Updated: 27th July 2026
Reviewed by: David Small BSc (Hons), MSc, MTOPRA (Founder and CEO)
What Is the Medical Device Coordination Group?
The Medical Device Coordination Group, commonly known as the MDCG, is an expert group established under Article 103 of Regulation (EU) 2017/745 on medical devices.
It is composed of representatives appointed by EU Member States and is chaired by the European Commission. Its role is to support the consistent implementation of both the EU Medical Device Regulation and the EU In Vitro Diagnostic Medical Device Regulation across Europe.
The MDCG does not create new legislation and its guidance documents do not replace the legal requirements contained within the MDR or IVDR. Instead, it helps manufacturers, Notified Bodies, competent authorities and other economic operators understand how particular regulatory requirements should be interpreted and applied in practice.
MDCG guidance covers a broad range of subjects, including:
- medical device and IVD classification
- clinical and performance evaluation
- software qualification and classification
- post-market surveillance and vigilance
- Unique Device Identification
- EUDAMED registration
- Notified Body activities
- transitional provisions
- legacy devices
- borderline products
- cybersecurity
As a result, MDCG documents have become an important part of the regulatory framework surrounding EU medical devices and IVDs.
New to the EU MDR?
MDCG guidance helps explain how the Medical Device Regulation should be applied in practice. For a complete introduction to Regulation (EU) 2017/745, including device classification, GSPRs, clinical evaluation, technical documentation, UDI, EUDAMED, post-market surveillance and CE marking, explore our EU MDR for Beginners Guide.
Need an Introduction to the EU IVDR?
Many MDCG guidance documents also apply to in vitro diagnostic medical devices under the IVDR. If you're looking for a complete introduction to Regulation (EU) 2017/746, including IVD classification, Performance Evaluation, Technical Documentation, Notified Bodies, UDI, EUDAMED and manufacturer obligations, read our EU IVDR for Beginners Guide.
What Does the MDCG Do?
The MDCG supports the European Commission and EU Member States in coordinating the implementation of the MDR and IVDR.
Its main activities include:
- advising the European Commission on medical device and IVD regulation
- supporting consistent interpretation of the MDR and IVDR
- contributing to the assessment and oversight of Notified Bodies
- developing and endorsing regulatory guidance
- supporting coordination between national competent authorities
- addressing implementation challenges and emerging technologies
- promoting consistent market surveillance and vigilance practices
Although the MDCG is not a legislative body, its guidance frequently provides the practical detail needed to apply broad regulatory provisions to real products, documentation and conformity assessment activities.
Why MDCG Guidance Matters
The MDR and IVDR establish the legal requirements that manufacturers must meet, but they do not always explain exactly how those requirements should be demonstrated within Technical Documentation, quality systems or regulatory submissions.
MDCG guidance helps bridge this gap.
For example, the regulations may establish that a manufacturer must:
- classify a device correctly
- prepare sufficient clinical evidence
- maintain post-market surveillance
- register relevant information in EUDAMED
- report serious incidents
- demonstrate compliance for medical device software
MDCG documents often provide additional explanation, recommended approaches, templates, examples and interpretations that help manufacturers understand how these obligations may be assessed in practice.
For this reason, relevant MDCG guidance should be considered when developing and maintaining:
- regulatory strategies
- device classification rationales
- Technical Documentation
- Clinical Evaluation Reports
- Performance Evaluation Reports
- risk management files
- post-market surveillance plans
- vigilance procedures
- software documentation
- EUDAMED and UDI processes
Are MDCG Guidance Documents Legally Binding?
One of the most common misconceptions is that Medical Device Coordination Group (MDCG) guidance documents are legally binding.
The short answer is no.
Unlike the Medical Device Regulation (EU) 2017/745 (MDR) and the In Vitro Diagnostic Medical Device Regulation (EU) 2017/746 (IVDR), MDCG guidance documents are not legislation. They do not create new legal obligations or replace the requirements set out in the Regulations.
Instead, MDCG documents represent the European Commission’s and Member States’ agreed interpretation of how particular regulatory requirements should be applied in practice. They provide detailed recommendations, practical examples and clarification to support consistent implementation of the MDR and IVDR across the European Union.
Although manufacturers are not legally required to follow every MDCG guidance document, they should carefully consider any guidance that is relevant to their products, intended purpose or regulatory pathway.
For example, if you are:
- developing medical device software
- preparing a Clinical Evaluation Report (CER)
- classifying a medical device or IVD
- implementing Post-Market Surveillance (PMS)
- registering devices in EUDAMED
- managing legacy devices during the MDR or IVDR transition
there are likely to be one or more MDCG guidance documents that provide valuable direction on regulatory expectations.
Why Manufacturers Should Pay Attention to MDCG Guidance
While MDCG documents are not legally binding, they are widely recognised by:
- European Competent Authorities
- Notified Bodies
- EU Authorised Representatives
- regulatory consultants
- manufacturers throughout Europe
During conformity assessment, Notified Bodies frequently assess Technical Documentation against the MDR or IVDR while also considering whether manufacturers have appropriately taken relevant MDCG guidance into account where applicable.
Ignoring well-established guidance does not automatically mean a product is non-compliant. However, manufacturers should be prepared to justify their chosen approach where it differs from widely accepted regulatory guidance.
For this reason, incorporating relevant MDCG recommendations into Technical Documentation, Quality Management Systems and regulatory processes is generally considered good regulatory practice and can help demonstrate a robust, well-reasoned approach to compliance.
Although these documents all contribute to medical device compliance, they serve very different purposes within the EU regulatory framework. Understanding how legislation, guidance, standards and Common Specifications interact helps manufacturers determine which requirements are mandatory, which provide recommended best practice, and how each supports conformity assessment under the MDR and IVDR.
This relationship is summarised below.
| Document Type | Legally Binding? | Purpose |
|---|---|---|
| EU MDR (2017/745) | ✔ Yes | Establishes the legal requirements for medical devices. |
| EU IVDR (2017/746) | ✔ Yes | Establishes the legal requirements for in vitro diagnostic medical devices. |
| MDCG Guidance Documents | ✖ No | Explain and clarify how the MDR and IVDR may be interpreted and applied in practice. |
| Harmonised Standards | ✖ Voluntary* | Provide recognised technical methods for demonstrating conformity with specific regulatory requirements. |
| Common Specifications (CS) | ✔ Where applicable | Establish mandatory technical or clinical requirements where harmonised standards are absent or insufficient. |
*Application of harmonised standards is voluntary, but compliance with harmonised standards generally provides a presumption of conformity with the corresponding legal requirements.
How MDCG Guidance Fits Within the EU Regulatory Framework
Medical device compliance under the MDR and IVDR is supported by several different types of regulatory documents, each serving a distinct purpose. Understanding how these documents relate to one another helps manufacturers develop compliant products, prepare robust Technical Documentation and successfully navigate conformity assessment.
At the top of the regulatory framework sit the MDR and IVDR, which establish the legal requirements that manufacturers and other economic operators must meet before placing devices on the European market.
Supporting the Regulations are guidance documents, technical standards and Common Specifications, each helping manufacturers demonstrate compliance in different ways.
The EU Medical Device Regulatory Framework
The relationship between these documents can be viewed as a hierarchy:
1. EU Regulations (MDR & IVDR)
These are legally binding throughout the European Union and establish the essential legal requirements for medical devices and in vitro diagnostic medical devices.
Examples include:
- manufacturer obligations
- device classification
- conformity assessment procedures
- clinical and performance evaluation
- post-market surveillance
- vigilance
- CE marking requirements
2. MDCG Guidance Documents
MDCG guidance provides practical interpretation of specific requirements contained within the MDR and IVDR.
Rather than creating new legal obligations, these documents explain how manufacturers, Notified Bodies and Competent Authorities may interpret and apply the Regulations consistently across Europe.
Examples include guidance covering:
- software qualification and classification
- legacy devices
- Clinical Evaluation
- Performance Evaluation
- Post-Market Surveillance
- EUDAMED
- Unique Device Identification (UDI)
- Article 120 transitional provisions
3. Harmonised Standards
Harmonised standards provide recognised technical methods for demonstrating conformity with particular regulatory requirements.
Although their use is generally voluntary, applying relevant harmonised standards often provides a presumption of conformity with the corresponding legal requirements.
Examples include:
- ISO 13485 – Quality Management Systems
- ISO 14971 – Risk Management
- IEC 62304 – Medical Device Software
- IEC 62366-1 – Usability Engineering
- ISO 10993 series – Biological Evaluation
4. Common Specifications (CS)
Where suitable harmonised standards do not exist, or additional technical requirements are considered necessary, the European Commission may adopt Common Specifications.
Unlike harmonised standards, Common Specifications are generally mandatory where they apply unless an equivalent level of safety and performance can be demonstrated using another justified approach.
Why Understanding the Framework Matters
Manufacturers should not rely on any single document when demonstrating compliance.
Successful regulatory submissions typically combine:
- compliance with the MDR or IVDR
- consideration of relevant MDCG guidance
- application of appropriate harmonised standards
- compliance with applicable Common Specifications
- robust technical and clinical evidence
By understanding how these elements work together, manufacturers can develop Technical Documentation that is both legally compliant and aligned with current regulatory expectations, reducing the likelihood of delays during conformity assessment or regulatory review.
Which MDCG Guidance Documents Apply to Your Device?
The Medical Device Coordination Group has published dozens of guidance documents covering different aspects of the MDR and IVDR. However, manufacturers are not expected to follow every MDCG publication. Instead, the guidance that applies depends on factors such as your product type, device classification, intended purpose and stage of the product lifecycle.
Understanding which documents are relevant allows manufacturers to focus on the guidance most likely to support successful regulatory submissions and ongoing compliance.
Factors That Determine Which Guidance Applies
Several factors influence which MDCG documents you should consider.
Product Type
Different guidance exists for medical devices and in vitro diagnostic medical devices (IVDs). While some documents apply across both Regulations, others are specific to either the MDR or IVDR.
For example:
- MDR guidance focuses on areas such as clinical evaluation, software classification, legacy devices and post-market surveillance.
- IVDR guidance covers topics including performance evaluation, scientific validity, companion diagnostics and IVD classification.
Device Classification
The regulatory expectations for a Class I device differ significantly from those for a Class III implantable device or a Class D IVD.
Higher-risk products generally require more extensive technical documentation, clinical or performance evidence, and greater involvement from a Notified Body. Many MDCG documents provide guidance tailored to these higher-risk conformity assessment activities.
Not Sure What Class Your Medical Device Is?
Many MDCG guidance documents focus on the correct application of the EU MDR classification rules. Learn how the EU MDR Classification Rules determine whether your device is Class I, IIa, IIb or III, and how classification influences Technical Documentation, clinical evidence, Notified Body involvement and the pathway to CE marking.
Technology Used
Certain technologies have dedicated guidance because of their unique regulatory challenges.
Examples include:
- medical device software and Software as a Medical Device (SaMD)
- artificial intelligence (AI) and machine learning
- implantable devices
- sterile devices
- reusable surgical instruments
- companion diagnostics
Manufacturers developing products in these areas should review any relevant technology-specific MDCG publications.
Stage of the Product Lifecycle
Different guidance becomes relevant as products progress through their lifecycle.
For example:
| Product Lifecycle Stage | Typical MDCG Guidance |
|---|---|
| Product development | Classification, software qualification, clinical strategy |
| Technical Documentation | Clinical evaluation, performance evaluation, GSPRs, Technical Documentation expectations |
| Conformity assessment | Notified Body guidance, sampling, certification processes |
| Market placement | UDI, EUDAMED registration, economic operators |
| Post-market activities | PMS, PMCF, PMPF, vigilance, trend reporting |
| Legacy device transition | Article 120 and transitional provisions |
A Risk-Based Approach to Using MDCG Guidance
Manufacturers should review MDCG publications as part of their overall regulatory strategy rather than waiting until Technical Documentation has been completed.
Considering relevant guidance early in product development can help:
- reduce gaps in Technical Documentation
- avoid unnecessary design changes later in development
- support appropriate clinical or performance evidence planning
- improve readiness for Notified Body review
- reduce regulatory delays during conformity assessment
- maintain ongoing compliance as guidance evolves
Rather than viewing MDCG documents as standalone publications, they should be considered practical tools that support the entire product lifecycle—from initial regulatory planning through to post-market surveillance.
Understand Medical Device Risk Management
Many MDCG guidance documents reference the principles of risk management when addressing device classification, clinical evaluation, software, post-market surveillance and Technical Documentation. Learn how ISO 14971 Risk Management helps manufacturers identify hazards, evaluate risks, implement effective risk controls and demonstrate compliance with the EU MDR and IVDR throughout the product lifecycle.
Categories of MDCG Guidance Documents
Since the introduction of the MDR and IVDR, the Medical Device Coordination Group has published guidance covering almost every stage of the medical device lifecycle. While the documents vary considerably in scope, they can generally be grouped into several broad categories based on the regulatory topics they address.
Understanding these categories makes it easier for manufacturers to identify the guidance most relevant to their products and compliance activities.
1. Device Classification Guidance
Correct classification is the starting point for every regulatory strategy. The classification of a device determines the applicable conformity assessment route, the level of clinical or performance evidence required and whether a Notified Body must be involved.
MDCG classification guidance helps manufacturers interpret the classification rules within the MDR and IVDR, particularly where products fall into borderline areas or involve emerging technologies.
Typical topics include:
- application of MDR and IVDR classification rules
- software qualification and classification
- borderline products
- accessories to medical devices
- combination products
This guidance is particularly valuable where the Regulations leave room for interpretation or where manufacturers need to justify their classification rationale within Technical Documentation.
2. Clinical and Performance Evaluation Guidance
Clinical evidence is one of the most important components of demonstrating regulatory compliance.
For medical devices, MDCG guidance supports manufacturers in preparing Clinical Evaluation Reports (CERs) and determining appropriate clinical evidence strategies.
For IVDs, the focus shifts towards Performance Evaluation, including scientific validity, analytical performance and clinical performance.
These documents help manufacturers understand regulatory expectations relating to:
- clinical evidence generation
- literature reviews
- equivalence
- performance evaluation planning
- Post-Market Clinical Follow-up (PMCF)
- Post-Market Performance Follow-up (PMPF)
Learn More About Medical Device Clinical Evaluation
Many MDCG guidance documents provide practical recommendations for planning, conducting and maintaining Clinical Evaluation under the EU MDR. Discover how a robust Medical Device Clinical Evaluation demonstrates safety, clinical performance and regulatory compliance through Clinical Evaluation Plans (CEPs), Clinical Evaluation Reports (CERs) and lifecycle clinical evidence.
3. Technical Documentation Guidance
Technical Documentation forms the foundation of every CE-marked medical device and IVD.
Several MDCG publications explain how manufacturers should prepare documentation that demonstrates compliance with the MDR or IVDR, including expectations for completeness, traceability and consistency.
Topics commonly addressed include:
- General Safety and Performance Requirements (GSPRs)
- Technical Documentation structure
- evidence requirements
- design documentation
- risk management integration
- usability engineering
- software documentation
Following this guidance can help manufacturers produce documentation that is easier for Notified Bodies and Competent Authorities to review.
Build a Strong MDR Technical File
Many MDCG guidance documents influence the content and structure of your Technical Documentation. Learn how to structure a Medical Device Technical File in accordance with Annex II and Annex III of the EU MDR, including device description, GSPRs, Risk Management, Clinical Evaluation, verification and validation, Post-Market Surveillance and conformity documentation required for CE marking.
4. Quality Management and Post-Market Guidance
Regulatory compliance continues throughout the entire product lifecycle.
MDCG guidance provides practical recommendations for implementing effective post-market activities, including the collection, review and analysis of real-world product data.
Common topics include:
- Post-Market Surveillance (PMS)
- vigilance reporting
- trend reporting
- Field Safety Corrective Actions (FSCAs)
- Post-Market Clinical Follow-up (PMCF)
- Post-Market Performance Follow-up (PMPF)
- Periodic Safety Update Reports (PSURs)
These activities enable manufacturers to continually demonstrate that their devices remain safe and perform as intended once placed on the market.
Build an ISO 13485 Quality Management System
Keeping up with new MDCG guidance is an important part of maintaining an effective Quality Management System. Discover how ISO 13485 helps medical device manufacturers establish documented processes for regulatory intelligence, document control, risk management, design and development, post-market surveillance and continual improvement to support ongoing MDR and IVDR compliance.
5. Software and Digital Health Guidance
Software continues to be one of the fastest-growing areas of medical device regulation.
The MDCG has published several influential guidance documents explaining how software should be qualified, classified and assessed under the MDR.
These documents cover subjects including:
- software qualification
- Software as a Medical Device (SaMD)
- mobile medical applications
- artificial intelligence
- cybersecurity considerations
- software lifecycle expectations
For digital health manufacturers, these publications often form an essential part of the regulatory strategy.
Developing Medical Device Software?
Several MDCG guidance documents provide practical recommendations for software qualification, classification and regulatory compliance under the EU MDR. Explore our IEC 62304 Medical Device Software Development Guide to learn how software lifecycle processes, risk management, verification, validation and maintenance support the development of safe, compliant medical device software and Software as a Medical Device (SaMD).
6. Registration, UDI and EUDAMED Guidance
Manufacturers must also meet various administrative requirements before placing products on the European market.
MDCG guidance supports implementation of:
- Unique Device Identification (UDI)
- EUDAMED registration
- actor registration
- Basic UDI-DI assignment
- device registration
- economic operator obligations
- data submission requirements
As EUDAMED continues to become fully operational, these documents remain particularly important for manufacturers preparing for registration activities.
Understand UDI and EUDAMED Traceability
Several MDCG guidance documents explain how Unique Device Identification (UDI) and EUDAMED strengthen medical device traceability throughout the product lifecycle. Learn how UDI and EUDAMED work together to support device registration, regulatory transparency, post-market surveillance, vigilance and faster corrective actions under the EU MDR and IVDR.
7. Notified Body and Conformity Assessment Guidance
Many MDCG documents are intended to promote consistency in how Notified Bodies conduct conformity assessment.
Although manufacturers are not the primary audience for every publication, these documents provide valuable insight into how regulatory submissions may be reviewed.
Topics include:
- conformity assessment procedures
- sampling methodologies
- certification processes
- surveillance audits
- designation and oversight of Notified Bodies
- expectations during regulatory review
Understanding this guidance can help manufacturers prepare documentation that aligns more closely with the approaches adopted by Notified Bodies.
Preparing for a Notified Body Review?
Many MDCG guidance documents are developed to promote consistent interpretation of the MDR and IVDR by Notified Bodies during conformity assessment. Learn how EU Notified Bodies assess Technical Documentation, Clinical Evaluation, Quality Management Systems and regulatory evidence, and discover practical tips for preparing a successful CE marking submission.
Bringing the Guidance Together
Although these categories are presented separately, they are closely interconnected. A single device may require manufacturers to consider guidance on classification, clinical evaluation, software, Technical Documentation, UDI and post-market surveillance simultaneously.
Rather than viewing MDCG publications as isolated documents, manufacturers should use them collectively to build a coherent regulatory strategy that supports compliance throughout the entire product lifecycle.
Key MDCG Guidance Documents Every Manufacturer Should Know
The Medical Device Coordination Group has published numerous guidance documents since the introduction of the MDR and IVDR. While some publications are aimed primarily at Competent Authorities or Notified Bodies, many provide practical guidance that manufacturers can use to support regulatory strategy, Technical Documentation and ongoing compliance.
The table below highlights some of the most widely referenced MDCG guidance documents and explains why they are important.
| MDCG Document | Topic | Applies To | Why It Matters |
|---|---|---|---|
| MDCG 2019-11 | Qualification and Classification of Software | MDR | Explains when software is considered a medical device and how Rule 11 should be applied. |
| MDCG 2021-24 | Classification of Medical Devices | MDR | Provides practical examples demonstrating how the MDR classification rules should be interpreted. |
| MDCG 2020-5 | Clinical Evaluation – Equivalence | MDR | Explains how manufacturers can justify equivalence when using existing clinical data. |
| MDCG 2020-6 | Clinical Evidence for Legacy Devices | MDR | Clarifies expectations for clinical evidence supporting legacy devices during transition. |
| MDCG 2020-7 | PMCF Evaluation Report Template | MDR | Provides a recommended structure for documenting Post-Market Clinical Follow-up activities. |
| MDCG 2022-21 | Periodic Safety Update Report (PSUR) | MDR | Explains regulatory expectations for preparing and maintaining PSURs. |
| MDCG 2023-3 | Vigilance Terminology | MDR & IVDR | Standardises terminology used for vigilance reporting and incident management. |
| MDCG 2021-1 | Standardisation Strategy | MDR & IVDR | Explains how harmonised standards and Common Specifications support regulatory compliance. |
| MDCG 2021-25 | Application of MDR Transitional Provisions | MDR | Clarifies the application of Article 120 and the transition from the Medical Devices Directive (MDD). |
| MDCG 2022-4 | Guidance on Appropriate Surveillance | MDR & IVDR | Supports manufacturers and authorities in implementing effective post-market surveillance activities. |
| MDCG 2022-14 | Notified Body Capacity and Availability | MDR & IVDR | Provides recommendations for improving conformity assessment planning and certification timelines. |
| MDCG 2022-10 | Electronic Instructions for Use | MDR | Explains when electronic IFUs may be used and the associated regulatory requirements. |
| MDCG 2024-2 | Procedures for the Updates of European Medical Device Nomenclature (EMDN) | MDR & IVDR | Explains how the EMDN is maintained and updated for device registration and EUDAMED. |
| MDCG 2022-11 | Guidance on Authorised Representatives | MDR & IVDR | Clarifies the responsibilities and obligations of EU Authorised Representatives. |
| MDCG 2020-16 | Cybersecurity Guidance | MDR | Provides recommendations for addressing cybersecurity throughout the medical device lifecycle. |
Which Documents Should Manufacturers Read First?
Manufacturers do not need to become familiar with every MDCG publication before developing or placing a device on the market. Instead, they should prioritise the guidance that is most relevant to their products, intended purpose and regulatory pathway.
For most manufacturers, a sensible starting point includes guidance covering:
- device classification
- software qualification (where applicable)
- clinical or performance evaluation
- Technical Documentation
- post-market surveillance
- vigilance
- UDI and EUDAMED
- transitional provisions (where relevant)
As products evolve or regulatory requirements change, additional MDCG publications may become relevant. Regularly reviewing newly published guidance helps manufacturers ensure their Quality Management System and Technical Documentation remain aligned with current regulatory expectations.
Good practice: Incorporate a periodic review of new or updated MDCG guidance into your regulatory or Quality Management System review process. This can help identify changes that may affect device classification, clinical evidence, post-market activities or regulatory submissions before they become compliance issues.
How to Stay Up to Date with New MDCG Guidance
The regulatory landscape for medical devices and in vitro diagnostic medical devices continues to evolve. As new technologies emerge, regulatory challenges develop and the implementation of the MDR and IVDR matures, the Medical Device Coordination Group regularly publishes new guidance documents and updates existing publications.
For manufacturers, keeping abreast of these changes is an important part of maintaining regulatory compliance. A guidance document that did not exist when a device was first CE marked may later introduce new recommendations that affect Technical Documentation, Clinical Evaluation, software development, post-market surveillance or regulatory processes.
Developing a structured approach to monitoring MDCG publications helps manufacturers identify relevant changes early and implement them in a controlled manner through their Quality Management System (QMS).
Practical Ways to Monitor New Guidance
Rather than relying on occasional internet searches or industry news, manufacturers should establish a formal process for reviewing new and updated MDCG guidance.
Good practice includes:
- regularly reviewing newly published MDCG guidance documents
- monitoring updates issued by the European Commission
- reviewing revisions to existing MDCG publications
- assessing whether new guidance affects existing products or Technical Documentation
- updating internal procedures where appropriate
- documenting regulatory impact assessments within the QMS
Many organisations include this activity within their regulatory surveillance process, ensuring that changes in legislation, standards and guidance are reviewed at planned intervals.
Incorporating MDCG Reviews into Your Quality Management System
Reviewing MDCG guidance should not be treated as a standalone activity. Instead, it should form part of the organisation’s wider regulatory intelligence and continuous improvement processes.
For example, an annual or quarterly regulatory review may include:
- newly published MDCG guidance
- revised MDCG documents
- changes to the MDR or IVDR
- updates to harmonised standards
- new Common Specifications
- changes affecting EUDAMED implementation
- relevant Competent Authority publications
Where a change could affect product compliance, manufacturers should perform a documented impact assessment to determine whether updates are required to:
- Technical Documentation
- Clinical Evaluation Reports (CERs)
- Performance Evaluation Reports (PERs)
- Risk Management Files
- Post-Market Surveillance Plans
- Clinical or Performance Evaluation Plans
- labelling and Instructions for Use
- Quality Management System procedures
Maintaining documented records of these reviews demonstrates that regulatory changes are being actively monitored and managed throughout the product lifecycle.
Why Early Awareness Matters
Identifying new guidance early allows manufacturers to plan compliance activities before they become urgent.
This can help organisations:
- reduce the likelihood of non-conformities during audits
- avoid delays during Notified Body conformity assessments
- prepare Technical Documentation that reflects current regulatory expectations
- minimise costly documentation revisions late in the certification process
- maintain confidence that devices continue to meet evolving regulatory expectations
A proactive approach also supports continual improvement by ensuring regulatory processes evolve alongside changes in legislation, guidance and industry best practice.
Best Practice Tip
Establish a formal Regulatory Intelligence Procedure within your ISO 13485 Quality Management System. Assign responsibility for monitoring MDCG publications, define how often new guidance will be reviewed, document the impact assessment process and retain records of any actions taken. This demonstrates an effective approach to regulatory surveillance and helps ensure compliance activities remain aligned with current MDR and IVDR expectations.
Common Mistakes Manufacturers Make When Using MDCG Guidance
MDCG guidance documents are intended to help manufacturers apply the MDR and IVDR consistently and effectively. However, misunderstanding how these documents should be used can lead to unnecessary compliance risks, delays during conformity assessment and deficiencies within Technical Documentation.
The following are some of the most common mistakes manufacturers make and how they can be avoided.
Mistake 1: Assuming Every MDCG Document Applies
Not every guidance document is relevant to every manufacturer or every device.
Some publications apply specifically to medical devices under the MDR, while others relate only to IVDs under the IVDR. Likewise, guidance aimed at software manufacturers may have little relevance to manufacturers of conventional implantable or reusable devices.
Before applying an MDCG document, manufacturers should consider:
- the applicable Regulation (MDR or IVDR)
- device classification
- intended purpose
- technology used
- stage of the product lifecycle
- conformity assessment route
Focusing on the guidance that genuinely applies helps ensure regulatory efforts remain proportionate and effective.
Mistake 2: Treating MDCG Guidance as Legislation
Although MDCG guidance carries significant regulatory weight, it is not legislation.
The legal requirements remain those contained within the MDR and IVDR. Guidance documents explain how these requirements may be interpreted and implemented, but they do not introduce new legal obligations.
Manufacturers should understand the distinction between mandatory legal requirements and recommended regulatory guidance when developing their compliance strategy.
Mistake 3: Using Outdated Guidance
The MDCG regularly publishes new documents and revises existing guidance as regulatory experience develops.
Continuing to rely on superseded guidance may result in Technical Documentation that no longer reflects current regulatory expectations.
Manufacturers should periodically review whether:
- guidance has been updated
- revisions affect existing documentation
- new recommendations require procedural changes
- older publications have been replaced
Maintaining an effective regulatory intelligence process helps ensure documentation remains current.
Mistake 4: Failing to Document Regulatory Decisions
Simply reading an MDCG document is not enough.
Where guidance influences important regulatory decisions—such as device classification, clinical evidence, software qualification or post-market surveillance—manufacturers should clearly document how the guidance was considered.
Examples include:
- classification justifications
- Clinical Evaluation Reports
- Performance Evaluation Reports
- Risk Management Files
- Technical Documentation
- regulatory strategy documents
Documenting the rationale behind key decisions demonstrates a systematic and evidence-based approach to compliance.
Mistake 5: Ignoring Guidance Until Notified Body Review
Some manufacturers only review MDCG guidance when preparing for a conformity assessment or responding to questions from a Notified Body.
By this stage, implementing new recommendations may require substantial updates to Technical Documentation, clinical evidence or internal procedures.
Reviewing relevant guidance during product development and throughout the device lifecycle helps reduce the risk of unexpected findings during regulatory review.
Mistake 6: Overlooking the Interaction Between Guidance Documents
Individual MDCG publications should not be considered in isolation.
For example, guidance on software classification may also influence:
- clinical evaluation
- risk management
- usability engineering
- cybersecurity
- Technical Documentation
- post-market surveillance
Similarly, guidance on UDI may have implications for labelling, EUDAMED registration and Quality Management System procedures.
Considering how different guidance documents interact helps manufacturers develop a more coherent and robust regulatory strategy.
Building a Robust Regulatory Approach
The most successful manufacturers use MDCG guidance as part of a broader compliance framework that combines:
- compliance with the MDR or IVDR
- implementation of an effective ISO 13485 Quality Management System
- application of relevant harmonised standards
- appropriate use of Common Specifications
- continual monitoring of regulatory developments
- well-maintained Technical Documentation throughout the product lifecycle
By understanding both the purpose and limitations of MDCG guidance, manufacturers can make informed regulatory decisions, improve the quality of their documentation and reduce the likelihood of delays during conformity assessment.
How to Use MDCG Guidance Within Your Technical Documentation
MDCG guidance documents are not intended to be read in isolation. Their greatest value comes from applying the recommendations throughout the development, documentation and maintenance of a medical device or IVD.
Rather than simply referencing an MDCG document within a Technical File, manufacturers should consider how the guidance influences their regulatory decisions and ensure those decisions are reflected consistently across the documentation.
Where MDCG Guidance Can Be Applied
Relevant MDCG guidance may influence many parts of a manufacturer’s Technical Documentation.
Examples include:
| Technical Documentation Section | How MDCG Guidance Can Help |
|---|---|
| Device Classification | Supporting the classification rationale and interpretation of MDR or IVDR classification rules. |
| Intended Purpose | Ensuring the intended purpose aligns with regulatory definitions and supporting guidance. |
| General Safety and Performance Requirements (GSPRs) | Assisting with interpretation of regulatory expectations when demonstrating conformity. |
| Clinical Evaluation / Performance Evaluation | Supporting clinical evidence strategies, literature reviews, equivalence assessments and evaluation methodologies. |
| Risk Management | Helping identify regulatory expectations that should be reflected within the Risk Management File. |
| Software Documentation | Applying software qualification, classification and lifecycle guidance where relevant. |
| Post-Market Surveillance | Supporting PMS planning, PMCF or PMPF activities and vigilance procedures. |
| UDI and EUDAMED | Assisting with registration activities, Basic UDI-DI allocation and traceability requirements. |
Demonstrating a Structured Regulatory Approach
Simply listing an MDCG document in the Technical Documentation is unlikely to demonstrate meaningful compliance.
Instead, manufacturers should be able to show:
- which guidance documents were considered
- why they were relevant to the device
- how the recommendations were applied
- where alternative approaches were adopted and why
- how the guidance influenced regulatory decisions
This provides evidence that regulatory decisions have been made systematically rather than arbitrarily.
Keep Documentation Consistent
One of the most common findings during regulatory reviews is inconsistency between different parts of the Technical Documentation.
For example, an MDCG guidance document may influence the device classification, but the same rationale should also be reflected within:
- the intended purpose
- the Clinical Evaluation Report
- the Risk Management File
- the GSPR Checklist
- labelling and Instructions for Use
- Post-Market Surveillance documentation
Ensuring that these documents remain aligned helps demonstrate a coherent regulatory strategy and reduces the likelihood of questions during conformity assessment.
Integrate MDCG Guidance Into Your QMS
The application of MDCG guidance should not rely on individual knowledge or informal processes. Instead, manufacturers should incorporate guidance reviews into their Quality Management System.
This may include procedures for:
- monitoring newly published MDCG documents
- assessing their applicability
- documenting impact assessments
- updating Technical Documentation where required
- training relevant personnel on significant regulatory changes
Embedding these activities within the QMS supports continual compliance and helps ensure that regulatory documentation evolves alongside changing expectations.
Key Takeaway
MDCG guidance is most effective when it is used to inform regulatory decisions throughout the product lifecycle—not simply referenced after the Technical Documentation has been completed. By integrating relevant guidance into classification, clinical evaluation, risk management, post-market surveillance and Quality Management System processes, manufacturers can produce documentation that is more consistent, robust and aligned with current MDR and IVDR expectations.
How Patient Guard Can Help
Navigating the growing number of MDCG guidance documents can be challenging, particularly for manufacturers developing new products or transitioning existing devices to the MDR or IVDR. Understanding which guidance applies, how it should be interpreted and how it should be incorporated into Technical Documentation requires both regulatory knowledge and practical experience.
At Patient Guard, we work with manufacturers throughout the entire product lifecycle, helping them interpret regulatory guidance and translate it into practical compliance activities. Whether you are developing your first medical device or maintaining an established product portfolio, we can help ensure your regulatory strategy remains aligned with current European expectations.
Our consultants provide support across a wide range of regulatory activities, including:
- identifying the MDCG guidance documents relevant to your products
- developing regulatory strategies for MDR and IVDR compliance
- preparing and reviewing Technical Documentation
- Clinical Evaluation Reports (CERs) and Performance Evaluation Reports (PERs)
- Risk Management documentation in accordance with ISO 14971
- General Safety and Performance Requirements (GSPR) checklists
- software qualification and classification under the MDR
- Post-Market Surveillance (PMS), PMCF and PMPF documentation
- ISO 13485 Quality Management System implementation and maintenance
- preparation for Notified Body conformity assessments
Practical Regulatory Support
Rather than simply identifying the applicable guidance, we help manufacturers understand how it affects their products and documentation in practice.
Our support includes:
- reviewing existing Technical Documentation against current regulatory expectations
- identifying gaps that may delay conformity assessment
- advising on the application of newly published MDCG guidance
- supporting documentation updates following regulatory changes
- helping manufacturers prepare for audits and regulatory inspections
By integrating current MDCG guidance into your regulatory processes, we help reduce uncertainty, strengthen Technical Documentation and improve readiness for regulatory review.
Supporting Compliance Throughout the Product Lifecycle
Regulatory compliance does not end once a device has been CE marked. As guidance evolves, manufacturers should continually review their documentation and processes to ensure they remain aligned with current expectations.
Patient Guard supports organisations with ongoing regulatory and quality activities throughout the product lifecycle, helping them maintain compliance as legislation, guidance and industry best practice continue to develop.
Whether you require support with a single guidance document or a complete MDR or IVDR compliance programme, our experienced regulatory consultants can provide practical, proportionate advice tailored to your products and business.
Conclusion
Medical Device Coordination Group (MDCG) guidance documents have become an integral part of the European medical device regulatory landscape. While they are not legally binding legislation, they provide valuable interpretation and practical clarification of the requirements contained within the EU Medical Device Regulation (MDR) and In Vitro Diagnostic Medical Device Regulation (IVDR). For manufacturers, they offer an important insight into current regulatory expectations and support the consistent application of the Regulations across the European Union.
Understanding which MDCG guidance documents apply to your products—and how their recommendations should be incorporated into your Technical Documentation, Quality Management System and post-market activities—can help strengthen your regulatory strategy, improve documentation quality and reduce the risk of delays during conformity assessment. As new guidance continues to be published, manufacturers should establish robust regulatory intelligence processes to ensure their documentation and procedures remain aligned with the latest developments.
Whether you are developing a new medical device, transitioning a legacy product to the MDR or IVDR, preparing for Notified Body review or maintaining compliance throughout the product lifecycle, keeping up to date with relevant MDCG guidance is an important part of demonstrating ongoing regulatory compliance.
If you require support interpreting MDCG guidance, preparing Technical Documentation or developing a regulatory strategy for the EU MDR or IVDR, Patient Guard’s experienced regulatory consultants can provide practical, proportionate advice tailored to your products, technology and business objectives.
Frequently Asked Questions About MDCG
An MDCG guidance document is a publication issued by the Medical Device Coordination Group (MDCG) to help manufacturers, Notified Bodies and Competent Authorities interpret and apply the requirements of the EU Medical Device Regulation (MDR) and In Vitro Diagnostic Medical Device Regulation (IVDR). These documents provide practical clarification on regulatory topics but do not replace the legislation itself.
No. MDCG guidance documents are not legally binding legislation. The legally enforceable requirements are contained within the MDR and IVDR. However, MDCG guidance reflects the European Commission’s and Member States’ agreed interpretation of the Regulations and is widely considered during conformity assessment and regulatory reviews.
MDCG guidance documents are developed by the Medical Device Coordination Group, an expert body established under Article 103 of the MDR. The group consists of representatives from each EU Member State and is chaired by the European Commission.
Manufacturers should consider any MDCG guidance that is relevant to their products, technology and regulatory pathway. Not every document applies to every manufacturer, but relevant guidance can help support compliance, improve Technical Documentation and demonstrate alignment with current regulatory expectations.
There is no fixed publication schedule. New MDCG documents are released throughout the year as new regulatory issues emerge, while existing guidance may also be revised or replaced. Manufacturers should regularly monitor updates to ensure they remain aware of the latest guidance.
The most relevant guidance depends on the type of device being developed. Commonly referenced documents cover topics such as device classification, software qualification and classification, clinical evaluation, performance evaluation, Technical Documentation, post-market surveillance, vigilance, UDI, EUDAMED and transitional provisions.
MDCG guidance helps manufacturers understand regulatory expectations for areas such as device classification, General Safety and Performance Requirements (GSPRs), Clinical Evaluation, Performance Evaluation, Risk Management, software documentation and post-market surveillance. Applying relevant guidance can strengthen the quality and consistency of Technical Documentation.
Notified Bodies assess compliance against the legal requirements of the MDR and IVDR. However, they also expect manufacturers to be aware of relevant MDCG guidance and to have considered its recommendations where applicable. If a manufacturer chooses a different approach, they should be able to justify their rationale with appropriate evidence.
The latest MDCG guidance documents are published by the European Commission on its official medical devices website. Manufacturers should always refer to the most recent version of each document and check whether any previous guidance has been updated or replaced.
Manufacturers should establish a regulatory intelligence process within their Quality Management System (QMS). This should include regularly reviewing new MDCG publications, assessing their applicability, documenting regulatory impact assessments and updating Technical Documentation or procedures where necessary.
MDCG guidance explains how the MDR and IVDR may be interpreted and applied in practice, while harmonised standards provide recognised technical methods for demonstrating conformity with specific regulatory requirements. Although harmonised standards are generally voluntary, applying them often provides a presumption of conformity with the relevant legal requirements.
Yes. Patient Guard supports medical device and IVD manufacturers with the practical application of MDCG guidance, including regulatory strategy, device classification, Technical Documentation, Clinical and Performance Evaluation, Risk Management, ISO 13485 Quality Management Systems, Post-Market Surveillance and preparation for Notified Body conformity assessments. Our consultants help manufacturers understand which guidance applies to their products and how it can be incorporated into a robust regulatory compliance strategy.
References
This guide is based on the following legislation, international standards and official regulatory guidance relating to Medical Device Coordination Group (MDCG) guidance under the European Medical Devices Regulation (MDR) and In Vitro Diagnostic Medical Devices Regulation (IVDR).
| Organisation | Reference | Why it's relevant |
|---|---|---|
| European Union | Regulation (EU) 2017/745 on Medical Devices (MDR) | Provides the legal framework for medical devices within the European Union and establishes the Medical Device Coordination Group (MDCG) under Article 103 to support the consistent application of the MDR. |
| European Union | Regulation (EU) 2017/746 on In Vitro Diagnostic Medical Devices (IVDR) | Establishes the legal framework for in vitro diagnostic medical devices and defines the role of the MDCG in supporting the consistent implementation of the IVDR. |
| European Commission | MDCG Endorsed Documents and Other Guidance | Provides the official repository of endorsed MDCG guidance documents covering classification, clinical evaluation, software, technical documentation, post-market surveillance, vigilance, EUDAMED, notified bodies and many other regulatory topics. |
| European Commission | Notified Bodies for Medical Devices | Explains the role of Notified Bodies and how they apply the MDR alongside MDCG guidance when assessing conformity, technical documentation and Quality Management Systems. |
| International Organization for Standardization (ISO) | ISO 13485:2016 – Medical Devices – Quality Management Systems – Requirements for Regulatory Purposes | Defines the internationally recognised Quality Management System requirements that complement MDR and IVDR implementation. Many MDCG guidance documents assume manufacturers have an effective Quality Management System supporting regulatory compliance. |
MDCG guidance continues to evolve as new documents are published and existing guidance is revised or archived. Manufacturers should always consult the latest published legislation, recognised standards and official MDCG guidance when interpreting and applying the MDR and IVDR.
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