EU MDR PMS Plan, PMSR and PSUR: Class-by-Class Requirements (Articles 83–86)

Quick answer

Under Regulation (EU) 2017/745, every manufacturer must run a post-market surveillance (PMS) system and maintain a PMS plan in technical documentation (Annex III). Class I devices require a post-market surveillance report (PMSR) under Article 85. Class IIa, IIb, and III devices require a periodic safety update report (PSUR) under Article 86 — with Class IIa updated at least every two years, and Class IIb/III at least annually. Class III and implantable devices also have Notified Body and EUDAMED submission obligations under Article 86(2).

Who this applies to

This applies to manufacturers placing MDR-compliant medical devices on the EU market under Regulation (EU) 2017/745, including legacy devices transitioning under MDR timelines where PMS obligations apply.

Roles most involved:

• Manufacturer — owns PMS system, PMS plan, PMSR/PSUR
• Person responsible for regulatory compliance (PRRC) — oversight of PMS conformity
• Notified Body — reviews PSURs for Class IIb/III (and Class III/implantable EUDAMED submissions)
• Competent Authorities — may request PMSR/PSUR

PMS definitions and system (Articles 2 and 83)

MDR Article 2 defines post-market surveillance as a systematic procedure to proactively collect and review experience from devices on the market.

Article 83 requires manufacturers to plan, establish, document, implement, maintain, update, and continuously improve a PMS system that is proportionate to the risk class and type of the device.

Your PMS system should feed:

• Risk management (ISO 14971 linkage)
• Clinical evaluation / PMCF
• Corrective and preventive actions
• Technical documentation updates
• Vigilance reporting where applicable

PMS plan (Article 84 and Annex III)

Article 84 requires the PMS plan as part of technical documentation per Annex III.

At minimum, the PMS plan should describe:

• How post-market data is collected (complaints, literature, registries, feedback, field data)
• How data is analyzed for trends and signals
• How results link to benefit-risk and CAPA
• PMCF activities where applicable
• Internal reporting cadence and responsibilities

Treat the PMS plan as a living document — not a one-time MDR submission artifact.

PMSR vs PSUR: class-by-class comparison

Class I — Post-market surveillance report (Article 85)

Manufacturers of Class I devices (other than custom-made or investigational devices) must prepare a PMS report summarizing PMS results and conclusions.

Key points:

• Update the PMSR when necessary
• Make it available to the competent authority upon request
• No PSUR is required for Class I under Article 86

Class IIa, IIb, III — PSUR (Article 86)

Manufacturers must prepare a PSUR for each device and, where relevant, for each category or group of devices.

PSUR content (Article 86(1))

Throughout the device lifetime, the PSUR must set out:

• Results and conclusions of PMS data analyses from the PMS plan
• Rationale and description of preventive and corrective actions
• Conclusions of the benefit-risk determination
• Main findings of PMCF where applicable
• Volume of sales, estimated population using the device, and frequency of use

Update frequencies (Article 86(1) second paragraph)

• Class IIb and III: update PSUR at least annually
• Class IIa: update PSUR when necessary and at least every two years

Submission and Notified Body review (Article 86(2))

For Class III devices and implantable devices, manufacturers must submit PSURs through the electronic system in Article 92 (EUDAMED) to the Notified Body involved in the conformity assessment. The NB reviews the report and adds its evaluation in EUDAMED. PSURs and NB evaluations are available to competent authorities through that system.

Step-by-step: build your MDR PMS documentation set

1. Classify the device under MDR rules — class drives PMSR vs PSUR.
2. Write the PMS plan aligned with Annex III and your risk class.
3. Implement data sources — complaints, service reports, literature, registries, distributor feedback.
4. Analyze signals on a defined cadence; link to risk file and CAPA.
5. Produce PMSR or PSUR using Article 85 or 86 templates.
6. Set calendar triggers — annual (IIb/III) or biennial (IIa minimum).
7. Submit/review — route PSUR to NB; Class III/implantables through EUDAMED per Article 86(2).
8. Update technical documentation and QMS records after each cycle.

Checklist: PMS plan and PSUR readiness

• Device class confirmed under MDR
• PMS plan documented in Annex III technical documentation
• Data inputs defined (complaints, FSCA, PMCF, literature, sales)
• Benefit-risk linkages documented
• Corrective/preventive actions tracked in PSUR/PMSR
• PMCF main findings included where applicable
• Sales volume and user population estimates included (PSUR)
• Update frequency calendar set (annual vs biennial)
• NB/EUDAMED submission path confirmed for Class IIb/III/implantables
• PRRC and management review loops defined

Common pitfalls

1. Treating PMS as complaint handling only — MDR expects proactive surveillance.
2. One generic PMS plan for all SKUs — risk class and device type must drive proportionality.
3. Confusing PMSR with PSUR — Class I uses PMSR; IIa+ uses PSUR.
4. Missing sales/population data in PSUR — explicitly required in Article 86(1).
5. Ignoring NB review timelines — Class IIb/III PSURs require NB interaction.
6. Skipping EUDAMED route for Class III/implantables — Article 86(2) mandates electronic submission.
7. Not feeding PMS back into clinical evaluation — PMCF and PMS must align.

FAQ

Does Class I need a PSUR under EU MDR?

No. Class I manufacturers prepare a PMS report (PMSR) under Article 85, not a PSUR.

How often must a Class IIa PSUR be updated?

At least every two years, and when necessary if safety signals require earlier updates.

How often must Class IIb and III PSURs be updated?

At least annually.

What must be included in an MDR PSUR?

Article 86(1) requires PMS analysis conclusions, CAPA rationale, benefit-risk conclusions, main PMCF findings, and sales/user population/frequency data where applicable.

Where does the PMS plan live?

In technical documentation per Article 84, aligned with Annex III.

Do implantable Class IIb devices use EUDAMED for PSUR?

Article 86(2) covers Class III and implantable devices — implantable Class IIb PSURs follow the EUDAMED submission path to the Notified Body.

Can one PSUR cover multiple devices?

Yes, where relevant for a category or group of devices, if justified and consistent with Article 86.

Official sources

• EUR-Lex — Regulation (EU) 2017/745 consolidated text: https://eur-lex.europa.eu/eli/reg/2017/745/2024-07-09/eng
• EUR-Lex — Regulation (EU) 2017/745 original text: https://eur-lex.europa.eu/legal-content/en/ALL/?uri=oj%3AJOL_2017_117_R_0001