EMDN A04: Solution Filters

Complete hierarchy for EMDN group A04 in category A (Devices for Administration, Withdrawal and Collection): 6 terminal codes, EMDN v2026. Terminal codes are the ones accepted in a EUDAMED device record.

Registered classes, as of 8 Sep 2026. For each code with at least 20 registrations under a legislation, the chip shows how devices registered in EUDAMED under that code are classed, counted once per primary UDI-DI and kept separate for each legislation. It is not a determination. The class of a device comes from the MDR and IVDR classification rules for its intended purpose. MDD and IVDD classes are the directive classification and can differ from the class the same device would have under MDR or IVDR.

  • A04Solution Filters
    • A0401Infusion and Withdrawl Filters
      • A040101Administration and Aspiration Filters
        • A04010101Withdrawl and Administration Filters (0.2-1.2 Microns)MDR 98.5% Class IIa · n=210MDD 2 classes · n=93terminal

          Registered in EUDAMED under MDR with this code: 207 of 210 devices carry Class IIa on their registration (as of 8 Sep 2026).

          • 207 Class IIa (98.5%)
          • 3 Class I (1.4%)

          Registered in EUDAMED under MDD with this code, the 93 devices are split across classes (as of 8 Sep 2026).

          • 86 Class IIa (92.4%)
          • 7 Class I (7.5%)

          Counted once per primary UDI-DI, using the class on the registration. The class of a device comes from the MDR and IVDR classification rules for its intended purpose, so a code is evidence of how others registered, not a determination. MDD and IVDD classes are the directive classification and can differ under MDR or IVDR.

        • A04010102Aspiration and Transfer Filters (>= 5 Microns)terminal
        • A04010199Administration and Aspiration Filters - OtherMDR 2 classes · n=37MDD 2 classes · n=34terminal

          Registered in EUDAMED under MDR with this code, the 37 devices are split across classes (as of 8 Sep 2026).

          • 22 Class I (59.4%)
          • 15 Class IIa (40.5%)

          Registered in EUDAMED under MDD with this code, the 34 devices are split across classes (as of 8 Sep 2026).

          • 18 Class I (52.9%)
          • 16 Class IIa (47.0%)

          Counted once per primary UDI-DI, using the class on the registration. The class of a device comes from the MDR and IVDR classification rules for its intended purpose, so a code is evidence of how others registered, not a determination. MDD and IVDD classes are the directive classification and can differ under MDR or IVDR.

      • A040180Infusion and Withdrawl Filters - Accessoriesterminal
      • A040199Infusion and Withdrawl Filters - Otherterminal
    • A0499Solution Filters - OtherMDR 2 classes · n=152terminal

      Registered in EUDAMED under MDR with this code, the 152 devices are split across classes (as of 8 Sep 2026).

      • 132 Class I (86.8%)
      • 20 Class IIa (13.1%)

      Counted once per primary UDI-DI, using the class on the registration. The class of a device comes from the MDR and IVDR classification rules for its intended purpose, so a code is evidence of how others registered, not a determination.

How A04 is structured

6
terminal codes, selectable in a device record
2
branch headings, not selectable
2
name a specific device type
67%
fallback entries: Other and Accessories

The Solution Filters branch runs 3 levels deep. 2 entries below are branch headings that group other codes rather than naming a device, so a classification has to resolve all the way down to one of the 6 codes marked terminal.

3 terminal codes are “- Other” entries and 1 is an “- Accessories” entry, 67% of the branch. An “- Other” code is the residual slot for devices its siblings do not name, so it is worth ruling out every specific sibling before settling on one.

Frequently asked questions

Which A04 codes can be used in a EUDAMED device record?
6 of the 8 codes listed under A04 (Solution Filters) are terminal and can be selected. The other 2 are branch headings that cannot.
How deep is the A04 hierarchy?
The A04 branch runs 3 levels below the group code.
How many A04 codes are catch-all entries?
3 terminal codes under A04 are "- Other" entries and 1 is an "- Accessories" entry, 67% of the branch. The remaining 2 name a specific device type.

Not sure which level to stop at, or which of two plausible codes to submit? The guide to choosing an EMDN code walks the decision level by level, with a worked example and the mistakes that get a EUDAMED registration rejected.

Classifying more than a handful of devices?

EUDAMate maps your device list against all 6,773 terminal EMDN codes with confidence-scored suggestions you review and confirm. Start with a free Readiness Check on your own data.

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Other groups in category A

A01NeedlesA02SyringesA03Tubular DevicesA05Mechanical Infusion Systems, Single-UseA06Drainage and Fluids Collection DevicesA07Adapters, Connectors, Ramps, Stopcocks, CapsA08Nutrition and Infusion Bags and Containers, Single-UseA09Organ Preservation Solutions and ContainersA10Abdominal Ostomy DevicesA11Sample Collection SwabsA12Sample Collection SpatulasA13Applicators for Drugs and Medical Devices not Present in Other ClassesA99Devices for Administration, Withdrawal and Collection - Other

Source: European Commission, EMDN v2026 official release. Terminal codes are the only codes accepted in a EUDAMED device record. EMDN is a nomenclature, not a risk classification. MDR/IVDR class is determined separately.