EMDN J03: Auditory Active-Implantable Devices

Complete hierarchy for EMDN group J03 in category J (Active-Implantable Devices): 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.

  • J03Auditory Active-Implantable Devices
    • J0301Cochlear Implantsterminal
    • J0302Middle Ear Implantsterminal
    • J0303Auditory Brainstem Implantsterminal
    • J0304Bone Conduction Implantsterminal
    • J0380Auditory Active-Implantable Devices - AccessoriesMDR 95.9% Class III · n=99terminal

      Registered in EUDAMED under MDR with this code: 95 of 99 devices carry Class III on their registration (as of 8 Sep 2026).

      • 95 Class III (95.9%)
      • 4 Class IIa (4.0%)

      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.

    • J0399Auditory Active-Implantable Devices - Otherterminal

How J03 is structured

6
terminal codes, selectable in a device record
0
branch headings, not selectable
4
name a specific device type
33%
fallback entries: Other and Accessories

The Auditory Active-Implantable Devices branch runs 1 level deep. Every code below is terminal.

1 terminal code is an “- Other” entry and 1 is an “- Accessories” entry, 33% 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 J03 codes can be used in a EUDAMED device record?
All 6 codes listed under J03 (Auditory Active-Implantable Devices) are terminal, so any of them can be selected in a device record.
How deep is the J03 hierarchy?
The J03 branch runs 1 level below the group code.
How many J03 codes are catch-all entries?
1 terminal code under J03 is an "- Other" entry and 1 is an "- Accessories" entry, 33% of the branch. The remaining 4 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 J

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.