Which Y21 codes can be used in a EUDAMED device record?

46 of the 60 codes listed under Y21 (Communication and Information Management Aids) are terminal and can be selected. The other 14 are branch headings that cannot.

How deep is the Y21 hierarchy?

The Y21 branch runs 4 levels below the group code. Its largest sub-branch is Y2145 (Hearing Aids), which holds 13 of the 46 terminal codes.

How many Y21 codes are catch-all entries?

10 terminal codes under Y21 are "- Other" entries and 1 is an "- Accessories" entry, 24% of the branch. The remaining 35 name a specific device type.

EMDN Y21: Communication and Information Management Aids

Complete hierarchy for EMDN group Y21 in category Y (Devices for Persons with Disabilities not Included in Other Categories): 46 terminal codes, EMDN v2026. Terminal codes are the ones accepted in a EUDAMED device record.

Y21Communication and Information Management Aids
- Y2103Optical Aids
  - Y210306Prismatic Ophthalmic Lenses for Raising and Lowering the Eye with Prosthesesterminal
  - Y210321Far Sightedness Telescopic Systems/Spectaclesterminal
  - Y210324Near Sightedness Telescopic Systems/Spectaclesterminal
  - Y210330Magnifying Achromatic Doublet Lensesterminal
  - Y210333Prismatic Spectaclesterminal
  - Y210336Occlusion and Anti-Radiation Filtersterminal
  - Y210399Optical Aids - Otherterminal
- Y2106Optical Electronic Aids
  - Y210603Video Magnifiersterminal
  - Y210606Ocr Systemsterminal
  - Y210609Magnifiers for Personal Computersterminal
  - Y210699Electronic Optical Aids - Otherterminal
- Y2109Personal Computer Input and Output Peripheral Equipment
  - Y210905External Sensor Interfacesterminal
  - Y210906Mouse and Keyboard Emulatorsterminal
  - Y210915Vocal Synthesis Devicesterminal
  - Y210924Arm Supportsterminal
  - Y210999Personal Computer Input and Output Peripheral Equipment - Otherterminal
- Y2115Writing Machines and Text Processing Systems
  - Y211518Writing Softwareterminal
  - Y211599Writing Machines and Text Processing Systems - Otherterminal
- Y2127Non-Optical Reading Aids
  - Y212703Page-Turnersterminal
  - Y212706Bookreststerminal
- Y2136Telephones and Telephoning Aids
  - Y213603Easy Access Telephonesterminal
  - Y213609Telephone Communicatorsterminal
  - Y213624Telephone Handset Replacement Devices and Call Signalersterminal
  - Y213699Telephones and Telephoning Aids - Otherterminal
- Y2139Sound Transmission Systems
  - Y213924Mf Receiver-Transmittersterminal
  - Y213999Sound Transmission Systems - Otherterminal
- Y2142Interpersonal Comunication Devices
  - Y214209Alphabetic and Symbolic Communicatorsterminal
  - Y214212Voice Generatorsterminal
  - Y214224Augmentative Softwareterminal
  - Y214299Devices for Interpersonal Comunication - Otherterminal
- Y2145Hearing Aids
  - Y214506Air Conduction Hearing Aids
    - Y21450601Behind-the-Ear Hearing Aids (Btes)
      - Y2145060101Behind-the-Ear Hearing Aids with Receiver in the Device (Bte)terminal
      - Y2145060102Behind-the-Ear Hearing Aids with Receiver in the Canal (Ric, Rite)terminal
    - Y21450602In-the-Ear Hearing Aids (Ites)
      - Y2145060201Hearing Aid in the-Ear (Ite)terminal
      - Y2145060202Hearing Aids in-the-Canal (Itc)terminal
      - Y2145060203Hearing Aids Completely-in-the-Canal (Cic)terminal
      - Y2145060204Hearing Aids Invisible-in-the-Canal (Iic)terminal
    - Y21450603Box Hearing Aidsterminal
  - Y214509Bone Conduction Hearing Aids
    - Y21450901Spectacle Hearing Aidsterminal
    - Y21450902Headband Hearing Aidsterminal
    - Y21450903Hearing Aids with Elastic Bandterminal
    - Y21450904Hearing Aids Using Adhesive Patchterminal
  - Y214580Hearing Aids or Hearing Devices - Accessoriesterminal
  - Y214599Hearing Aids - Otherterminal
- Y2151Alarm Systems + Signalling, Indication and Reminder Aids
  - Y215112Clocks for Persons with Disabilitiesterminal
  - Y215199Alarm Systems + Signaling, Indication and Reminder Aids - Otherterminal
- Y2199Communication and Information Management Aids - Otherterminal

How Y21 is structured

terminal codes, selectable in a device record

branch headings, not selectable

name a specific device type

24%

fallback entries: Other and Accessories

The Communication and Information Management Aids branch runs 4 levels deep. 14 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 46 codes marked terminal.

10 terminal codes are “- Other” entries and 1 is an “- Accessories” entry, 24% 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.

The largest sub-branch is Y2145 (Hearing Aids), holding 13 of the 46 terminal codes.

Frequently asked questions

Which Y21 codes can be used in a EUDAMED device record?: 46 of the 60 codes listed under Y21 (Communication and Information Management Aids) are terminal and can be selected. The other 14 are branch headings that cannot.
How deep is the Y21 hierarchy?: The Y21 branch runs 4 levels below the group code. Its largest sub-branch is Y2145 (Hearing Aids), which holds 13 of the 46 terminal codes.
How many Y21 codes are catch-all entries?: 10 terminal codes under Y21 are "- Other" entries and 1 is an "- Accessories" entry, 24% of the branch. The remaining 35 name a specific device type.

Classifying more than a handful of devices?

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Other groups in category Y

Y05Abilities Learning and Training Devices Y06External Prostheses and Orthoses Y09Personal Care Aids Y12Personal Mobility Devices Y15Domestic Activities Aids Y18Aids, Furniture and Home Aids for Persons with Disabilities Y24Object Manipulation Devices Y99Devices for Persons with Disabilities not Included in Other Categories - 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.