Which M04 codes can be used in a EUDAMED device record?

67 of the 86 codes listed under M04 (Special Dressings) are terminal and can be selected. The other 19 are branch headings that cannot.

How many M04 codes are catch-all entries?

9 terminal codes under M04 are "- Other" entries, 13% of the branch. The remaining 58 name a specific device type.

EMDN M04: Special Dressings

Complete hierarchy for EMDN group M04 in category M (Devices for General and Specialist Dressings): 67 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.

M04Special Dressings
- M0401Prepared Dressings
  - M040101Adhesive Dressings, with Absorbent Pad
    - M04010101Non-Woven Adhesive Dressings, with Absorbent PadMDR 96.9% Class I · n=1,948MDD 3 classes · n=163terminal
      Registered in EUDAMED under MDR with this code: 1,888 of 1,948 devices carry Class I on their registration (as of 8 Sep 2026).
      1,888 Class I (96.9%)
      60 Class IIa (3.0%)
      Registered in EUDAMED under MDD with this code, the 163 devices are split across classes (as of 8 Sep 2026).
      151 Class I (92.6%)
      10 Class IIb (6.1%)
      2 Class IIa (1.2%)
      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.
    - M04010102Polyurethane (or Other Material) Adhesive Dressings, with Absorbent PadMDR 3 classes · n=1,503MDD 3 classes · n=97terminal
      Registered in EUDAMED under MDR with this code, the 1,503 devices are split across classes (as of 8 Sep 2026).
      1,320 Class I (87.8%)
      92 Class IIa (6.1%)
      91 Class IIb (6.0%)
      Registered in EUDAMED under MDD with this code, the 97 devices are split across classes (as of 8 Sep 2026).
      76 Class I (78.3%)
      12 Class IIb (12.3%)
      9 Class IIa (9.2%)
      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.
    - M04010199Adhesive Dressings, with Absorbent Pad - OtherMDR 2 classes · n=1,731MDD 100.0% Class I · n=127terminal
      Registered in EUDAMED under MDR with this code, the 1,731 devices are split across classes (as of 8 Sep 2026).
      1,548 Class I (89.4%)
      183 Class IIa (10.5%)
      Registered in EUDAMED under MDD with this code: 127 of 127 devices carry Class I on their registration (as of 8 Sep 2026).
      127 Class I (100.0%)
      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.
  - M040102Fixing Dressings
    - M04010201Non-Woven Fixing DressingsMDR 98.0% Class I · n=453MDD 2 classes · n=72terminal
      Registered in EUDAMED under MDR with this code: 444 of 453 devices carry Class I on their registration (as of 8 Sep 2026).
      444 Class I (98.0%)
      9 Class IIa (1.9%)
      Registered in EUDAMED under MDD with this code, the 72 devices are split across classes (as of 8 Sep 2026).
      49 Class IIa (68.0%)
      23 Class I (31.9%)
      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.
    - M04010202Polyurethane Fixing DressingsMDR 2 classes · n=401MDD 100.0% Class I · n=81terminal
      Registered in EUDAMED under MDR with this code, the 401 devices are split across classes (as of 8 Sep 2026).
      342 Class I (85.2%)
      59 Class IIa (14.7%)
      Registered in EUDAMED under MDD with this code: 81 of 81 devices carry Class I on their registration (as of 8 Sep 2026).
      81 Class I (100.0%)
      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.
    - M04010203Fixation Silicone DressingsMDR 100.0% Class I · n=105terminal
      Registered in EUDAMED under MDR with this code: 105 of 105 devices carry Class I on their registration (as of 8 Sep 2026).
      105 Class I (100.0%)
      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.
    - M04010299Fixing Dressings - OtherMDR 95.6% Class I · n=324MDD 97.2% Class I · n=37terminal
      Registered in EUDAMED under MDR with this code: 310 of 324 devices carry Class I on their registration (as of 8 Sep 2026).
      310 Class I (95.6%)
      12 Class IIb (3.7%)
      1 Class IIa (0.3%)
      1 Class III (0.3%)
      Registered in EUDAMED under MDD with this code: 36 of 37 devices carry Class I on their registration (as of 8 Sep 2026).
      36 Class I (97.2%)
      1 Class IIa (2.7%)
      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.
  - M040199Prepared Dressings - OtherMDR 3 classes · n=63terminal
    Registered in EUDAMED under MDR with this code, the 63 devices are split across classes (as of 8 Sep 2026).
    47 Class I (74.6%)
    13 Class III (20.6%)
    3 Class IIa (4.7%)
    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.
- M0402Non-Adhesive Absorbent Dressings
  - M040201Absorbent Dressings with Cellulose Pad and Non-Woven WrapsMDR 97.0% Class I · n=400terminal
    Registered in EUDAMED under MDR with this code: 388 of 400 devices carry Class I on their registration (as of 8 Sep 2026).
    388 Class I (97.0%)
    12 Class IIb (3.0%)
    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.
  - M040202Aluminium Non-Woven Absorbent DressingsMDR 100.0% Class I · n=50terminal
    Registered in EUDAMED under MDR with this code: 50 of 50 devices carry Class I on their registration (as of 8 Sep 2026).
    50 Class I (100.0%)
    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.
  - M040203Tracheostomy DressingsMDR 100.0% Class I · n=28terminal
    Registered in EUDAMED under MDR with this code: 28 of 28 devices carry Class I on their registration (as of 8 Sep 2026).
    28 Class I (100.0%)
    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.
  - M040204Non-Adherent Absorbent DressingsMDR 3 classes · n=1,129MDD 4 classes · n=93terminal
    Registered in EUDAMED under MDR with this code, the 1,129 devices are split across classes (as of 8 Sep 2026).
    936 Class I (82.9%)
    156 Class IIb (13.8%)
    37 Class IIa (3.2%)
    Registered in EUDAMED under MDD with this code, the 93 devices are split across classes (as of 8 Sep 2026).
    43 Class I (46.2%)
    43 Class IIb (46.2%)
    6 Class IIa (6.4%)
    1 Class III (1.0%)
    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.
  - M040299Non-Adhesive Absorbent Dressings - OtherMDR 2 classes · n=112MDD 2 classes · n=28terminal
    Registered in EUDAMED under MDR with this code, the 112 devices are split across classes (as of 8 Sep 2026).
    91 Class I (81.2%)
    21 Class IIa (18.7%)
    Registered in EUDAMED under MDD with this code, the 28 devices are split across classes (as of 8 Sep 2026).
    19 Class IIb (67.8%)
    9 Class I (32.1%)
    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. MDD and IVDD classes are the directive classification and can differ under MDR or IVDR.
- M0403Ophthalmic Dressings
  - M040301Eye Pads, Cotton or Non-Woven MaterialsMDR 100.0% Class I · n=168MDD 100.0% Class I · n=25terminal
    Registered in EUDAMED under MDR with this code: 168 of 168 devices carry Class I on their registration (as of 8 Sep 2026).
    168 Class I (100.0%)
    Registered in EUDAMED under MDD with this code: 25 of 25 devices carry Class I on their registration (as of 8 Sep 2026).
    25 Class I (100.0%)
    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.
  - M040302Sticks/Lancets/Strips for Ophthalmic Useterminal
  - M040303Orthoptic Eye PatchesMDR 100.0% Class I · n=33terminal
    Registered in EUDAMED under MDR with this code: 33 of 33 devices carry Class I on their registration (as of 8 Sep 2026).
    33 Class I (100.0%)
    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.
  - M040304Ophthalmic Dressings Containing Components of Human Originterminal
  - M040305Ophthalmic Dressings in the Form of Eye Drops/Gel/Creamsterminal
  - M040306Ophthalmic ProtectorsMDR 100.0% Class I · n=25terminal
    Registered in EUDAMED under MDR with this code: 25 of 25 devices carry Class I on their registration (as of 8 Sep 2026).
    25 Class I (100.0%)
    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.
  - M040399Ophthalmic Dressings - OtherMDR 100.0% Class I · n=55terminal
    Registered in EUDAMED under MDR with this code: 55 of 55 devices carry Class I on their registration (as of 8 Sep 2026).
    55 Class I (100.0%)
    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.
- M0404Dressings for Wounds, Sores and Ulcerations
  - M040401Saline Dressings
    - M04040101Saline Dressings, Non-CombinedMDR 2 classes · n=97terminal
      Registered in EUDAMED under MDR with this code, the 97 devices are split across classes (as of 8 Sep 2026).
      75 Class IIa (77.3%)
      22 Class I (22.6%)
      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.
    - M04040102Saline Dressings in Combination with Other Substancesterminal
  - M040402Alginate Dressings
    - M04040201Alginate Dressings, Non-CombinedMDR 3 classes · n=145MDD 100.0% Class IIb · n=27terminal
      Registered in EUDAMED under MDR with this code, the 145 devices are split across classes (as of 8 Sep 2026).
      98 Class IIa (67.5%)
      44 Class IIb (30.3%)
      3 Class I (2.0%)
      Registered in EUDAMED under MDD with this code: 27 of 27 devices carry Class IIb on their registration (as of 8 Sep 2026).
      27 Class IIb (100.0%)
      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.
    - M04040202Alginate Dressings, Combined with Other Substancesterminal
  - M040403Hydrocolloid Dressings
    - M04040301Hydrocolloid Dressings, Non-CombinedMDR 3 classes · n=2,692MDD 3 classes · n=77terminal
      Registered in EUDAMED under MDR with this code, the 2,692 devices are split across classes (as of 8 Sep 2026).
      2,238 Class IIa (83.1%)
      303 Class I (11.2%)
      151 Class IIb (5.6%)
      Registered in EUDAMED under MDD with this code, the 77 devices are split across classes (as of 8 Sep 2026).
      41 Class IIb (53.2%)
      31 Class IIa (40.2%)
      5 Class I (6.4%)
      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.
    - M04040302Hydrocolloid Dressings, Combined with Other Substancesterminal
  - M040404Cellulose and/or Modified Cellulose Dressings, Non-Combined or Combined with Other SubstancesMDR 2 classes · n=236MDD 2 classes · n=50terminal
    Registered in EUDAMED under MDR with this code, the 236 devices are split across classes (as of 8 Sep 2026).
    137 Class IIb (58.0%)
    99 Class I (41.9%)
    Registered in EUDAMED under MDD with this code, the 50 devices are split across classes (as of 8 Sep 2026).
    45 Class IIb (90.0%)
    5 Class III (10.0%)
    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.
  - M040405Hydrogel Dressings
    - M04040501Hydrogel Dressings, Non-CombinedMDR 3 classes · n=304MDD 3 classes · n=119terminal
      Registered in EUDAMED under MDR with this code, the 304 devices are split across classes (as of 8 Sep 2026).
      182 Class IIa (59.8%)
      75 Class IIb (24.6%)
      47 Class I (15.4%)
      Registered in EUDAMED under MDD with this code, the 119 devices are split across classes (as of 8 Sep 2026).
      92 Class IIb (77.3%)
      21 Class IIa (17.6%)
      6 Class I (5.0%)
      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.
    - M04040502Hydrogel Dressings, Combined with Other SubstancesMDR 3 classes · n=50terminal
      Registered in EUDAMED under MDR with this code, the 50 devices are split across classes (as of 8 Sep 2026).
      22 Class I (44.0%)
      16 Class IIb (32.0%)
      12 Class IIa (24.0%)
      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.
  - M040406Polyurethane Dressings
    - M04040601Polyurethane Dressings, Non-CombinedMDR 3 classes · n=512MDD 3 classes · n=130terminal
      Registered in EUDAMED under MDR with this code, the 512 devices are split across classes (as of 8 Sep 2026).
      273 Class IIb (53.3%)
      141 Class I (27.5%)
      98 Class IIa (19.1%)
      Registered in EUDAMED under MDD with this code, the 130 devices are split across classes (as of 8 Sep 2026).
      100 Class IIb (76.9%)
      19 Class I (14.6%)
      11 Class IIa (8.4%)
      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.
    - M04040602Polyurethane Dressings, Combined with Other SubstancesMDR 99.8% Class IIb · n=528MDD 3 classes · n=42terminal
      Registered in EUDAMED under MDR with this code: 527 of 528 devices carry Class IIb on their registration (as of 8 Sep 2026).
      527 Class IIb (99.8%)
      1 Class I (0.1%)
      Registered in EUDAMED under MDD with this code, the 42 devices are split across classes (as of 8 Sep 2026).
      38 Class IIb (90.4%)
      3 Class III (7.1%)
      1 Class I (2.3%)
      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.
  - M040407Silicone Dressings
    - M04040701Silicone Dressings, Non-CombinedMDR 3 classes · n=897MDD 3 classes · n=112terminal
      Registered in EUDAMED under MDR with this code, the 897 devices are split across classes (as of 8 Sep 2026).
      447 Class I (49.8%)
      365 Class IIb (40.6%)
      85 Class IIa (9.4%)
      Registered in EUDAMED under MDD with this code, the 112 devices are split across classes (as of 8 Sep 2026).
      84 Class IIb (75.0%)
      27 Class I (24.1%)
      1 Class IIa (0.8%)
      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.
    - M04040702Silicone Dressings, Combined with Other SubstancesMDR 3 classes · n=133MDD 3 classes · n=61terminal
      Registered in EUDAMED under MDR with this code, the 133 devices are split across classes (as of 8 Sep 2026).
      71 Class I (53.3%)
      61 Class IIb (45.8%)
      1 Class IIa (0.7%)
      Registered in EUDAMED under MDD with this code, the 61 devices are split across classes (as of 8 Sep 2026).
      38 Class I (62.2%)
      20 Class IIb (32.7%)
      3 Class IIa (4.9%)
      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.
  - M040408Silver Dressings
    - M04040801Silver Dressings, Non-CombinedMDD 100.0% Class III · n=81terminal
      Registered in EUDAMED under MDD with this code: 81 of 81 devices carry Class III on their registration (as of 8 Sep 2026).
      81 Class III (100.0%)
      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.
    - M04040802Silver Dressings, Combined with Other SubstancesMDD 100.0% Class III · n=33terminal
      Registered in EUDAMED under MDD with this code: 33 of 33 devices carry Class III on their registration (as of 8 Sep 2026).
      33 Class III (100.0%)
      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.
  - M040409Activated Charcoal Dressings
    - M04040901Activated Charcoal Dressings, Non-Combinedterminal
    - M04040902Activated Charcoal Dressings, Combined with Other Substancesterminal
  - M040410Animal-Derived Collagen Dressings
    - M04041001Animal-Derived Collagen Dressings, Non-CombinedMDR 100.0% Class III · n=22MDD 100.0% Class III · n=35terminal
      Registered in EUDAMED under MDR with this code: 22 of 22 devices carry Class III on their registration (as of 8 Sep 2026).
      22 Class III (100.0%)
      Registered in EUDAMED under MDD with this code: 35 of 35 devices carry Class III on their registration (as of 8 Sep 2026).
      35 Class III (100.0%)
      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.
    - M04041002Animal-Derived Collagen Dressings, Combined with Other SubstancesMDD 100.0% Class III · n=44terminal
      Registered in EUDAMED under MDD with this code: 44 of 44 devices carry Class III on their registration (as of 8 Sep 2026).
      44 Class III (100.0%)
      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.
  - M040411Instrument Dressingsterminal
  - M040412Antiseptics-Based DressingsMDD 96.4% Class III · n=196terminal
    Registered in EUDAMED under MDD with this code: 189 of 196 devices carry Class III on their registration (as of 8 Sep 2026).
    189 Class III (96.4%)
    7 Class IIa (3.5%)
    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.
  - M040413Interactive DressingsMDR 100.0% Class IIb · n=84terminal
    Registered in EUDAMED under MDR with this code: 84 of 84 devices carry Class IIb on their registration (as of 8 Sep 2026).
    84 Class IIb (100.0%)
    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.
  - M040414Multi-Layer Absorbent DressingsMDR 98.6% Class IIb · n=226MDD 2 classes · n=57terminal
    Registered in EUDAMED under MDR with this code: 223 of 226 devices carry Class IIb on their registration (as of 8 Sep 2026).
    223 Class IIb (98.6%)
    3 Class I (1.3%)
    Registered in EUDAMED under MDD with this code, the 57 devices are split across classes (as of 8 Sep 2026).
    54 Class IIb (94.7%)
    3 Class I (5.2%)
    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.
  - M040415Dressings in Solutions, Emulsions, Gels, Powders
    - M04041501Dressings in Solutions, Emulsions, Gels, Powders with Herbal ComponentsMDR 2 classes · n=43terminal
      Registered in EUDAMED under MDR with this code, the 43 devices are split across classes (as of 8 Sep 2026).
      28 Class I (65.1%)
      15 Class IIa (34.8%)
      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.
    - M04041502Dressings in Solutions, Emulsions, Gels, Powders with Animal Componentsterminal
    - M04041503Dressings in Solutions, Emulsions, Gels, Powders with Synthetic ComponentsMDR 4 classes · n=362MDD 4 classes · n=92terminal
      Registered in EUDAMED under MDR with this code, the 362 devices are split across classes (as of 8 Sep 2026).
      291 Class I (80.3%)
      35 Class III (9.6%)
      20 Class IIb (5.5%)
      16 Class IIa (4.4%)
      Registered in EUDAMED under MDD with this code, the 92 devices are split across classes (as of 8 Sep 2026).
      52 Class IIa (56.5%)
      34 Class IIb (36.9%)
      4 Class III (4.3%)
      2 Class I (2.1%)
      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. MDD and IVDD classes are the directive classification and can differ under MDR or IVDR.
  - M040416Hydrophobic DressingsMDR 2 classes · n=71terminal
    Registered in EUDAMED under MDR with this code, the 71 devices are split across classes (as of 8 Sep 2026).
    67 Class IIb (94.3%)
    4 Class I (5.6%)
    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.
  - M040499Dressings for Wounds, Sores and Ulcerations - OtherMDR 3 classes · n=1,192MDD 4 classes · n=361terminal
    Registered in EUDAMED under MDR with this code, the 1,192 devices are split across classes (as of 8 Sep 2026).
    598 Class IIb (50.1%)
    499 Class I (41.8%)
    95 Class IIa (7.9%)
    Registered in EUDAMED under MDD with this code, the 361 devices are split across classes (as of 8 Sep 2026).
    166 Class IIb (45.9%)
    139 Class IIa (38.5%)
    49 Class III (13.5%)
    7 Class I (1.9%)
    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.
- M0405Haemostatic Dressings
  - M040501Polysaccharide Haemostatic DressingsMDR 4 classes · n=323MDD 99.7% Class III · n=438terminal
    Registered in EUDAMED under MDR with this code, the 323 devices are split across classes (as of 8 Sep 2026).
    278 Class III (86.0%)
    35 Class I (10.8%)
    7 Class IIb (2.1%)
    3 Class IIa (0.9%)
    Registered in EUDAMED under MDD with this code: 437 of 438 devices carry Class III on their registration (as of 8 Sep 2026).
    437 Class III (99.7%)
    1 Class I (0.2%)
    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.
  - M040502Animal Collagen Haemostatic Dressingsterminal
  - M040503Gelatine Sponge Haemostatic DressingsMDD 100.0% Class III · n=156terminal
    Registered in EUDAMED under MDD with this code: 156 of 156 devices carry Class III on their registration (as of 8 Sep 2026).
    156 Class III (100.0%)
    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.
  - M040504Inorganic Haemostatic DevicesMDR 2 classes · n=28MDD 3 classes · n=42terminal
    Registered in EUDAMED under MDR with this code, the 28 devices are split across classes (as of 8 Sep 2026).
    26 Class IIa (92.8%)
    2 Class I (7.1%)
    Registered in EUDAMED under MDD with this code, the 42 devices are split across classes (as of 8 Sep 2026).
    30 Class IIa (71.4%)
    11 Class III (26.1%)
    1 Class I (2.3%)
    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.
  - M040505Haemostatic Devices Based on Clotting Factors
    - M04050501Hemostatic Dressings Based on Coagulation Factors of Animal Originterminal
    - M04050502Hemostatic Dressings Based on Coagulation Factors of Human Originterminal
  - M040506Hemostatic Waxesterminal
  - M040599Haemostatic Dressings - OtherMDR 3 classes · n=148MDD 4 classes · n=200terminal
    Registered in EUDAMED under MDR with this code, the 148 devices are split across classes (as of 8 Sep 2026).
    125 Class I (84.4%)
    14 Class IIa (9.4%)
    9 Class III (6.0%)
    Registered in EUDAMED under MDD with this code, the 200 devices are split across classes (as of 8 Sep 2026).
    142 Class I (71.0%)
    33 Class III (16.5%)
    16 Class IIb (8.0%)
    9 Class IIa (4.5%)
    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.
- M0406Dressings for the Prevention of Post-Operative AdhesionsMDD 98.2% Class III · n=58terminal
  Registered in EUDAMED under MDD with this code: 57 of 58 devices carry Class III on their registration (as of 8 Sep 2026).
  - 57 Class III (98.2%)
  - 1 Class I (1.7%)
  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.
- M0407Special Pads
  - M040701Nasal PadsMDR 100.0% Class I · n=37terminal
    Registered in EUDAMED under MDR with this code: 37 of 37 devices carry Class I on their registration (as of 8 Sep 2026).
    37 Class I (100.0%)
    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.
  - M040702Surgical PadsMDD 100.0% Class III · n=416terminal
    Registered in EUDAMED under MDD with this code: 416 of 416 devices carry Class III on their registration (as of 8 Sep 2026).
    416 Class III (100.0%)
    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.
  - M040703Wound Debridement Padsterminal
  - M040799Special Pads - OtherMDR 99.4% Class I · n=343MDD 3 classes · n=31terminal
    Registered in EUDAMED under MDR with this code: 341 of 343 devices carry Class I on their registration (as of 8 Sep 2026).
    341 Class I (99.4%)
    2 Class IIa (0.5%)
    Registered in EUDAMED under MDD with this code, the 31 devices are split across classes (as of 8 Sep 2026).
    21 Class IIa (67.7%)
    5 Class I (16.1%)
    5 Class III (16.1%)
    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. MDD and IVDD classes are the directive classification and can differ under MDR or IVDR.
- M0408Dressings for Burns OnlyMDR 4 classes · n=26MDD 3 classes · n=112terminal
  Registered in EUDAMED under MDR with this code, the 26 devices are split across classes (as of 8 Sep 2026).
  - 12 Class IIb (46.1%)
  - 11 Class IIa (42.3%)
  - 2 Class III (7.6%)
  - 1 Class I (3.8%)
  Registered in EUDAMED under MDD with this code, the 112 devices are split across classes (as of 8 Sep 2026).
  - 106 Class IIb (94.6%)
  - 4 Class IIa (3.5%)
  - 2 Class I (1.7%)
  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.
- M0409Dressings for Photo- and Thermotherapy in the Form of Gels and SolutionsMDR 2 classes · n=30terminal
  Registered in EUDAMED under MDR with this code, the 30 devices are split across classes (as of 8 Sep 2026).
  - 28 Class I (93.3%)
  - 2 Class IIb (6.6%)
  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.
- M0410Dressings for Nails in the Form of Liquids, Gels and CreamsMDR 2 classes · n=42terminal
  Registered in EUDAMED under MDR with this code, the 42 devices are split across classes (as of 8 Sep 2026).
  - 31 Class IIa (73.8%)
  - 11 Class I (26.1%)
  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.
- M0411Osmotic Dressingsterminal
- M0412Dressings for the Treatment of Warts, Corns and CallusesMDR 4 classes · n=221MDD 2 classes · n=40terminal
  Registered in EUDAMED under MDR with this code, the 221 devices are split across classes (as of 8 Sep 2026).
  - 130 Class IIa (58.8%)
  - 37 Class III (16.7%)
  - 29 Class I (13.1%)
  - 25 Class IIb (11.3%)
  Registered in EUDAMED under MDD with this code, the 40 devices are split across classes (as of 8 Sep 2026).
  - 20 Class IIa (50.0%)
  - 20 Class III (50.0%)
  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.
- M0499Special Dressings - OtherMDR 3 classes · n=318MDD 4 classes · n=45terminal
  Registered in EUDAMED under MDR with this code, the 318 devices are split across classes (as of 8 Sep 2026).
  - 272 Class I (85.5%)
  - 32 Class IIa (10.0%)
  - 14 Class IIb (4.4%)
  Registered in EUDAMED under MDD with this code, the 45 devices are split across classes (as of 8 Sep 2026).
  - 20 Class I (44.4%)
  - 15 Class III (33.3%)
  - 8 Class IIa (17.7%)
  - 2 Class IIb (4.4%)
  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.

How M04 is structured

terminal codes, selectable in a device record

branch headings, not selectable

name a specific device type

13%

fallback entries: Other and Accessories

The Special Dressings branch runs 3 levels deep. 19 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 67 codes marked terminal.

9 terminal codes are “- Other” entries, 13% 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 M0404 (Dressings for Wounds, Sores and Ulcerations), holding 28 of the 67 terminal codes.

Frequently asked questions

Which M04 codes can be used in a EUDAMED device record?: 67 of the 86 codes listed under M04 (Special Dressings) are terminal and can be selected. The other 19 are branch headings that cannot.
How deep is the M04 hierarchy?: The M04 branch runs 3 levels below the group code. Its largest sub-branch is M0404 (Dressings for Wounds, Sores and Ulcerations), which holds 28 of the 67 terminal codes.
How many M04 codes are catch-all entries?: 9 terminal codes under M04 are "- Other" entries, 13% of the branch. The remaining 58 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 M

M01Cotton and Synthetic Wadding M02Gauzes M03Bandages M05Plasters M90Devices for General and Specialist Dressings - Various

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.