WIn Vitro Diagnostic Medical Devices

EMDN category W contains 3 groups and 1,935 terminal codes (EMDN v2026). Select a group for its complete code hierarchy.

How category W is distributed

The 3 groups in this category are not evenly sized. W01 (Reagents) alone holds 1,512 terminal codes, 78% of the category. Hierarchies here run up to 5 levels below a group code, and 16% of the category’s terminal codes are “- Other” or “- Accessories” fallbacks rather than named device types.

Frequently asked questions

How many codes are in EMDN category W?
Category W (In Vitro Diagnostic Medical Devices) holds 1,935 terminal codes spread across 3 groups. Terminal codes are the ones a EUDAMED device record accepts. EMDN v2026.
Which W group has the most codes?
W01 (Reagents), with 1,512 terminal codes, or 78% of everything in category W.
How much of category W is catch-all codes?
304 of the 1,935 terminal codes in category W are "- Other" or "- Accessories" entries, 16% of the category. Those are residual slots for devices the named codes do not cover, so it is worth ruling out the specific codes in a group before settling on one.

Classifying more than a handful of devices?

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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.