ICD-11 MMS 2026-01
Alopecia areata
Description
A microscopically inflammatory, usually reversible, patchy hair loss occurring in sharply defined areas and usually involving the beard or scalp
Child codes
ED70.20 – Patchy alopecia areata of scalpED70.21 – Alopecia totalisED70.2Y – Other specified forms of alopecia areataED70.2Z – Alopecia areata, unspecified
Sibling codes
ED70.0 – Male pattern hair lossED70.1 – Female pattern hair lossED70.3 – Telogen effluviumED70.4 – Anagen effluviumED70.5 – Scarring alopeciaED70.Y – Other specified alopecia or hair lossED70.Z – Alopecia, unspecified
Part of: ED70: Alopecia or hair loss › 14: Diseases of the skin