ICD-10 Code for Alopecia
Also indexed as (hereditaria) (seborrheica)
The ICD-10-CM code for alopecia is L65.9 — Nonscarring hair loss, unspecified. This is the code the Alphabetic Index gives for alopecia with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
L65.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which alopecia code should you use?
The Alphabetic Index lists 19 codes under Alopecia. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| androgenic | L64.9 | Androgenic alopecia, unspecified | |
| areata | L63.9 | Alopecia areata, unspecified | |
| cicatricial | L66.9 | Cicatricial alopecia, unspecified | |
| circumscripta | L63.9 | Alopecia areata, unspecified | |
| congenital, congenitalis | Q84.0 | Congenital alopecia | |
| due to cytotoxic drugs NEC | L65.8 | Other specified nonscarring hair loss | |
| frontal fibrosing | L66.12 | Frontal fibrosing alopecia | |
| mucinosa | L65.2 | Alopecia mucinosa | |
| postinfective NEC | L65.8 | Other specified nonscarring hair loss | |
| postpartum | L65.0 | Telogen effluvium | |
| premature | L64.8 | Other androgenic alopecia | |
| specific | A51.32 | Syphilitic alopecia | |
| specified NEC | L65.8 | Other specified nonscarring hair loss | |
| syphilitic | A51.32 | Syphilitic alopecia | |
| totalis | L63.0 | Alopecia (capitis) totalis | |
| universalis | L63.1 | Alopecia universalis | |
| X-ray | L58.1 | Chronic radiodermatitis |
Alopecia androgenic
Alopecia areata
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources