L65.1 Anagen effluvium

Billable ICD-10-CM code, FY2026.

Applies from L65 Other nonscarring hair loss

Excludes1 (never code together)

• trichotillomania (F63.3)

Use additional code

• code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

MS-DRG index

Defines the logic of DRG(s) 606-607 in MDC 09.

Approximate ICD-9-CM (GEMs)

• 704.09 Other alopecia (approximate)

Diagnosis Index entries for L65.1

• Effluvium › anagen

Nearby codes

• L65 Other nonscarring hair loss
• L65.0 Telogen effluvium
• L65.1 Anagen effluvium (this code)
• L65.2 Alopecia mucinosa
• L65.8 Other specified nonscarring hair loss
• L65.9 Nonscarring hair loss, unspecified