ICD-10-CM 2027
ICD-10 code for Anagen effluvium
From the official ICD-10-CM alphabetic index entry “Effluvium › anagen”. Page updated September 29, 2026.
About coding Anagen effluvium
The ICD-10-CM code for Anagen effluvium is L65.1 (Anagen effluvium).
Within L65 (other nonscarring hair loss), L65.1 is specifically for Anagen effluvium. Related codes cover Telogen effluvium (L65.0), alopecia mucinosa (L65.2), other specified nonscarring hair loss (L65.8) and nonscarring hair loss, unspecified (L65.9).
Use an additional code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about Anagen effluvium ICD-10 codes
What is the ICD-10 code for Anagen effluvium?
- L65.1 — Anagen effluvium.
Is L65.1 billable?
- Yes. L65.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L65.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L65.1 as a principal diagnosis.
Is L65.1 a CC or MCC?
- No. L65.1 is neither a CC nor an MCC under MS-DRG v44.0.