NPI Atlas

L65.1 – Anagen effluvium

ICD-10-CM 2027 diagnosis code · Disorders of skin appendages

Billable code

ICD-10-CM code L65.1

Code: L65.1 (claims format: L651)
Description: Anagen effluvium
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 12. Diseases of the skin and subcutaneous tissue (L00-L99)
Block: L60-L75 Disorders of skin appendages
Parent codes: L65

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

L65 – Other nonscarring hair loss

Excludes1 (not coded here):

trichotillomania (F63.3)

Use additional code:

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

Block L60-L75

Excludes1 (not coded here):

congenital malformations of integument (Q84.-)

Index terms for L65.1

Entries in the ICD-10-CM alphabetic index that lead to this code:

Effluvium, anagen

Related codes in L65

L65.0 – Telogen effluviumBillable
L65.2 – Alopecia mucinosaBillable
L65.8 – Other specified nonscarring hair lossBillable
L65.9 – Nonscarring hair loss, unspecifiedBillable

Frequently asked questions

What is ICD-10 code L65.1?

L65.1 is the ICD-10-CM code for anagen effluvium, in the block L60-L75 (Disorders of skin appendages).

Is L65.1 a billable code?

Yes. L65.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does L65.1 belong to?

It belongs to category L65 – Other nonscarring hair loss.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.