ICD-10-CM › L00-L99 › L60-L75 › L66 Cicatricial alopecia [scarring hair loss] › L66.1
L66.1
Lichen planopilaris
Not billableICD-10-CM diagnosis code.
This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.
Submit one of these 4 more specific codes instead:
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Lichen planopilaris
- FY2025 Stopped being billable
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from the L60-L75 section Disorders of skin appendages (L60-L75)
Excludes1 - never coded here
- congenital malformations of integument (Q84.-)
Codes in the same group
| Code | Description | Status |
|---|---|---|
| L66.0 | Pseudopelade | Valid |
| L66.2 | Folliculitis decalvans | Valid |
| L66.3 | Perifolliculitis capitis abscedens | Valid |
| L66.4 | Folliculitis ulerythematosa reticulata | Valid |
| L66.8 | Other cicatricial alopecia | Not billable |
| L66.9 | Cicatricial alopecia, unspecified | Valid |