ICD10
ICD-10 Code L66.8: Other cicatricial alopecia
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the skin and subcutaneous tissue (L00-L99).
When is it used?
- May be used when a clinician documents other cicatricial alopecia in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
12Diseases of the skin and subcutaneous tissue (L00-L99)
block
L60-L75Disorders of skin appendages
category
L66Cicatricial alopecia [scarring hair loss]
currentL66
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
Dermatologist
Sibling codes
Mapped diagnoses and classifications
SNOMED_CT 109441000119102high
Central centrifugal cicatricial alopecia
Source: SNOMED International ICD-10 map
SNOMED_CT 1176996009high
Lepromatous scarring alopecia
Source: SNOMED International ICD-10 map
SNOMED_CT 238923001high
Lipoedematous alopecia
Source: SNOMED International ICD-10 map
SNOMED_CT 403325003high
Postmenopausal frontal fibrosing alopecia
Source: SNOMED International ICD-10 map
SNOMED_CT 403727008high
Scarring alopecia caused by ionizing radiation
Source: SNOMED International ICD-10 map
SNOMED_CT 1256051004high
Scarring alopecia due to and following radiotherapy
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
L66.8
Replacement codes
L66.81 — Central centrifugal cicatricial alopeciaL66.89 — Other cicatricial alopecia
Common synonyms
Other cicatricial alopecia
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.