L66.1
Non-billableLichen planopilaris
Lichen planopilaris
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- congenital malformations of integument (Q84.-)
Excludes 2
Conditions not included here, but the patient may have both
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- lipomelanotic reticulosis (I89.8)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- viral warts (B07.-)
Child Codes (4)
Also Known As / Clinical Terms
Frequently Asked Questions
What is the ICD-10 code for lichen planopilaris?
The ICD-10-CM code for lichen planopilaris is L66.1. The full clinical description is "Lichen planopilaris". L66.1 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code L66.1 mean?
ICD-10-CM code L66.1 represents "Lichen planopilaris". It is classified under Chapter 12: Diseases of the Skin and Subcutaneous Tissue and is a non-billable header code. Use a more specific child code for billing purposes.
Is L66.1 a billable code?
No, L66.1 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under L66.1.
What chapter is L66.1 in?
L66.1 is in Chapter 12: Diseases of the Skin and Subcutaneous Tissue (codes L00-L99).
What codes cannot be used with L66.1?
L66.1 has Excludes1 notes indicating codes that cannot be used together with it, including: congenital malformations of integument (Q84.-).
What are the subcategories under L66.1?
L66.1 has 4 child codes, including: L66.10 (Lichen planopilaris, unspecified), L66.11 (Classic lichen planopilaris), L66.12 (Frontal fibrosing alopecia), L66.19 (Other lichen planopilaris).
What are the UMLS CUIs for L66.1?
L66.1 is linked to 1 UMLS Concept Unique Identifier: C5441647. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.