L91
Non-billableHypertrophic disorders of skin
Hypertrophic disorders of skin
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •lipomelanotic reticulosisI89.8
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •systemic connective tissue disordersM30-M36
- •viral wartsB07
Child Codes (3)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(5)
Frequently Asked Questions
What is the ICD-10 code for hypertrophic disorders of skin?
The ICD-10-CM code for hypertrophic disorders of skin is L91. The full clinical description is "Hypertrophic disorders of skin". L91 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code L91 mean?
ICD-10-CM code L91 represents “Hypertrophic disorders of skin”. 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 L91 a billable code?
No, L91 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under L91.
What chapter is L91 in?
L91 is in Chapter 12: Diseases of the Skin and Subcutaneous Tissue (codes L00-L99).
What are the subcategories under L91?
L91 has 3 child codes, including: L91.0 (Hypertrophic scar), L91.8 (Other hypertrophic disorders of the skin), L91.9 (Hypertrophic disorder of the skin, unspecified).
What are the UMLS CUIs for L91?
L91 is linked to 1 UMLS Concept Unique Identifier: C0263630. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does L91 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like hypertrophic disorders of skin affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of L91?
L91 maps to the ICD-11 code: EE6Z (Fibromatosis of skin or soft tissue, unspecified).
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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.