ICD10BillableValid for clinical use
ICD-10 Code L91.8: Other hypertrophic disorders of the skin
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. 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 hypertrophic disorders of the skin in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
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.
Code hierarchy
chapter
12Diseases of the skin and subcutaneous tissue (L00-L99)
block
L80-L99Other disorders of the skin and subcutaneous tissue
category
L91Hypertrophic disorders of skin
currentL91
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
Dermatologist
Sibling codes
Coverage-related procedures and services
CPT 17111high
DESTRUCTION (EG, LASER SURGERY, ELECTROSURGERY, CRYOSURGERY, CHEMOSURGERY, SURGICAL CURETTEMENT), OF BENIGN LESIONS OTHER THAN SKIN TAGS OR CUTANEOUS VASCULAR PROLIFERATIVE LESIONS; 15 OR MORE LESIONS
Source: CMS coverage guidance
CPT 17110high
DESTRUCTION (EG, LASER SURGERY, ELECTROSURGERY, CRYOSURGERY, CHEMOSURGERY, SURGICAL CURETTEMENT), OF BENIGN LESIONS OTHER THAN SKIN TAGS OR CUTANEOUS VASCULAR PROLIFERATIVE LESIONS; UP TO 14 LESIONS
Source: CMS coverage guidance
CPT 17107high
DESTRUCTION OF CUTANEOUS VASCULAR PROLIFERATIVE LESIONS (EG, LASER TECHNIQUE); 10.0 TO 50.0 SQ CM
Source: CMS coverage guidance
CPT 17106high
DESTRUCTION OF CUTANEOUS VASCULAR PROLIFERATIVE LESIONS (EG, LASER TECHNIQUE); LESS THAN 10 SQ CM
Source: CMS coverage guidance
CPT 17108high
DESTRUCTION OF CUTANEOUS VASCULAR PROLIFERATIVE LESIONS (EG, LASER TECHNIQUE); OVER 50.0 SQ CM
Source: CMS coverage guidance
CPT 11420high
EXCISION, BENIGN LESION INCLUDING MARGINS, EXCEPT SKIN TAG (UNLESS LISTED ELSEWHERE), SCALP, NECK, HANDS, FEET, GENITALIA; EXCISED DIAMETER 0.5 CM OR LESS
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 238893005high
Fat hypertrophy
Source: SNOMED International ICD-10 map
SNOMED_CT 403662008high
Fat hypertrophy due to injection of drug or medicament
Source: SNOMED International ICD-10 map
SNOMED_CT 21985009high
Fibrohistiocytic proliferation of the skin
Source: SNOMED International ICD-10 map
SNOMED_CT 1142258005high
Hypertrophy of subcutaneous fatty tissue of lower limb
Source: SNOMED International ICD-10 map
SNOMED_CT 238894004high
Insulin lipohypertrophy
Source: SNOMED International ICD-10 map
SNOMED_CT 403860002high
Multiple axillary skin tags
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
L91.8
Common synonyms
Other hypertrophic disorders of the skin
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.