ICD10BillableValid for clinical use
ICD-10 Code L85.8: Other specified epidermal thickening
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 specified epidermal thickening 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
L85Other epidermal thickening
currentL85
Official coding notes
Inclusion terms
- Cutaneous horn
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
Related codes
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 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
CPT 11421high
EXCISION, BENIGN LESION INCLUDING MARGINS, EXCEPT SKIN TAG (UNLESS LISTED ELSEWHERE), SCALP, NECK, HANDS, FEET, GENITALIA; EXCISED DIAMETER 0.6 TO 1.0 CM
Source: CMS coverage guidance
CPT 11422high
EXCISION, BENIGN LESION INCLUDING MARGINS, EXCEPT SKIN TAG (UNLESS LISTED ELSEWHERE), SCALP, NECK, HANDS, FEET, GENITALIA; EXCISED DIAMETER 1.1 TO 2.0 CM
Source: CMS coverage guidance
CPT 11423high
EXCISION, BENIGN LESION INCLUDING MARGINS, EXCEPT SKIN TAG (UNLESS LISTED ELSEWHERE), SCALP, NECK, HANDS, FEET, GENITALIA; EXCISED DIAMETER 2.1 TO 3.0 CM
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 699221007high
Acral keratosis
Source: SNOMED International ICD-10 map
SNOMED_CT 1251394001high
Callus of forefoot
Source: SNOMED International ICD-10 map
SNOMED_CT 403871001high
Cutaneous horn
Source: SNOMED International ICD-10 map
SNOMED_CT 254664008high
Eruptive keratoacanthoma
Source: SNOMED International ICD-10 map
SNOMED_CT 400115004high
Focal acral hyperkeratosis
Source: SNOMED International ICD-10 map
SNOMED_CT 403907002high
Giant keratoacanthoma
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
L85.8
Common synonyms
Other specified epidermal thickening
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.