Other epidermal thickening (L85) ICD-10-CM
The L85 code range covers other epidermal thickening with 7 ICD-10-CM diagnosis codes. 6 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- hypertrophic disorders of the skin L91
Codes in the L85 Range 7 codes · 6 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the L85 range.
Ichthyosis Acquisita
A non-hereditary form of ichthyosis characterized by plate-like scales on the legs, arms and occasionally the torso.
Keratoacanthoma
A benign, non-neoplastic, usually self-limiting epithelial lesion closely resembling squamous cell carcinoma clinically and histopathologically. It occurs in solitary, multiple, and eruptive forms. The solitary and multiple forms occur on sunlight exposed areas and are identical histologically; they affect primarily white males. The eruptive form usually involves both sexes and appears as a generalized papular eruption.
About the L85 Code Range
These conditions involve thickening of the skin’s outer layer. The category also includes xerosis cutis, or dry skin.
The subdivisions distinguish acquired ichthyosis (L85.0), acquired keratosis of the palms and soles (L85.1), and punctate keratosis of those areas (L85.2). Dry skin has its own subdivision (L85.3). The remaining subdivisions distinguish other specified thickening (L85.8) from unspecified thickening (L85.9).
Questions About This Page
How many billable codes are in the L85 range?
Of the 7 codes in this range, 6 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the L85 range classify?
The range classifies other epidermal thickening. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
