Keratoderma in diseases classified elsewhere (L86)
The ICD-10 code L86 is used to identify keratoderma occurring in the context of other underlying diseases. It specifically addresses thickening of the skin that is linked to conditions classified elsewhere in the ICD system.
The term keratoderma refers to abnormal thickening of the skin, often on the palms and soles. This code covers specialized types such as palmoplantar keratoderma with leukoplakia and keratoderma caused by Dowling-Meara type epidermolysis bullosa simplex, which are conditions where skin thickening arises as part of another primary disease. Using L86 helps medical coders precisely document these complex cases where skin symptoms are secondary manifestations rather than isolated disorders. This distinction supports accurate clinical tracking and treatment planning for patients with these intertwined skin and systemic pathologies. For health professionals searching for the ICD-10 code for keratoderma related to broader diseases, L86 is the relevant and specific classification.
Diseases of the skin and subcutaneous tissue (L00–L99)
Other disorders of the skin and subcutaneous tissue (L80-L99)
- L86 Keratoderma in diseases classified elsewhere
Keratoderma in diseases classified elsewhere (L86)
Instructional Notations
Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
- underlying disease, such as:
- Reiter's disease M02.3
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
