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  3. L00–L99
  4. L60-L75
  5. Nail disorders in diseases classified elsewhere (L62)

Nail disorders in diseases classified elsewhere (L62)

The ICD-10 code L62 is used specifically for identifying nail disorders that occur as part of other systemic diseases or skin conditions. This code captures nail problems that are not isolated but linked to underlying health issues.

L62 covers a range of nail abnormalities such as habit tic deformity, psoriasis affecting the nails, and nail changes that result from systemic illnesses like congestive heart failure (notably the "red half-moon" nail sign). It is designed to document acquired nail deformities or disorders caused by dermatoses and other systemic diseases. Using this code helps medical coders accurately report nail conditions secondary to broader health problems, supporting clinical clarity and better patient management. For healthcare professionals searching for the ICD-10 code for nail disorders in systemic disease, L62 clarifies that these nail abnormalities are linked to conditions classified elsewhere rather than primary nail diseases.

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:
  • pachydermoperiostosis M89.4