ICD-10 Code L90.1 – Anetoderma of Schweninger-Buzzi (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L90.1 – Anetoderma of Schweninger-Buzzi
What it is
L90.1 identifies anetoderma, a rare disorder marked by focal loss of elastic tissue in the skin. The affected areas become thin, slack, and may protrude or appear depressible.
Clinical signs
Typical findings include round or oval atrophic patches or nodules with a wrinkled, herniated, or “buttonhole” feel. Clinical features vary; refer to documentation if the note does not clearly describe the lesion type.
When to use this code
Use L90.1 when the provider documents anetoderma or anetoderma of Schweninger-Buzzi as the diagnosis. It fits cases where the skin lesion is specifically identified as this condition, including confirmed longstanding atrophic plaques. If the record only says skin atrophy or a nonspecific dermatologic lesion, check documentation before coding.
Do not use for
Do not use this code for other forms of cutaneous atrophy, scars, or generalized connective tissue disorders unless anetoderma is stated. Check documentation when the lesion is described only as a nonspecific rash or skin thinning.
Coding tip
Code L90.1 only when the provider names anetoderma; otherwise, query for a more specific diagnosis.