ICD-10 Code D48.110 – Desmoid Tumor of Head and Neck (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D48.110 – Desmoid tumor of head and neck
What it is
D48.110 identifies a desmoid tumor in the head and neck region. It is a locally aggressive fibrous tumor that does not metastasize, but it can invade nearby tissue and recur.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include a firm, slowly enlarging mass in the head or neck, with possible pain, pressure, or limitation from local compression.
When to use this code
Use this code when the provider documents a desmoid tumor specifically involving the head or neck. It is appropriate for confirmed diagnoses on imaging, biopsy, or specialist assessment when the site is clearly stated. If the record only says “desmoid tumor” without location, check documentation.
Do not use for
Do not use it for benign lipoma, fibromatosis at another site, or an unspecified soft tissue mass. If the lesion is not documented as a desmoid tumor of the head and neck, choose a more accurate code.
Coding tip
Verify both the tumor type and anatomic site in the note before assigning D48.110.