ICD-10 Code D48.11 – Desmoid tumor (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D48.11 – Desmoid tumor
What it is
D48.11 identifies a desmoid tumor, also called aggressive fibromatosis. It is a nonmetastatic soft tissue tumor that can grow locally and invade nearby structures.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you may see a firm mass, pain, or limited function from local tissue involvement. Diagnosis is usually supported by imaging and pathology.
When to use this code
Use D48.11 when the provider documents a desmoid tumor, desmoid-type fibromatosis, or aggressive fibromatosis. Code it for confirmed cases involving soft tissue or abdominal wall lesions. If the record only says “mass” or “tumor” without confirmation, check documentation before assigning this code.
Do not use for
Do not use D48.11 for malignant soft tissue neoplasms or for unspecified masses. If the lesion is documented as another fibrous disorder or a different tumor type, select the more specific code.
Coding tip
Code from the final documented diagnosis, not from imaging suspicion alone.