Desmoid tumor of abdominal wall

This code represents a desmoid tumor, also known as aggressive fibromatosis, specifically located in the abdominal wall. These are rare, locally aggressive, non-metastasizing soft tissue tumors arising from musculoaponeurotic structures. While benign histologically, they can cause significant morbidity due to their infiltrative growth pattern.

Use this code for documented cases of desmoid tumors confirmed to originate within the abdominal wall musculature or fascia. Documentation should clearly specify the tumor type as "desmoid" or "aggressive fibromatosis" and its precise anatomical location as the abdominal wall. This code is appropriate for initial diagnosis, treatment, and follow-up of such lesions.

• Ensure documentation explicitly states "abdominal wall" as the tumor's location; other desmoid tumor sites have different codes.
• Do not confuse desmoid tumors with other benign or malignant soft tissue neoplasms; histological confirmation is crucial.
• This code is for the tumor itself; code any associated complications (e.g., pain, obstruction) separately.