Benign neoplasm of soft tissue of peritoneum

This code signifies a non-cancerous growth originating from the soft tissues within the peritoneal cavity. These neoplasms are typically slow-growing and do not metastasize, but their presence may still cause symptoms depending on their size and location.

Apply this code when documentation clearly indicates a benign tumor of the soft tissues of the peritoneum, confirmed by pathology or imaging. This is appropriate for initial diagnosis, follow-up, or treatment of such a lesion. Supporting documentation should specify the benign nature and the peritoneal soft tissue origin.

• Ensure the documentation explicitly states "benign" and specifies the "soft tissue of peritoneum" to avoid miscoding.
• Distinguish from malignant peritoneal neoplasms (C48.-) or benign neoplasms of other abdominal organs.
• Code the specific type of benign soft tissue neoplasm if further detail is provided (e.g., lipoma, fibroma) using a more specific code if available.