Myositis ossificans traumatica, left thigh

This code signifies the presence of myositis ossificans, a condition characterized by heterotopic bone formation within muscle tissue, specifically in the left thigh, and attributed to a traumatic event. It represents a non-neoplastic proliferation of bone in soft tissues, often following muscle injury or contusion.

Apply this code when documentation confirms the diagnosis of myositis ossificans in the left thigh, with a clear etiology linked to trauma. This typically includes findings from imaging studies (e.g., X-ray, MRI) showing calcification or ossification within the muscle, alongside a history of injury to the affected area.

• Ensure documentation explicitly states "traumatic" as the cause; otherwise, consider other myositis ossificans codes.
• Verify laterality (left thigh) is clearly documented to support this specific code.
• Distinguish from other calcific soft tissue lesions or bone tumors; the key is the heterotopic bone formation within muscle due to trauma.