Myositis ossificans progressiva, left hand

This code represents a rare, progressive genetic disorder characterized by the abnormal formation of bone in muscles, tendons, ligaments, and other connective tissues, specifically affecting the left hand. This heterotopic ossification leads to pain, swelling, and progressive loss of joint mobility in the affected area.

Use this code when documentation confirms a diagnosis of myositis ossificans progressiva (also known as fibrodysplasia ossificans progressiva) with specific involvement of the left hand. Supporting documentation should include physician notes detailing the diagnosis, location, and clinical manifestations of the condition.

• Ensure documentation clearly specifies "progressiva" to differentiate from localized myositis ossificans.
• Verify laterality; this code is specific to the left hand.
• Do not confuse with traumatic myositis ossificans (M61.0- series) or other forms of heterotopic ossification.