Myositis ossificans progressiva, right finger(s)

This code identifies a rare, progressive genetic disorder characterized by the formation of bone in muscles, tendons, ligaments, and other connective tissues, specifically affecting the right finger(s). This heterotopic ossification leads to severe and irreversible loss of mobility. The condition is typically present from birth and worsens over time.

Apply this code when documentation confirms a diagnosis of fibrodysplasia ossificans progressiva (FOP) with involvement of the right finger(s). This diagnosis is often made based on clinical findings and confirmed by genetic testing. Look for terms like "myositis ossificans progressiva," "FOP," or "stone man syndrome" explicitly noting right finger involvement.

• Ensure laterality is clearly documented as "right finger(s)" to support this specific code.
• Do not confuse with localized myositis ossificans (M61.0-), which is typically post-traumatic and not progressive.
• Consider additional codes for any associated symptoms or complications, such as contractures or pain, if documented.