Paralytic calcifcn and ossifictn of muscle, multiple sites

This code represents the pathological hardening of muscle tissue into bone-like material across multiple locations in the body, specifically occurring in muscles that have experienced paralysis. This ossification can restrict movement and cause pain due to the abnormal bone formation within the soft tissue.

Assign this code when documentation clearly indicates the presence of myositis ossificans or heterotopic ossification affecting several muscles, and the condition is explicitly linked to a prior paralytic state. Supporting documentation should include imaging reports (e.g., X-ray, CT scan) confirming calcification/ossification and a history of paralysis.

• Ensure the documentation specifies "multiple sites" to differentiate from single-site involvement.
• Confirm the etiology is paralytic; other forms of myositis ossificans have different codes.
• Code any underlying paralytic condition separately, if still active and relevant to the encounter.