Myositis ossificans traumatica, left hand

This code describes the formation of heterotopic bone within muscle tissue of the left hand, specifically resulting from a traumatic injury. This non-neoplastic process leads to a localized mass of mature lamellar bone in soft tissues where bone does not normally exist.

Use this code when documentation clearly indicates myositis ossificans affecting the left hand, with a direct causal link to a previous trauma. This diagnosis is typically confirmed by imaging studies (e.g., X-ray, CT scan) showing mature bone formation within the soft tissues.

• Ensure documentation specifies "traumatica" and the laterality of the hand.
• Do not confuse with other forms of heterotopic ossification or calcification without a traumatic etiology.
• Consider sequencing a code for the underlying trauma if still active and relevant to the current encounter.