Myositis ossificans traumatica, left shoulder

This code describes the formation of bone within soft tissue of the left shoulder, specifically occurring as a result of trauma. This condition, known as myositis ossificans, involves the abnormal growth of heterotopic bone in muscle or other connective tissues following an injury.

Use this code for patients presenting with a diagnosis of myositis ossificans affecting the left shoulder, where the condition is explicitly linked to a traumatic event. Documentation should clearly state the presence of heterotopic ossification in the left shoulder and its traumatic etiology.

• Ensure documentation specifies "traumatica" to differentiate from progressive or other forms of myositis ossificans.
• Verify the laterality is clearly documented as "left shoulder."
• Consider additional codes for the initial traumatic injury if still within the active treatment phase.