Myositis ossificans traumatica, unspecified site

This code represents the formation of bone tissue within muscle or other soft tissues following a traumatic injury, without specifying the anatomical location. It describes a benign, heterotopic ossification that typically occurs after a single, significant trauma or repeated microtrauma. The condition results in a firm, often painful, mass within the affected soft tissue.

Use this code when documentation confirms myositis ossificans that is explicitly linked to a traumatic event, and the specific anatomical site of the condition is not documented. This code is appropriate when the provider's notes describe the characteristic symptoms and findings of heterotopic ossification post-trauma, such as a palpable mass and pain, but do not specify the affected muscle or body region.

• Always seek clarification from the provider if the anatomical site of the myositis ossificans is not specified, as more specific codes exist (e.g., M61.01-M61.08).
• Do not use this code for myositis ossificans that is not explicitly stated as traumatic in origin; consider codes from M61.1-M61.9 for other forms.
• Ensure documentation clearly links the ossification to a traumatic event; otherwise, a non-traumatic myositis ossificans code may be more appropriate.