Other ossification of muscle, unspecified shoulder

This code represents the abnormal formation of bone within the muscle tissue of an unspecified shoulder, excluding myositis ossificans traumatica. This condition, known as heterotopic ossification, results in the hardening of muscle tissue due to bone deposition.

Use this code when documentation indicates ossification of a shoulder muscle without a specified cause (e.g., trauma, genetic disorder) or specific muscle involvement. This code is appropriate when the provider explicitly diagnoses "other ossification of muscle, unspecified shoulder" or similar terminology.

• Ensure the documentation clearly states "unspecified shoulder" and does not specify a left or right side.
• Differentiate from M61.0- (Myositis ossificans traumatica) which is specifically for post-traumatic ossification.
• Avoid using this code if a more specific site or cause of ossification is documented; instead, query the provider for clarification.