Other calcification of muscle, multiple sites

This code signifies the presence of abnormal calcium deposits within muscle tissue affecting multiple, distinct anatomical locations. These calcifications are not due to a specific, named myositis ossificans condition but rather represent other forms of muscle calcification.

Apply this code when documentation clearly indicates calcification of muscle tissue in more than one body region, and the specific type of myositis ossificans (e.g., progressive, traumatic) is not specified or is ruled out. This code is appropriate for findings such as dystrophic calcification in multiple muscle groups secondary to chronic conditions or injury.

• Ensure documentation specifies "multiple sites" to differentiate from single-site calcification.
• Do not use this code if a more specific code for myositis ossificans (e.g., M61.0-, M61.1-) is applicable.
• Code any underlying cause or associated condition of the calcification, such as a metabolic disorder or chronic injury, as a primary or secondary diagnosis.