Other calcification of muscle, unspecified hand

This code signifies the presence of abnormal calcium deposits within the muscle tissue of an unspecified hand, not otherwise classified as myositis ossificans traumatica or progressive. These calcifications are typically non-neoplastic and can result from various underlying conditions or idiopathic causes.

Apply this code when documentation indicates calcification within the muscle of a hand, and the specific type of calcification (e.g., traumatic, progressive) is not specified or ruled out. This code is appropriate when the laterality of the hand (left or right) is also not documented.

• Ensure the documentation clearly states "calcification of muscle" and specifies the hand as the affected site.
• Avoid using this code if the documentation specifies myositis ossificans traumatica (M61.0-) or myositis ossificans progressiva (M61.1-).
• If laterality is documented (left or right hand), use the more specific codes M61.441 or M61.442 instead.