Other calcification of muscle, unspecified forearm

This code signifies the presence of abnormal calcium deposits within the muscle tissue of an unspecified forearm, excluding those specifically classified elsewhere (e.g., myositis ossificans traumatica). These calcifications are non-traumatic in origin and can be idiopathic or related to metabolic disturbances.

Apply this code when documentation indicates calcification of muscle in the forearm without a specified cause or laterality. Supporting documentation would include imaging reports (X-ray, CT, MRI) confirming intramuscular calcification and a physician's note ruling out traumatic etiology or other specific forms of myositis ossificans.

• Ensure the documentation specifies "unspecified forearm" if laterality is not documented.
• Distinguish from M61.0- (Myositis ossificans traumatica) which is for post-traumatic calcification.
• Query the provider for laterality (right or left forearm) if not specified, to allow for a more specific code.