Hypertrophy of bone, unspecified shoulder

This diagnosis code signifies an abnormal increase in the size of bone tissue within the shoulder joint, without further specification of the exact location or underlying cause. It indicates an overgrowth of bone that can lead to impingement, pain, and restricted range of motion. This condition is distinct from bone spurs (osteophytes) which are typically smaller, localized projections.

Use this code when documentation clearly states "hypertrophy of bone, shoulder" without specifying laterality (left or right) or a more precise anatomical site within the shoulder. This code is appropriate when the physician has identified bone overgrowth but has not provided further detail regarding its specific location or etiology.

• Avoid using this code if the documentation specifies a particular bone within the shoulder (e.g., "hypertrophy of the humerus").
• Ensure the documentation explicitly states "hypertrophy" and not just "enlargement" or "thickening" without further context.
• If laterality is documented (left or right shoulder), select the more specific code (M89.311 or M89.312).