Synovial hypertrophy, NEC, unsp shoulder

This code signifies an abnormal overgrowth or thickening of the synovial membrane within the shoulder joint, not attributable to other specific conditions. This hypertrophy can lead to pain, swelling, and restricted range of motion in the affected shoulder. It represents a non-specific inflammatory or degenerative process of the synovium.

Apply this code when documentation indicates synovial hypertrophy of an unspecified shoulder without a more specific underlying cause, such as rheumatoid arthritis, infection, or trauma. This is appropriate when the provider has diagnosed synovial thickening but has not specified laterality (left or right) or a more precise etiology. Documentation should clearly state "synovial hypertrophy" of the shoulder.

• Avoid using this code if a more specific diagnosis for the synovial hypertrophy (e.g., due to rheumatoid arthritis, gout) is documented; use the more specific code instead.
• Ensure the documentation explicitly states "unspecified shoulder" or lacks laterality specification; otherwise, use a laterality-specific code (M67.211, M67.212).
• Consider sequencing this code after any underlying systemic conditions if they are the primary cause of the synovial hypertrophy, if applicable.