M65.849
ICD-10-CMThis code signifies inflammation of the synovial membrane lining a joint or tendon sheath in an unspecified area of the hand, excluding specific types of synovitis or tenosynovitis. It represents a non-specific inflammatory process affecting the soft tissues of the hand.
This code is appropriate when documentation indicates synovitis or tenosynovitis of the hand without further specification of the exact location (e.g., wrist, finger) or a more specific type of inflammation. It is used when the provider's diagnosis is "other synovitis of hand" or "tenosynovitis of hand, unspecified."
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