Crepitant synovitis (acute) (chronic), unspecified hand

This code describes inflammation of the synovial membrane of the hand, characterized by a crackling or grating sensation (crepitus) upon movement. This condition can be acute or chronic and affects an unspecified hand.

Use this code when documentation specifies crepitant synovitis affecting the hand, without laterality specified. This diagnosis is typically supported by physical examination findings of crepitus, pain, and swelling in the hand, along with a physician's diagnostic statement.

• Ensure the documentation explicitly states "crepitant synovitis" and specifies the hand.
• Avoid using this code if laterality (left or right hand) is documented; instead, use the more specific codes M70.041 (right hand) or M70.042 (left hand).
• Do not use this code for other forms of synovitis without crepitus, or for tenosynovitis, which has separate codes.