Unspecified synovitis and tenosynovitis, unspecified ank/ft

This code signifies inflammation of the synovial membrane (synovitis) or the tendon sheath (tenosynovitis) within an unspecified ankle or foot. It indicates a general inflammatory process affecting these structures without further specification of the exact location or cause.

This code is appropriate when documentation indicates synovitis or tenosynovitis of the ankle or foot, but the specific anatomical site (e.g., talocrural joint, Achilles tendon) or laterality (left, right, bilateral) is not documented. It should be used when the provider's notes lack the detail to assign a more specific code.

• Avoid using this code if laterality (left, right, bilateral) or a more specific anatomical site within the ankle/foot is documented.
• Always query the provider for more specific information regarding location and laterality before assigning this unspecified code.
• Consider codes from the M77 category (Other enthesopathies) if the inflammation is specifically at a tendon insertion site.