Other synovitis and tenosynovitis, unspecified upper arm

This code represents inflammation of the synovial membrane (synovitis) or the tendon sheath (tenosynovitis) affecting an unspecified area of the upper arm. It indicates a non-specific inflammatory process without further detail regarding the specific tendon or joint involved.

Use this code when documentation specifies synovitis or tenosynovitis of the upper arm, but the exact anatomical location (e.g., biceps, triceps) or laterality is not recorded. This code is appropriate when the provider's assessment points to an inflammatory condition in the upper arm region, but further diagnostic specificity is lacking.

• Avoid using this code if a more specific anatomical site (e.g., shoulder, elbow) or laterality is documented; instead, use a more precise code from the M65.8- series.
• Always query the provider for greater specificity regarding the exact location and laterality if possible, to allow for more precise coding.
• This code is for inflammatory conditions; do not use it for traumatic injuries unless synovitis/tenosynovitis is a documented sequela.