Oth disrd of synovium and tendon, unspecified knee

This code represents various non-specific conditions affecting the synovial membranes and tendons around the knee joint that are not classified elsewhere. It encompasses inflammatory, degenerative, or other structural abnormalities of these tissues when a more precise diagnosis is unavailable. This diagnosis indicates an unspecified laterality for the affected knee.

Use this code when documentation indicates an "other specified" disorder of the synovium or tendon of the knee, but the specific type of disorder is not detailed, and the laterality is not documented. This is appropriate for conditions like unspecified tenosynovitis, synovitis, or other soft tissue disorders of the knee that don't fit into more specific ICD-10 categories. Supporting documentation should clearly state a knee-related synovial or tendon issue without further specificity.

• Avoid using this code if laterality (right or left knee) is documented; instead, choose a more specific code from the M67.86 category.
• Ensure the documentation explicitly states "other specified" or a similar non-specific diagnosis for the synovium or tendon of the knee.
• Do not use for conditions with a more precise ICD-10-CM code, such as specific types of tendinitis (e.g., patellar tendinitis) or bursitis.