M67.8 - Other specified disorders of synovium and tendon
M67.86 - Other specified disorders of synovium and tendon, knee
M67.861 - Other specified disorders of synovium, right knee
M67.862 - Other specified disorders of synovium, left knee
M67.863 - Other specified disorders of tendon, right knee
M67.864 - Other specified disorders of tendon, left knee
M67.869 - Other specified disorders of synovium and tendon, unspecified knee