M67.9 - Unspecified disorder of synovium and tendon
M67.96 - Unspecified disorder of synovium and tendon, lower leg
M67.961 - Unspecified disorder of synovium and tendon, right lower leg
M67.962 - Unspecified disorder of synovium and tendon, left lower leg
M67.969 - Unspecified disorder of synovium and tendon, unspecified lower leg