M67.9 - Unspecified disorder of synovium and tendon
M67.97 - Unspecified disorder of synovium and tendon, ankle and foot
M67.971 - Unspecified disorder of synovium and tendon, right ankle and foot
M67.972 - Unspecified disorder of synovium and tendon, left ankle and foot
M67.979 - Unspecified disorder of synovium and tendon, unspecified ankle and foot