M65.8 - Other synovitis and tenosynovitis
M65.87 - Other synovitis and tenosynovitis, ankle and foot
M65.871 - Other synovitis and tenosynovitis, right ankle and foot
M65.872 - Other synovitis and tenosynovitis, left ankle and foot
M65.879 - Other synovitis and tenosynovitis, unspecified ankle and foot