M67.2 - Synovial hypertrophy, not elsewhere classified
M67.27 - Synovial hypertrophy, not elsewhere classified, ankle and foot
M67.271 - Synovial hypertrophy, not elsewhere classified, right ankle and foot
M67.272 - Synovial hypertrophy, not elsewhere classified, left ankle and foot
M67.279 - Synovial hypertrophy, not elsewhere classified, unspecified ankle and foot