M67.2 - Synovial hypertrophy, not elsewhere classified
M67.26 - Synovial hypertrophy, not elsewhere classified, lower leg
M67.261 - Synovial hypertrophy, not elsewhere classified, right lower leg
M67.262 - Synovial hypertrophy, not elsewhere classified, left lower leg
M67.269 - Synovial hypertrophy, not elsewhere classified, unspecified lower leg