M67.2 - Synovial hypertrophy, not elsewhere classified
M67.22 - Synovial hypertrophy, not elsewhere classified, upper arm
M67.221 - Synovial hypertrophy, not elsewhere classified, right upper arm
M67.222 - Synovial hypertrophy, not elsewhere classified, left upper arm
M67.229 - Synovial hypertrophy, not elsewhere classified, unspecified upper arm