M05.4 - Rheumatoid myopathy with rheumatoid arthritis
M05.42 - Rheumatoid myopathy with rheumatoid arthritis of elbow
M05.421 - Rheumatoid myopathy with rheumatoid arthritis of right elbow
M05.422 - Rheumatoid myopathy with rheumatoid arthritis of left elbow
M05.429 - Rheumatoid myopathy with rheumatoid arthritis of unspecified elbow