M08.4 - Pauciarticular juvenile rheumatoid arthritis
M08.46 - Pauciarticular juvenile rheumatoid arthritis, knee
M08.461 - Pauciarticular juvenile rheumatoid arthritis, right knee
M08.462 - Pauciarticular juvenile rheumatoid arthritis, left knee
M08.469 - Pauciarticular juvenile rheumatoid arthritis, unspecified knee