M08.0 - Unspecified juvenile rheumatoid arthritis
M08.06 - Unspecified juvenile rheumatoid arthritis, knee
M08.061 - Unspecified juvenile rheumatoid arthritis, right knee
M08.062 - Unspecified juvenile rheumatoid arthritis, left knee
M08.069 - Unspecified juvenile rheumatoid arthritis, unspecified knee