ICD-10-CM > M00-M99 > M05-M14 > M08 > M08.4 > M08.46 M08.46 Pauciarticular juvenile rheumatoid arthritis, knee Non-Billable/Non-Specific Codes M08.461Pauciarticular juvenile rheumatoid arthritis, right kneeM08.462Pauciarticular juvenile rheumatoid arthritis, left kneeM08.469Pauciarticular juvenile rheumatoid arthritis, unspecified knee