ICD-10-CM > M00-M99 > M05-M14 > M08 > M08.2 > M08.21 M08.21 Juvenile rheumatoid arthritis with systemic onset, shoulder Non-Billable/Non-Specific Codes M08.211Juvenile rheumatoid arthritis with systemic onset, right shoulderM08.212Juvenile rheumatoid arthritis with systemic onset, left shoulderM08.219Juvenile rheumatoid arthritis with systemic onset, unspecified shoulder