ICD-10-CM > M00-M99 > M05-M14 > M12 > M12.0 > M12.04 M12.04 Chronic postrheumatic arthropathy [Jaccoud], hand Non-Billable/Non-Specific Codes M12.041Chronic postrheumatic arthropathy [Jaccoud], right handM12.042Chronic postrheumatic arthropathy [Jaccoud], left handM12.049Chronic postrheumatic arthropathy [Jaccoud], unspecified hand