ICD-10-CM > M00-M99 > M05-M14 > M06 > M06.0 > M06.04 M06.04 Rheumatoid arthritis without rheumatoid factor, hand Non-Billable/Non-Specific Codes M06.041Rheumatoid arthritis without rheumatoid factor, right handM06.042Rheumatoid arthritis without rheumatoid factor, left handM06.049Rheumatoid arthritis without rheumatoid factor, unspecified hand