Rheumatoid arthritis with negative rheumatoid factor icd 10 cm July 8, 2019 16 32 64 128 Rheumatoid arthritis involving both hands with negative rheumatoid factor icd 10 cm Rheumatoid arthritis of multiple sites with negative rheumatoid factor icd 10 cm code Rheumatoid arthritis with negative rheumatoid factor involving unspecified site icd 10 cm