Icd 10 rheumatoid arthritis with positive rheumatoid factor involving unspecified site July 8, 2019 16 32 64 128 Icd 10 code for rheumatoid arthritis with positive rheumatoid factor involving unspecified site Rheumatoid arthritis with positive rheumatoid factor involving unspecified site (hc) icd 10 Rheumatoid arthritis with positive rheumatoid factor involving unspecified site icd 10 cm