Seropositive polyarticular rheumatoid arthritis icd 10 July 8, 2019 16 32 64 128 Seropositive rheumatoid arthritis icd 10 Seropositive rheumatoid arthritis both hips icd 10 Seronegative arthritis icd 10 Icd 10 code seropositive rheumatoid arthritis