Seronegative arthritis icd 9 July 8, 2019 16 32 64 128 Seronegative rheumatoid arthritis icd 9 Seronegative inflammatory arthritis icd 9 Seronegative arthritis icd 10 Seropositive rheumatoid arthritis both hips icd 10 Seropositive rheumatoid arthritis icd 10