Showing 1-3 of 3 juvenile idiopathic arthritis:
Is anti-CCP and Rheumatoid Factor (RF) available in the OM1 JIA dataset?

We have provided a code set below to help you identify those patients with a lab in the JIA datasets. The anti-CCP positive/negative status is available via the following three LOINC codes: LOINC Code LOINC Name 53028-7 Cyclic citrullinated peptide Ab [Presence] in Serum 63375-0 Cyclic citrullinated peptide IgA+IgG Ab [Presence] in Serum 42898-7 Cyclic[…]

For JIA, can we differentiate pcJIA (polyarticular course) and sJIA (systemic)?

One can approach differentiating between these via diagnostic codes, supplemented with the joint counts. The diagnostic codes that directly refer to the polyarticular status and can be used as a proxy pcJIA are: ICD9: 714.30: Polyarticular juvenile rheumatoid arthritis, chronic or unspecified 714.31: Polyarticular juvenile rheumatoid arthritis, acute ICD10: M08.3 seronegative polyarthritis The above ICD10[…]