O36 Validation of methods to enable national registration for rare autoimmune rheumatic diseases

Background The National Congenital Anomaly and Rare Disease Registration Service (NCARDRS) records those people with congenital anomalies and rare diseases across the whole of England. The NCARDRS Rare Rheumatology Project is establishing methodologies to identify and register people with rare rheumatic diseases. Hospital Episode Statistics (HES), comprising data from all admitted-patient NHS care in England, provides a promising source for case...