Validation of methods to identify people with idiopathic inflammatory myopathies using hospital episode statistics.
Jennifer R HannahPatrick A GordonJames GallowayMegan RutterEmily J PeachMichael RooneyPeter StilwellMatthew J GraingePeter C LanyonMary BythellFiona A PearcePublished in: Rheumatology advances in practice (2022)
IIM ICD-10 code combinations in HES have high PPVs and sensitivities. Algorithms tested in this study could be applied across all NHS Trusts to enable robust and cost-effective whole-population research into the epidemiology of IIM.