Codes indicating COVID-19 case (1 of 13 possible types of CTV3 codes that contain information related to COVID-19)
Search of TPP CTV3 codes for terms relating to coronavirus, with additional (manual) check for any missing terms against the SNOMED list of COVID-19 related codes.
Classification as "case" was then performed following review of terms by six OpenSAFELY team members (including epidemiologists, clinicians, statisticians and infectious disease modellers).
This definition has been computed by taking the manually created full codelist and converting it to a list of rules that define the codelist.
|Y244b||1-minute sit-to-stand test score (observable entity)|
|Y244d||40-step test score (observable entity)|
|Y244f||Assessment using 1-minute sit-to-stand test (procedure)|
|Y245a||Assessment using 40-step test (procedure)|
|Y245b||Assessment using exertional desaturation test (procedure)|
|Y245e||Peripheral blood oxygen saturation level on room air on exertion decreased (finding)|
|Y245f||Peripheral blood oxygen saturation level on room air on exertion unchanged (finding)|
|Y246a||Peripheral blood oxygen saturation level on supplemental oxygen on exertion decreased (finding)|
|Y246b||Peripheral blood oxygen saturation level on supplemental oxygen on exertion unchanged (finding)|