COVID identification in primary care - suspect case



Project
OpenSAFELY
Coding system
CTV3 (Read V3) with TPP extensions
Version
2020-06-23
Codelist ID
opensafely/covid-identification-in-primary-care-suspect-case

Description

Codes indicating COVID-19 case (1 of 7 possible types of CTV3 codes that contain information related to COVID-19)

Methodology

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 "suspect case" was then performed following review of terms by six OpenSAFELY team members (including epidemiologists, clinicians, statisticians and infectious disease modellers).

References

Signed off by

  • Kevin Wing, LSHTM (June 23, 2020)
  • Alex Walker, EBM Datalab (June 24, 2020)

This definition has been computed by taking the manually created full codelist and converting it to a list of rules that define the codelist.

CTV3ID CTV3PreferredTermDesc
Y228f Self-isolation to prevent exposure of community to contagion
Y22a7 Household isolation to prevent exposure of community to contagion
Y22ac Has National Health Service digital isolation note (finding)
Y22a6 Household isolation note issued to patient (finding)
Y22ad Self-isolation note issued to patient (finding)
Y212d Advice given about severe acute respiratory syndrome coronavirus 2 infection (situation)
Y212c Advice given about severe acute respiratory syndrome coronavirus 2 by telephone (situation)
Y212e Educated about severe acute respiratory syndrome coronavirus 2 infection (situation)
Y211b Telephone consultation for suspected severe acute respiratory syndrome coronavirus 2 (procedure)
Y22b9 Patient waiting to be tested for Covid-19
Y245b Assessment using exertional desaturation test (procedure)
Y244f Assessment using 1-minute sit-to-stand test (procedure)
Y245a Assessment using 40-step test (procedure)
Y244b 1-minute sit-to-stand test score (observable entity)
Y244d 40-step test score (observable entity)
Y245e Peripheral blood oxygen saturation level on room air on exertion decreased (finding)
Y246a Peripheral blood oxygen saturation level on supplemental oxygen on exertion decreased (finding)
Y245f Peripheral blood oxygen saturation level on room air on exertion unchanged (finding)
Y246b Peripheral blood oxygen saturation level on supplemental oxygen on exertion unchanged (finding)
Y229d Swab for severe acute respiratory syndrome coronavirus 2 taken by healthcare professional (situation)
Y22a0 Taking of swab for severe acute respiratory syndrome coronavirus 2 (procedure)
Y229b Swab for severe acute respiratory syndrome coronavirus 2 taken by subject (situation)
Y229a Self-taking of swab for severe acute respiratory syndrome coronavirus 2 offered (situation)
Y22af Self-taking of swab for SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) completed
Y241a Severe acute respiratory syndrome coronavirus 2 species detection test (procedure)
Y240d Central laboratory severe acute respiratory syndrome coronavirus 2 species detection test (procedure)
Y240f Point of care severe acute respiratory syndrome coronavirus 2 species detection test (procedure)
Xaboe Coronavirus ribonucleic acid detection assay
Xab7a Coronavirus nucleic acid detection assay
Y210e Detection of severe acute respiratory syndrome coronavirus 2 using polymerase chain reaction technique (procedure)
Y211a Measurement of severe acute respiratory syndrome coronavirus 2 antigen (procedure)
Y23f5 SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) RNA (ribonucleic acid) detection result equivocal
Y23f6 SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) RNA (ribonucleic acid) detection result unknown
Y23f5 SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) RNA (ribonucleic acid) detection result equivocal
Y23f6 SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) RNA (ribonucleic acid) detection result unknown
Y22b8 Patient reported having already had Covid-19 in the recent past (tested)
Y22b7 Patient reported having already had Covid-19 in the recent past (not tested)
Y20cf Suspected coronavirus disease 19 caused by severe acute respiratory syndrome coronavirus 2 (situation)
XaaNq Suspected coronavirus infection