COVID identification in primary care - probable covid - positive test

This version is under review

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Codelist metadata

Coding system

CTV3 (Read V3)

Coding system release

unknown

Organisation

OpenSAFELY

Codelist ID

opensafely/covid-identification-in-primary-care-probable-covid-positive-test

Version ID

508192f8

Versions

About

Description

Codes indicating COVID-19 case (1 of 13 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 "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

  • Krishnan Bhaskaran, (July 16, 2020)
  • Laurie Tomlinson, (July 16, 2020)
  • Alex Walker, (Jan. 25, 2022)
  • Colm Andrews, (Dec. 25, 2022)

Codelists are developed by a broad community of users for individual study purposes, which may or may not meet the needs of other studies. They should not be thought of as universal definitions of a particular condition.

We don't offer any guarantees about what they do or don't identify. Users should carefully check that any codelist meets their needs, and seek clinical input where appropriate.

CTV3ID CTV3PreferredTermDesc CTV3Source
XaLTE Coronavirus nucleic acid detection
Y20d1 SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) RNA (ribonucleic acid) detection result positive
Y213a Antigen of 2019-nCoV (novel coronavirus)
Y228d Coronavirus disease 19 caused by severe acute respiratory syndrome coronavirus 2 confirmed by laboratory test (situation)
Y23f7 SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) detection result positive
Y240b SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) RNA (ribonucleic acid) qualitative existence in specimen
Y2a3b SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) RNA (ribonucleic acid) detection result positive
Y269d SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) antigen detection result positive

Codes not in the full codelist are in faint grey.