COVID identification in primary care - antigen test negative
Codelist metadata
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Coding system
- CTV3 (Read V3)
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Coding system release
- unknown
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Organisation
- OpenSAFELY
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Codelist ID
- opensafely/covid-identification-in-primary-care-antigen-test-negative
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Version ID
- 702547ee
Versions
About
Description
Codes indicating COVID-19 antigen test negative (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 "antigen test negative" 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, (June 24, 2020)
- Alex Walker, (June 24, 2020)
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 |
|---|---|
| Y20d2 | SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) RNA (ribonucleic acid) detection result negative |
| Y22a2 | Coronavirus disease 19 caused by severe acute respiratory syndrome coronavirus 2 excluded by laboratory test (situation) |
| Y23f4 | SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) detection result negative |
| Y2a3c | SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) RNA (ribonucleic acid) detection result negative |
| Y269e | SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) antigen detection result negative |
| Y26a2 | SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) antibody detection result negative |
Codes not in the full codelist are in faint grey.