Documented Influenza illness
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/documented-influenza-illness
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Version Tag
- 2020-05-18
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Version ID
- 2313bf7e
Versions
About
Description
Codes indicating a diagnosis of influenza or influenza-like illness
Methodology
This codelist was derived by the following method:
- Read 2 Codelist provided by LSHTM. This was from Jennifer Davidson's list. In addition the following codes were added:
- Telephone consultation suspected influenza A virus subtype H1N1
- Telephone consultation for suspected swine flu
- Encephalitis due to influenza-specific virus not identified
- Encephalitis due to influenza-virus identified
- Codes from Quality Outcome Framework (QOF) were examined and no relevant terms were found
- Codes from SNOMED were taken by searching for relevant influenza terms and a list was created.
These 2 lists were mapped into CTV3 by TPP to create one list. This list was examined by 2 people and the following logic applied (see github issue for more detail):
References
Signed off by
- Caroline Morton, (May 18, 2020)
- Harriet Forbes, (May 18, 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.
| CTV3PreferredTermDesc | CTV3ID | CTV3Source |
|---|---|---|
| Acute myocarditis - influenzal | G5203 | CTV3Map_Code_And_Term |
| Avian influenza | XaMih | CTV3Map_Code_And_Term |
| Avian influenza virus nucleic acid detection | XaLT5 | CTV3Map_Code_And_Term |
| Encephalitis due to influenza-specific virus not identified | XaEGX | CTV3_Children |
| Encephalitis due to influenza-virus identified | XaC2H | CTV3Map_Code_And_Term |
| Influenza | H27.. | CTV3Map_Code_And_Term |
| Influenza A nucleic acid detection | XaYKq | CTV3Map_Code_And_Term |
| Influenza A virus H1N1 subtype detected | XaQVd | CTV3Map_Code_And_Term |
| Influenza A virus, other or untyped strain detected | XaPIR | CTV3Map_Code_And_Term |
| Influenza B nucleic acid detection | XaZMV | CTV3Map_Code_And_Term |
| Influenza B virus detected | XaPIS | CTV3Map_Code_And_Term |
| Influenza H1 virus detected | XaPIN | CTV3Map_Code_And_Term |
| Influenza H2 virus detected | XaPIO | CTV3Map_Code_And_Term |
| Influenza H3 virus detected | XaPIP | CTV3Map_Code_And_Term |
| Influenza H5 virus detected | XaPIQ | CTV3Map_Code_And_Term |
| Influenza NOS | XE0YK | CTV3Map_Code_And_Term |
| Influenza due to Influenza A virus subtype H1N1 | XaQQp | CTV3Map_Code_And_Term |
| Influenza with bronchopneumonia | H2700 | CTV3Map_Code_And_Term |
| Influenza with encephalopathy | H27y0 | CTV3Map_Code_And_Term |
| Influenza with gastrointestinal tract involvement | H27y1 | CTV3Map_Code_And_Term |
| Influenza with laryngitis | H2710 | CTV3Map_Code_And_Term |
| Influenza with other manifestations | H27y. | CTV3Map_Code_And_Term |
| Influenza with other manifestations NOS | H27yz | CTV3Map_Code_And_Term |
| Influenza with other respiratory manifestation | H271. | CTV3Map_Code_And_Term |
| Influenza with pharyngitis | H2711 | CTV3Map_Code_And_Term |
| Influenza with pneumonia NOS | H270z | CTV3Map_Code_And_Term |
| Influenza with pneumonia, influenza virus identified | H2701 | CTV3Map_Code_And_Term |
| Influenza with respiratory manifestations NOS | H271z | CTV3Map_Code_And_Term |
| Influenza-like symptoms | XaIBK | CTV3Map_Code_And_Term |
| Other specified pneumonia or influenza | H2y.. | CTV3Map_Code_And_Term |
| Pneumonia and influenza | H2... | CTV3Map_Code_And_Term |
| Pneumonia or influenza NOS | H2z.. | CTV3Map_Code_And_Term |
| Possible influenza A virus H1N1 subtype | XaQVc | CTV3Map_Code_And_Term |
| Suspected influenza A virus subtype H1N1 infection | XaQSm | CTV3Map_Code_And_Term |
| Telephne consultatn suspected influenza A virus subtype H1N1 | XaR6o | CTV3Map_Code_Only |
| [X]Flu+oth respiratory manifestations,'flu virus identified | Hyu04 | CTV3Map_Code_And_Term |
| [X]Influenza+oth respiratory manifestatns,virus not identifd | Hyu06 | CTV3Map_Code_And_Term |
| [X]Influenza+other manifestations,influenza virus identified | Hyu05 | CTV3Map_Code_And_Term |
| (Influenza NOS) or (influenza-like illness) | XE0ZJ | High_Level_SNOMED |
| (Influenza like illness) or (influenza NOS) | H27z. | High_Level_SNOMED |
| Avian influenza virus nucleic acid detection assay | Xab7R | CTV3_Children |
| Avian influenza virus ribonucleic acid detection assay | Xabob | CTV3_Children |
| Encephalitis due to influenza | XaC1s | CTV3Map_Code_And_Term |
| Flu-like illness NOS | XM0s0 | CTV3_Children |
| Influenza A nucleic acid detection assay | Xab85 | CTV3_Children |
| Influenza A virus ribonucleic acid detection assay | XabpY | CTV3_Children |
| Influenza B nucleic acid detection assay | Xab86 | CTV3_Children |
| Influenza B virus ribonucleic acid detection assay | XabpZ | CTV3_Children |
| Influenza NOS | XE0YK | CTV3Map_Code_Only |
| Influenza due to Influenza A virus subtype H1N1 | XaQQp | CTV3Map_Code_Only |
| Influenza due to pandemic influenza virus | XaeVL | CTV3_Children |
| Influenza due to seasonal influenza virus | XaeVM | CTV3_Children |
| Influenza due to zoonotic influenza virus | XaeVK | CTV3_Children |
| Influenza with pneumonia due to seasonal influenza virus | XaeVN | CTV3_Children |
| Influenza-like illness | XM0rz | CTV3Map_Code_Only |
| Influenza-like illness | XM0rz | CTV3Map_Code_And_Term |
| Influenzal pneumonia | H270. | CTV3Map_Code_Only |
| Influenzal pneumonia | H270. | CTV3Map_Code_And_Term |
| Pneumonia and influenza &/or pneumonia | XE0ZF | High_Level_SNOMED |
| Suspected influenza A virus subtype H1N1 infection | XaQSm | CTV3Map_Code_Only |
| Swine influenza | Y0b97 | CTV3_Children |
| Telephne consultatn suspected influenza A virus subtype H1N1 | XaR6o | CTV3Map_Code_And_Term |
| [X]Influenza with other manifestations, virus not identified | Hyu07 | CTV3Map_Code_And_Term |
Codes not in the full codelist are in faint grey.