These codes are not intended to be mandatory, but are to be used as a starting point for the identification of Acute Bronchitis in routine Electronic Health Record (EHR). Each study may differ in the sensitivity and specificity of the coding required.

According to the National Institute for Health and Care Excellence (NICE) guidelines and the British Medical Journal (BMJ), Acute Bronchitis is defined as a lower respiratory tract infection which causes inflammation in the bronchial airways. It is a clinical diagnosis characterized by cough resulting from acute inflammation of the trachea and large airways but with no evidence of pneumonia. It is therefore recommended that these codes are used for individuals with a respiratory tract infection restricted to trachea and large airways.

https://cks.nice.org.uk/topics/chest-infections-adult/background-information/definition/

https://bestpractice.bmj.com/topics/en-gb/135

Not found code search

• Publications in 2020-2021 identified in PubMed

• Zhuo C, Wei X, Zhang Z, Hicks JP, Zheng J, Chen Z, Haldane V, Walley J, Guan Y, Xu H, Zhong N. An antibiotic stewardship programme to reduce inappropriate antibiotic prescribing for acute respiratory infections in rural Chinese primary care facilities: study protocol for a clustered randomised controlled trial. Trials. 2020 May 12;21(1):394. doi: 10.1186/s13063-020-04303-4. PMID: 32398065; PMCID: PMC7216131.

• Code repositories

• Repository- Manchester ClinicalCodes - Description- Risks of smoking and benefits of smoking cessation on hospitalisations for cardiovascular events and respiratory infection in patients with rheumatoid arthritis: a retrospective cohort study using the Clinical Practice Research Datalink - Conditions- Respiratory tract infection - Publication- https://doi.org/10.1136/rmdopen-2017-000506 - Clinical codes- ICD-10

• Repository- Manchester ClinicalCodes - Description- Smoking-related mortality in patients with early rheumatoid arthritis – a retrospective cohort study using the Clinical Practice Research Datalink - Conditions- Respiratory tract infection - Publication- https://doi.org/10.1002/acr.22882 - Clinical codes- ICD-10

• Repository- Manchester ClinicalCodes - Description- Antibiotic prescribing for common infections in UK general practice: variability and drivers - Conditions- LRTI - Publication- https://doi.org/10.1093/jac/dkz163 - Clinical codes- Read Version 2

• Repository- Oxford-RCGP RSC - Description- Surveillance & acute pathways of care theme - Conditions- Bronchitis-WRpt - Publication- - Clinical codes-

• Repository- HDR UK National Phenomics Resource Project - Description- A chronological map of 308 physical and mental health conditions from 4 million individuals in the English National Health Service - Conditions- Bacterial diseases (excl TB) - Publication- https://doi.org/10.1016/S2589-7500(19)30012-3 - Clinical codes- ICD-10

• Repository- HDR UK National Phenomics Resource Project - Description- A chronological map of 308 physical and mental health conditions from 4 million individuals in the English National Health Service - Conditions- Lower respiratory tract infections - Publication- https://doi.org/10.1016/S2589-7500(19)30012-3 - Clinical codes- ICD-10

• Repository- HDR UK National Phenomics Resource Project - Description- A chronological map of 308 physical and mental health conditions from 4 million individuals in the English National Health Service - Conditions- Other or unspecified infectious organisms - Publication- https://doi.org/10.1016/S2589-7500(19)30012-3 - Clinical codes- ICD-10

• Repository- HDR UK National Phenomics Resource Project - Description- A chronological map of 308 physical and mental health conditions from 4 million individuals in the English National Health Service - Conditions- Viral diseases (excl chronic hepatitis/HIV) - Publication- https://doi.org/10.1016/S2589-7500(19)30012-3 - Clinical codes- ICD-10

• Repository- OpenSAFELY - Description- Codes indicating a diagnosis of a lower respiratory tract infection excluding pneumonia - Conditions- Lower respiratory tract infection - Publication- - Clinical codes- CTV3 (Read V3) with TPP extensions

• Repository- LSHTM Data Compass - Description- Read codes and terms for an lower respiratory tract infection (LRTI) (exacerbations algorithm) (CPRD) - Conditions- Lower respiratory tract infection - Publication- https://doi.org/10.17037/DATA.00001652 - Clinical codes- CPRD GOLD Medcodes

• Repository- LSHTM Data Compass - Description- Read codes for lower respiratory tract infections - Conditions- Lower respiratory tract infection - Publication- https://doi.org/10.17037/DATA.00002049 - Clinical codes- CPRD GOLD Medcodes

• Repository- LSHTM Data Compass - Description- ICD-10 codes for lower respiratory tract infections - Conditions- Lower respiratory tract infection - Publication- https://doi.org/10.17037/DATA.00002050 - Clinical codes- ICD-10