Table S2.
Read codes for exacerbations
| Medical code | Read code | Read term |
|---|---|---|
| 1446 | H312200 | Acute exacerbation of chronic obstructive airways disease |
| 7884 | H3y1.00 | Chron obstruct pulmonary dis wth acute exacerbation, unspec |
| 100123 | 8BP8.00 | Antibiotic therapy for acute pulmonary exacerbation |
| 11019 | 8H2R.00 | Admit COPD emergency |
| 19003 | 66Ye.00 | Emergency COPD admission since last appointment |
| 19106 | 66Yd.00 | COPD accident and emergency attendance since last visit |
| 46036 | 66Yi.00 | Multiple COPD emergency hospital admissions |
Notes: Data from the CPRD database (terms and wording are unedited, to match the original source).
Abbreviations: chron, chronic; COPD, chronic obstructive pulmonary disease; CPRD, Clinical Practice Research Datalink; dis, disease; obstruct, obstructive; unspec, unspecified; wth, with.