Heart failure codelist creation

Author: Monica Iyer
Last updated: May 14, 2026
Data source: CPRD Aurum

Variable created as part of eFI2

1. Mapped the given eFI2 SNOMED codes to medcodes using March 2026 codebrowswer
2. Merged resulting codelist with GGL's previously-generated codelist from infections/mental health study (2025)
3. De-duplicated
4. New codes reviewed by CWG May 2026

The columns Otherinstructions, TimeConstraintyears, and AgeLimit refer to additional criteria based on eFI2.

GGL readme:
Heart failure codelist from Exeter University Diabetes- Comorbidities codelists
https://github.com/Exeter-Diabetes/CPRD-Codelists/blob/main/Medcodes/Comorbidities/exeter_medcodelist_heartfailure.txt
