Glycated haemoglobin (HbA1c) tests — IFCC standardised
- Coding system
- CTV3 (Read V3)
- Coding system release
- unknown
- Organisation
- OpenSAFELY
- Codelist ID
- opensafely/glycated-haemoglobin-hba1c-tests-ifcc
- Version ID
- 6d7287f8
Versions
- 6d7287f8
Description
A CTV3 codelist for patients receiving monitoring of glycated haemoglobin (HbA1c) tests using reference methods standardised by the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC).
Note that for tests before 2018, test values in the East region appear to be recorded on a different scale (approximately 4 to 8-times greater than mean values in other regions). This issue is being investigated.
Methodology
Codes under the CTV3 concept for IFCC-standardised HbA1c were included.
References
Signed off by
- Robin Park, (Dec. 16, 2021)
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.
| code | term |
|---|---|
| XaPbt | Haemoglobin A1c level - IFCC standardised |
| Xaezd | HbA1c level (diagnostic reference range) - IFCC standardised |
| Xaeze | HbA1c level (monitoring ranges) - IFCC standardised |
Codes not in the full codelist are in faint grey.