Codes to define gastrointestinal bleeding in ONS death data.

Codes indicating a diagnosis of Temporal Arteritis or Giant Cell Arteritis

This codelist aims to identify glucocorticoids that are associated with a high risk of osteoporosis when administered on a long-term basis.

A SNOMED CT codelist for patients receiving monitoring of glycated haemoglobin (HbA1c) tests.

A SNOMED CT codelist for patients receiving monitoring of glycated haemoglobin (HbA1c) tests, which contains a numerical value using the newer IFCC units.

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.

This codelist contains all subcutaneous formulations of glycopyrronium.

Following an increase in cases of [Scarlet Fever and invasive Group A Strep in the UK](https://ukhsa.blog.gov.uk/2022/12/05/group-a-strep-what-you-need-to-know/) this codelist aims to identify patients who have had a possible diagnosis of Streptococcal sore throat.

We have taken a pragmatic approach where by codes for sore throat/pharyngitis/tonsilitis have been included where an alternative cause for the sore throat is not stated (eg. Viral sore throat). This codelist will be used in conjun…

dm+d codelist for guanfacine

CTV3 codelist for Guillain Barre syndrome

To be used in conjunction with ICD-10 code G61.0 'Guillain Barre syndrome'

Guillain-Barre syndrome ICD-10 codelist for use with hospital admissions and mortality data

Codes indicating a diagnosis of HIV

Automatically-generated equivalent of [HIV](/codelist/opensafely/hiv/)

This codelist contains codes used to indicate a HIV diagnosis.

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