Codes indicating current, adult asthma.

Codelist indicating current COPD.

Codes indicating a diagnosis of cystic fibrosis or associated diseases such as primary ciliary dyskinesia

This codelist defines cystic fibrosis and is designed for specificity.
It was developed for the vitamin D study.

This codelist is a list of [NHS dm+d codes](https://ebmdatalab.net/what-is-the-dmd-the-nhs-dictionary-of-medicines-and-devices/) for "disease modifying antirheumatic drugs" more commonly referred to as DMARDs.

This is a codelist that identifies all preparations from the NHS dictionary of medicines and devices for dabigatran etexilate , one of the Directing Oral Anticoagulants which are often referred to as DOACs.

Codes indicating dementia

This codelist captures Dementia and Alzheimers Disease. Discussion here: https://github.com/opensafely/codelist-development/issues/61

Automatically-generated equivalent of [Dementia](/codelist/opensafely/dementia/)

All products containing denosumab.

The following codes are used to indicate Depression

dm+d codelist for dexamfetamine

Codes indicating diagnosis of permanent diabetes

Automatically-generated equivalent of [Diabetes](/codelist/opensafely/diabetes/)