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Pneumonia ICD-10 codes.

This codelist will be used to extract patients with Posttraumatic stress disorder (PTSD ) using OpenSAFELY. The codelist will be applied in studies looking at Trends and variations in the assessment, diagnosis, and treatment of PTSD.

SNOMED codes from the NHS Digital Diabetes Audit data template.

This codelist contains the DM&D list of all formulations of prochlorperazine, which is an antipsychotic used for the treatment of psychosis and also nausea and vomiting. Due to its common use in diverse indications we have kept it separate from other antipsychotics.

See [Prochlorperazine codelist](https://codelists.opensafely.org/codelist/user/orlamac/prochlorperazine/40898922/)

A SNOMED CT codelist for patients who have been coded with a numeric value pertaining to a Prostate Specific Antigen (PSA) test.

This is a list of snomed / [NHS dictionary of medicines and devices](https://ebmdatalab.net/what-is-the-dmd-the-nhs-dictionary-of-medicines-and-devices/#:~:text=dm%2Bd%20is%20the%20standard,packs%20of%20medicines%20and%20devices.) for oral proton pump inhibtors (PPI).

This is a list of SNOMED-CT codes used to identify diagnosis of psoriatic arthritis.

The following codes are used to indicate Psychosis, schizophrenia + bipolar affective disease

Codelist containing SNOMED codes relating to COVID Oximetry @home.

These should be used for prototyping and monitoring of the uptake of these codes.

Codelist containing SNOMED codes relating to alternative pulse oximetry codes before the introduction of COVID Oximetry @home codes

Codes indicating diagnosis of rheumatoid arthritis or SLE or psoriasis