OpenCodelists

Welcome to OpenCodelists, created by OpenSAFELY for creating and sharing codelists.

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Below, you'll find all the codelists that have been used in OpenSAFELY research to date.

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Corticosteroid drug codes dm+d
Taken from the `C19CORSTEDRUG_COD` NHS drug refset. Contains public sector information licensed under the UK Open Government Licence v3.0 (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
Published by NHS Drug Refsets
Cough SNOMED CT
Asthma exacerbations codes derived by Hannah Whittaker (Imperial College London) and reviewed by Jenni Quint (Imperial College London) for CONVALESENCE Long Covid EHR project
Cranial Surgery - Destruction of pituitary gland (Clean) (B02) OPCS-4
Procedure category: Cranial Surgery - Incision through the skull to excise, repair, or explore the brain, excludes taps or punctures.

Procedure subcategory: Destruction of pituitary gland (Clean) (B02)
Cranial Surgery - Drainage of extradural space (Clean) (A40) OPCS-4
Procedure category: Cranial Surgery - Incision through the skull to excise, repair, or explore the brain, excludes taps or punctures.

Procedure subcategory: Drainage of extradural space (Clean) (A40)
Cranial Surgery - Drainage of lesion of tissue of brain (Clean) (A05) OPCS-4
Procedure category: Cranial Surgery - Incision through the skull to excise, repair, or explore the brain, excludes taps or punctures.

Procedure subcategory: Drainage of lesion of tissue of brain (Clean) (A05)
Cranial Surgery - Drainage of subdural space (Clean) (A41) OPCS-4
Procedure category: Cranial Surgery - Incision through the skull to excise, repair, or explore the brain, excludes taps or punctures.

Procedure subcategory: Drainage of subdural space (Clean) (A41)
Cranial Surgery - Excision of lesion of tissue of brain (Clean) (A02) OPCS-4
Procedure category: Cranial Surgery - Incision through the skull to excise, repair, or explore the brain, excludes taps or punctures.

Procedure subcategory: Excision of lesion of tissue of brain (Clean) (A02)
Cranial Surgery - Excision of pituitary gland (Clean) (B01) OPCS-4
Procedure category: Cranial Surgery - Incision through the skull to excise, repair, or explore the brain, excludes taps or punctures.

Procedure subcategory: Excision of pituitary gland (Clean) (B01)
Cranial Surgery - Extirpation of lesion of meninges of brain (Clean) (A38) OPCS-4
Procedure category: Cranial Surgery - Incision through the skull to excise, repair, or explore the brain, excludes taps or punctures.

Procedure subcategory: Extirpation of lesion of meninges of brain (Clean) (A38)
Cranial Surgery - Major excision of tissue of brain (Clean) (A01) OPCS-4
Procedure category: Cranial Surgery - Incision through the skull to excise, repair, or explore the brain, excludes taps or punctures.

Procedure subcategory: Major excision of tissue of brain (Clean) (A01)
Cranial Surgery - Method of image control (Y53) OPCS-4
Procedure category: Cranial Surgery - Incision through the skull to excise, repair, or explore the brain, excludes taps or punctures.

Procedure subcategory: Method of image control (Y53)
Cranial Surgery - Minimal access approach (Y76) OPCS-4
Procedure category: Cranial Surgery - Incision through the skull to excise, repair, or explore the brain, excludes taps or punctures.

Procedure subcategory: Minimal access approach (Y76)
Cranial Surgery - Neurostimulation of brain (Clean) (A09) OPCS-4
Procedure category: Cranial Surgery - Incision through the skull to excise, repair, or explore the brain, excludes taps or punctures.

Procedure subcategory: Neurostimulation of brain (Clean) (A09)
Cranial Surgery - Open biopsy of lesion of tissue of brain (Clean) (A04) OPCS-4
Procedure category: Cranial Surgery - Incision through the skull to excise, repair, or explore the brain, excludes taps or punctures.

Procedure subcategory: Open biopsy of lesion of tissue of brain (Clean) (A04)
Cranial Surgery - Opening of cranium (Clean) (V03) OPCS-4
Procedure category: Cranial Surgery - Incision through the skull to excise, repair, or explore the brain, excludes taps or punctures.

Procedure subcategory: Opening of cranium (Clean) (V03)