This is a list of all the emergency OPCS-4 codes (as defined by RCS priority groups 1a and 1b), excluding the complication OPCS-4 codes for amputations, dislocations, compartment syndrome and washouts

OPCS-4 codes indicating an emergency or immediate procedure. Can be used in addition to primary procedure code

DEFINITION: Surgery for peripheral artery disease

Variables: (1) a binary variable denoting the presence of one of the codes at any point in the patient record. (2) the earliest date of such a code.

OPCS-4 codes indicating planned staged OR revision procedure. Can be used in addition to primary procedure code

Code list aiming to identify individuals consulting complaining of symptoms of post-traumatic stress disorder

Code list aiming to identify individuals consulting complaining of abdominal pain.

Code list aiming to identify individuals consulting complaining of anxiety symptoms and with anxiety diagnoses.

Code list aiming to identify individuals consulting complaining of being short of breath.

Code list aiming to identify individuals consulting complaining of chest pain. Aiming to identify unexplained chest pain.

Code list aiming to identify individuals consulting complaining of chest tightness.

Code list aiming to identify individuals consulting complaining of cognitive impairment.

Code list aiming to identify individuals consulting complaining of cough.

Code list aiming to identify individuals consulting complaining of delirium.

Code list aiming to identify individuals consulting complaining of symptoms of depresson and with depression diagnoses.

Code list aiming to identify individuals consulting complaining of diarrhoea