This derived field contains the code for the strategic health authority (SHA) in which the patient lived immediately before admission. It is derived from the patient's postcode in the field homeadd. In 2013 following a reorganisation of health areas, Strategic Health Authorities were abolished. This field has continued to be derived after this date as a 'frozen' geography.|This derived field contains the code for the strategic health authority (SHA) in which the patient lived immediately before admission. It is derived from the patient's postcode in the field homeadd (postcode of patient). In 2013 following a reorganisation of health areas, Strategic Health Authorities were abolished. This field has continued to be derived after this date as a 'frozen' geography.

resstha