Where used:
| Data Set | National Workforce Data Set | references in description POSTCODE |
| Data Element | ORGANISATION CODE (CODE OF COMMISSIONER) | references in description POSTCODE |
| Data Element | POSTCODE | references in description POSTCODE |
| Data Element | POSTCODE OF CORRESPONDENCE ADDRESS | references in description POSTCODE |
| Data Element | POSTCODE OF USUAL ADDRESS | references in description POSTCODE |
| Data Element | POSTCODE OF USUAL ADDRESS (AT DIAGNOSIS) | references in description POSTCODE |
| Supporting Information | CDS Data Duplication | references in description POSTCODE |