Where used:
| Class | POSTCODE IN GEOGRAPHIC AREA | references in description POSTCODE |
| Data Element | LOWER LAYER SUPER OUTPUT AREA (RESIDENCE) | references in description POSTCODE |
| Supporting Information | Lower Layer Super Output Area | references in description POSTCODE |
| Supporting Information | Middle Layer Super Output Area | references in description POSTCODE |
| Supporting Information | NHS Postcode Directory | references in description POSTCODE |
| Supporting Information | Organisation Data Service | references in description POSTCODE |
| Supporting Information | Output Area | references in description POSTCODE |