Where used:
| Attribute | CLINICAL INTERVENTION DATE | references in description THIRD OPERATION (OPCS-4) |
| Class | OPERATIVE PROCEDURE | references in description THIRD OPERATION (OPCS-4) |
| Data Element | PRIMARY OPERATION (OPCS-4) | references in description THIRD OPERATION (OPCS-4) |
| Data Element | PROCEDURE CODING | references in description THIRD OPERATION (OPCS-4) |
| Data Element | THIRD OPERATION DATE | references in description THIRD OPERATION (OPCS-4) |
| Dataset | HES GENERAL EPISODE RECORD (deleted) | references in description THIRD OPERATION (OPCS-4) |