Where used:
| Attribute | CLINICAL CLASSIFICATION CODE | references in description PROCEDURE CODING |
| Data Element | FOURTH OPERATION (OPCS-4) (deleted) | references in description PROCEDURE CODING |
| Data Element | HRG DOMINANT GROUPING VARIABLE-PROCEDURE | references in description PROCEDURE CODING |
| Data Element | NUTRITIONAL PROCEDURE (OPCS) | references in description PROCEDURE CODING |
| Data Element | PRIMARY OPERATION (OPCS-4) | references in description PROCEDURE CODING |
| Data Element | PRIMARY PROCEDURE (OPCS) | references in description PROCEDURE CODING |
| Data Element | PRIMARY PROCEDURE (READ) | references in description PROCEDURE CODING |
| Data Element | PROCEDURE (OPCS) | references in description PROCEDURE CODING |
| Data Element | PROCEDURE (READ) | references in description PROCEDURE CODING |
| Data Element | PROCEDURE (READ FIRST MOST RECENT) | references in description PROCEDURE CODING |
| Data Element | PROCEDURE CODING (DIABETES RELEVANT OPCS-4) | references in description PROCEDURE CODING |
| Data Element | PROCEDURE CODING (DIABETES RELEVANT READ) | references in description PROCEDURE CODING |
| Data Element | SECOND OPERATION (OPCS-4) (deleted) | references in description PROCEDURE CODING |
| Data Element | THIRD OPERATION (OPCS-4) | references in description PROCEDURE CODING |
| Supporting Information | Clinical Coding Introduction | references in description PROCEDURE CODING |