Where used:
| Class | CONSULTANT EPISODE (HOSPITAL PROVIDER) | references in description PATIENT PROCEDURE CODING SIGNIFICANCE |
| Class | OUT-PATIENT ATTENDANCE CONSULTANT | references in description PATIENT PROCEDURE CODING SIGNIFICANCE |
| Class | PATIENT PROCEDURE | references in description PATIENT PROCEDURE CODING SIGNIFICANCE |
| Class | PATIENT PROCEDURE CLASSIFICATION | references in description PATIENT PROCEDURE CODING SIGNIFICANCE |
| Data Element | PRIMARY OPERATION (OPCS-4) | references in description PATIENT PROCEDURE CODING SIGNIFICANCE |
| Data Element | PRIMARY PROCEDURE (OPCS) | references in description PATIENT PROCEDURE CODING SIGNIFICANCE |
| Data Element | PRIMARY PROCEDURE (READ) | references in description PATIENT PROCEDURE CODING SIGNIFICANCE |