| Level/ Typ | Code | Anzeigename | Codesystem | Beschreibung |
| 0-A | 445200009 | Status of residual neoplasm (observable entity) | SNOMED Clinical Terms | Residual Tumor (R) classification UICC, TNM Suppl. 4th ed. 2012<br clear="none" /> |
| 1-L | 384620009 | Surgical circumferential margin involved by malignant neoplasm (tumor present 0-1 mm from CRM) (finding) | SNOMED Clinical Terms | No residual tumor:  R0<=1mm CRM positive |
| 1-L | 415675004 | Surgical circumferential margin is closest uninvolved margin to malignant neoplasm (finding) | SNOMED Clinical Terms | No residual tumor: R0>1mm CRM negative<br clear="none" /> |
| 0-L | 258254000 | Residual tumor stage R0 (finding) | SNOMED Clinical Terms | No residual tumor |
| 0-L | 278271003 | Residual tumor stage R1 (finding) | SNOMED Clinical Terms | Microscopic residual Tumor<br clear="none" /> |
| 1-L | R1(is) | R1(is) | UICC 7. Auflage | |
| 1-L | R1(cy+) | R1(cy+) | UICC 7. Auflage | |
| 0-L | 278272005 | Residual tumor stage R2 (finding) | SNOMED Clinical Terms | Macroscopic residual tumor: R2a local, R2b distant, R2c in both sites<br clear="none" /> |
| 0-L | 258253006 | Residual tumor stage RX (finding) | SNOMED Clinical Terms | Presence of residual Tumor cannot be assessed<br clear="none" /> |
