ICD-10-CM Table of Neoplasms — R
Find the site first, then the column matching the behavior stated in the diagnosis. Behavior must come from the pathology report, not from the site alone.
31 entries.
| Term | Codes by circumstance |
|---|---|
| radius (any part) | Malignant, secondary:C79.51 |
| Rathke's pouch | Malignant, primary:C75.1Malignant, secondary:C79.89Ca in situ:D09.3Benign:D35.2Uncertain behavior:D44.3Unspecified behavior:D49.7 |
| rectosigmoid (junction) | Malignant, primary:C19Malignant, secondary:C78.5Ca in situ:D01.1Benign:D12.7Uncertain behavior:D37.5Unspecified behavior:D49.0 |
| rectosigmoid (junction), overlapping lesion with anus or rectum | Malignant, primary:C21.8 |
| rectouterine pouch | Malignant, primary:C48.1Malignant, secondary:C78.6Benign:D20.1Uncertain behavior:D48.4Unspecified behavior:D49.0 |
| rectovaginal septum or wall | Malignant, primary:C76.3Malignant, secondary:C79.89Ca in situ:D09.8Benign:D36.7Uncertain behavior:D48.7Unspecified behavior:D49.89 |
| rectovesical septum | Malignant, primary:C76.3Malignant, secondary:C79.89Ca in situ:D09.8Benign:D36.7Uncertain behavior:D48.7Unspecified behavior:D49.89 |
| rectum (ampulla) | Malignant, primary:C20Malignant, secondary:C78.5Ca in situ:D01.2Benign:D12.8Uncertain behavior:D37.5Unspecified behavior:D49.0 |
| rectum (ampulla), and colon | Malignant, primary:C19Malignant, secondary:C78.5Ca in situ:D01.1Benign:D12.7Uncertain behavior:D37.5Unspecified behavior:D49.0 |
| rectum (ampulla), overlapping lesion with anus or rectosigmoid junction | Malignant, primary:C21.8 |
| renal | Ca in situ:D09.19 |
| renal, calyx | Ca in situ:D09.19 |
| renal, hilus | Ca in situ:D09.19 |
| renal, parenchyma | Ca in situ:D09.19 |
| renal, pelvis | Ca in situ:D09.19 |
| respiratory, organs or system NEC | Malignant, primary:C39.9Malignant, secondary:C78.30Ca in situ:D02.4Benign:D14.4Uncertain behavior:D38.6Unspecified behavior:D49.1 |
| respiratory, tract NEC | Malignant, primary:C39.9Malignant, secondary:C78.30Ca in situ:D02.4Benign:D14.4Uncertain behavior:D38.5Unspecified behavior:D49.1 |
| respiratory, tract NEC, upper | Malignant, primary:C39.0Malignant, secondary:C78.30Ca in situ:D02.4Benign:D14.4Uncertain behavior:D38.5Unspecified behavior:D49.1 |
| retina | Malignant, secondary:C79.49Uncertain behavior:D48.7Unspecified behavior:D49.81 |
| retro-orbital | Malignant, primary:C76.0Malignant, secondary:C79.89Ca in situ:D09.8Benign:D36.7Uncertain behavior:D48.7Unspecified behavior:D49.89 |
| retrobulbar | Malignant, secondary:C79.49Uncertain behavior:D48.7Unspecified behavior:D49.89 |
| retrocecal | Malignant, primary:C48.0Malignant, secondary:C78.6Benign:D20.0Uncertain behavior:D48.3Unspecified behavior:D49.0 |
| retromolar (area) (triangle) (trigone) | Malignant, primary:C06.2Malignant, secondary:C79.89Ca in situ:D00.00Benign:D10.39Uncertain behavior:D37.09Unspecified behavior:D49.0 |
| retroperitoneal (space) (tissue) | Malignant, primary:C48.0Malignant, secondary:C78.6Benign:D20.0Uncertain behavior:D48.3Unspecified behavior:D49.0 |
| retroperitoneum | Malignant, primary:C48.0Malignant, secondary:C78.6Benign:D20.0Uncertain behavior:D48.3Unspecified behavior:D49.0 |
| retropharyngeal | Malignant, primary:C14.0Malignant, secondary:C79.89Ca in situ:D00.08Benign:D10.9Uncertain behavior:D37.05Unspecified behavior:D49.0 |
| retrovesical (septum) | Malignant, primary:C76.3Malignant, secondary:C79.89Ca in situ:D09.8Benign:D36.7Uncertain behavior:D48.7Unspecified behavior:D49.89 |
| rhinencephalon | Malignant, primary:C71.0Malignant, secondary:C79.31Benign:D33.0Uncertain behavior:D43.0Unspecified behavior:D49.6 |
| rib | Malignant, primary:C41.3Malignant, secondary:C79.51Benign:D16.7Uncertain behavior:D48.0Unspecified behavior:D49.2 |
| Rosenmuller's fossa | Malignant, primary:C11.2Malignant, secondary:C79.89Ca in situ:D00.08Benign:D10.6Uncertain behavior:D37.05Unspecified behavior:D49.0 |
| round ligament | Malignant, primary:C57.2Malignant, secondary:C79.82Benign:D28.2Uncertain behavior:D39.8Unspecified behavior:D49.59 |
Read from: CMS/CDC ICD-10-CM release files (tabular list, order file, addenda) — FY2027. All data sources · How to read the labels
Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources