Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Risk Adjustment (CMS-HCC)

Payment categories this diagnosis maps to under CMS-HCC V28, payment year 2026.

HCC 17 — Cancer Metastatic to Lung, Liver, Brain, and Other Organs; Acute Myeloid Leukemia Except Promyelocytic (supersedes HCC 18, HCC 19, HCC 20, HCC 21, HCC 22, HCC 23)

Other models: CMS-HCC V22 HCC 8 · RxHCC V08 HCC 17

Risk scores depend on the enrollee's full accepted diagnosis set and segment; a category mapping alone does not determine payment.

Secondary malignant neoplasm of right kidney and renal pelvis is a billable ICD-10-CM diagnosis code (C79.01).

Sequencing, inclusion, and exclusion notes published for C79.01 in the official ICD-10-CM tabular list.

Conditions that can never be reported with this code; the two are mutually exclusive.

Official ICD-10-CM classifications closest to C79.01 in its code family, with their registry titles.

C79 — Secondary malignant neoplasm of other and unspecified sites
C79.0 — Secondary malignant neoplasm of kidney and renal pelvis
C79.00 — Secondary malignant neoplasm of unspecified kidney and renal pelvis
C79.02 — Secondary malignant neoplasm of left kidney and renal pelvis
C79.1 — Secondary malignant neoplasm of bladder and other and unspecified urinary organs
C79.10 — Secondary malignant neoplasm of unspecified urinary organs
C79.11 — Secondary malignant neoplasm of bladder
C79.19 — Secondary malignant neoplasm of other urinary organs
C79.2 — Secondary malignant neoplasm of skin
C79.3 — Secondary malignant neoplasm of brain and cerebral meninges

Anatomical sites from the official ICD-10-CM Table of Neoplasms that map to this code, with the matching behavior column.