MCMedicalCodingSoftware
C64.9

C64.9: Malignant neoplasm of unspecified kidney, except renal pelvis

Billable / specific codeICD-10-CMunspecified

C64.9 is a billable, specific ICD-10-CM code for malignant neoplasm of unspecified kidney, except renal pelvis. It is valid for submission on a claim.

Check C64.9 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above C64.9

A category’s note binds every code beneath it.

Written on C64: Malignant neoplasm of kidney, except renal pelvis

  • malignant carcinoid tumor of the kidney (C7A.093)
  • malignant neoplasm of renal calyces (C65.-)
  • malignant neoplasm of renal pelvis (C65.-)

Risk adjustment

C64.9 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 22 Bladder, Colorectal, and Other Cancers0.363 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Medicare coverage

C64.9 is named in 48 Medicare coverage policies: 48 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A52370Billing and Coding: Bevacizumab and biosimilars
  • A52399Billing and Coding: Denosumab (Prolia®, Xgeva®, Jubbonti®) and biosimilars
  • A52450Billing and Coding: Paclitaxel (e.g., Taxol®/Abraxane ™)
  • A52479Oral Anticancer Drugs - Policy Article

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under C64

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.