Is C64.9 a billable ICD-10-CM code?

Yes. C64.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does C64.9 sit in the tabular list?

Neoplasms (C00-D49), in the block Malignant neoplasms of urinary tract (C64-C68).

What cannot be coded together with C64.9?

C64.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above C64.9 (C64) and apply to it just the same.

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.

Excludes1 inherited from the categories above C64.9

These are not written on C64.9, but they bind it: a note on a category applies to every code beneath it. Billing C64.9 with anything listed here is a denial.

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.

Medicare coverage

C64.9 is named in 59 Medicare coverage policies — 59 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

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

C64.9 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share C64. If C64.9 is not quite right, the correct code is usually one of these.

Questions about C64.9

Is C64.9 a billable ICD-10-CM code?: Yes. C64.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does C64.9 sit in the tabular list?: Neoplasms (C00-D49), in the block Malignant neoplasms of urinary tract (C64-C68).
What cannot be coded together with C64.9?: C64.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above C64.9 (C64) and apply to it just the same.