MCMCB Pro
C65

C65Malignant neoplasm of renal pelvis

Non-billable headerICD-10-CM

C65 is a non-billable header ICD-10-CM code for malignant neoplasm of renal pelvis. It cannot be billed on its own: choose one of the more specific child codes below.

Includes

Conditions this code covers.

  • malignant neoplasm of pelviureteric junction
  • malignant neoplasm of renal calyces

Other codes that can never be billed with C65

These codes carry an Excludes1 note pointing at C65. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C65 alone.

  • C64Malignant neoplasm of kidney, except renal pelvis

Risk adjustment

C65 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead C65

3 child codes. Green means billable.

Questions about C65

Is C65 a billable ICD-10-CM code?
No. C65 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does C65 sit in the tabular list?
Neoplasms (C00-D49), in the block Malignant neoplasms of urinary tract (C64-C68).
ICD-10-CMFY2026-Apr· effective April 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.