2027 ICD-10-CM Diagnosis Code C64Malignant neoplasm of kidney, except renal pelvis

ICD-10-CM Codes›C00–D49›C64-C68›C64

ICD-10-CM C64
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

C64 is a non-billable ICD-10-CM category code for malignant neoplasm of kidney, except renal pelvis, so it cannot be submitted on claims. Use a more specific code from this category instead, such as C64.1, C64.2, and C64.9.

Code Identity

ICD-10-CM Code
C64
Billable Status
No — Non-Billable Category
Code Describes
Malignant neoplasm of kidney, except renal pelvis
Short Description
Malignant neoplasm of kidney, except renal pelvis
Same as the full description in the CMS dataset.
Chapter
C64-C68
Malignant neoplasms of urinary tract

Code Classification

ChapterC00–D49Neoplasms
SectionC64-C68Malignant neoplasms of urinary tract
CategoryC64Malignant neoplasm of kidney, except renal pelvis
This CodeC64Malignant neoplasm of kidney, except renal pelvis

Specific Coding for Malignant neoplasm of kidney, except renal pelvisOverview

Non-specific codes like C64 require more characters. Use one of these billable codes instead:

  • Use C64.1 for Malignant neoplasm of right kidney, except renal pelvis

  • Use C64.2 for Malignant neoplasm of left kidney, except renal pelvis

  • Use C64.9 for Malignant neoplasm of unspecified kidney, except renal pelvis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to C64: its own notes plus those printed at Chapter 2. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

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

Notes

General instructions on how these codes are used.

From Chapter 2 (C00-D49) Neoplasms applies to 1,730 codes
  • Functional activity
  • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
  • Morphology [Histology]
  • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
  • Primary malignant neoplasms overlapping site boundaries
  • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
  • Malignant neoplasm of ectopic tissue
  • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name C64, its category, or a range that includes it.

Applicable To 3

These notes mention C64.

  • Z80.5 Family history of malignant neoplasm of urinary tract
    Conditions classifiable to C64-C68
  • Z85.5 Personal history of malignant neoplasm of urinary tract
    Conditions classifiable to C64-C68
  • Z85.528 Personal history of other malignant neoplasm of kidney
    Conditions classifiable to C64

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical InformationClinical

  • Wilms Tumor

    a malignant kidney tumor, caused by the uncontrolled multiplication of renal stem (blastemal), stromal (stromal cells), and epithelial (epithelial cells) elements. however, not all three are present in every case. several genes or chromosomal areas have been associated with wilms tumor which is usually found in childhood as a firm lump in a child's side or abdomen.

Patient EducationClinical

Kidney Cancer

You have two kidneys. They are fist-sized organs on either side of your backbone above your waist. The tubes inside filter and clean your blood, taking out waste products and making urine. Kidney cancer forms in the lining of tiny tubes inside your kidneys.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About C64Overview

What is the ICD-10 code for malignant neoplasm of kidney, except renal pelvis?

C64 is the ICD-10-CM category for malignant neoplasm of kidney, except renal pelvis, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is C64 (Malignant neoplasm of kidney, except renal pelvis) a billable code?

No. This is a category header that groups the codes for malignant neoplasm of kidney, except renal pelvis, and headers cannot be submitted on claims. Claims for malignant neoplasm of kidney, except renal pelvis need a more specific code from this category, such as C64.1, C64.2, and C64.9.

Can C64 be reported with C7A.093?

Not as a rule. The Excludes1 note on C64 lists "malignant carcinoid tumor of the kidney (C7A.093)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).