C64 Malignant neoplasm of kidney, except renal pelvis

The ICD-10-CM code for Malignant neoplasm of kidney, except renal pelvis is C64 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Chapter

2: Neoplasms (C00-D49)

Section

C64-C68: Malignant neoplasms of urinary tract (C64-C68)

Category C64

4 codes (3 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to C64:

• Nephroblastoma (epithelial) (mesenchymal)
• Wilms' tumor
• Nephroma
• Adenocarcinoma › renal cell
• Tumor › Wilms'
• Carcinoma (malignant) › renal cell
• Tumor › Grawitz's

Official Coding Guidelines

Tx of primary site (TOC entry)

a. Admission/Encounter for treatment of primary site ............................................................. 33

Tx of secondary site (TOC entry)

b. Admission/Encounter for treatment of secondary site .......................................................... 33

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool