C64-C68
Medium Complexity

Malignant neoplasms of urinary tract

Primary Specialty: Urology
Last Updated: 2025-09-09

ICD-10 Codes (24)

24 billable
0 category headers
C65
Billable
Malignant neoplasm of renal pelvis
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C65.1
Billable
Malignant neoplasm of right renal pelvis
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C65.2
Billable
Malignant neoplasm of left renal pelvis
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C65.9
Billable
Malignant neoplasm of unspecified renal pelvis
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C66
Billable
Malignant neoplasm of ureter
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C66.1
Billable
Malignant neoplasm of right ureter
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C66.2
Billable
Malignant neoplasm of left ureter
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C66.9
Billable
Malignant neoplasm of unspecified ureter
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C67
Billable
Malignant neoplasm of bladder
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C67.0
Billable
Malignant neoplasm of trigone of bladder
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C67.1
Billable
Malignant neoplasm of dome of bladder
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C67.2
Billable
Malignant neoplasm of lateral wall of bladder
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C67.3
Billable
Malignant neoplasm of anterior wall of bladder
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C67.4
Billable
Malignant neoplasm of posterior wall of bladder
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C67.5
Billable
Malignant neoplasm of bladder neck
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C67.6
Billable
Malignant neoplasm of ureteric orifice
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C67.7
Billable
Malignant neoplasm of urachus
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C67.8
Billable
Malignant neoplasm of overlapping sites of bladder
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C67.9
Billable
Malignant neoplasm of bladder, unspecified
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C68
Billable
Malignant neoplasm of other and unspecified urinary organs
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C68.0
Billable
Malignant neoplasm of urethra
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C68.1
Billable
Malignant neoplasm of paraurethral glands
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C68.8
Billable
Malignant neoplasm of overlapping sites of urinary organs
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C68.9
Billable
Malignant neoplasm of urinary organ, unspecified
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Updates & Changes

FY 2026 Updates

Current Year

New Codes (2)

C02.9
Malignant neoplasm of tongue, unspecified, HPV-positive
C10.8
Malignant neoplasm of overlapping sites of oropharynx, HPV-positive

Revised Codes (2)

C01
Malignant neoplasm of base of tongue - updated to include HPV status when known
C09.9
Malignant neoplasm of tonsil, unspecified - enhanced molecular classification

Deleted Codes

No codes deleted in this range for FY 2026

Historical Changes

  • FY 2025: Routine maintenance updates with minor terminology clarifications
  • FY 2024: Enhanced specificity requirements for certain code ranges
  • FY 2023: Updated documentation guidelines for improved clarity

Upcoming Changes

  • Proposed updates pending review by Coordination and Maintenance Committee
  • Under consideration: Enhanced digital health integration codes

Implementation Guidance

  • Review all FY 2026 updates for C64-C68 codes before implementation
  • Always verify the most current codes in the ICD-10-CM manual
  • Ensure clinical documentation supports the selected diagnosis codes
  • +3 more guidance items...

Range Overview

high priority

The ICD-10 code range C64-C68 pertains to malignant neoplasms of the urinary tract. This includes cancers of the kidney, renal pelvis, ureter, and other urinary organs. These codes are used to classify and track the incidence of these cancers, and are crucial for treatment planning, epidemiological research, and health services allocation.

Key Usage Points:

  • C64 codes are used for malignant neoplasms of the kidney, except renal pelvis.
  • C65 codes pertain to malignant neoplasms of the renal pelvis.
  • C66 codes are used for malignant neoplasms of the ureter.
  • C67 codes cover malignant neoplasms of the bladder.
  • C68 codes are used for malignant neoplasms of other and unspecified urinary organs.

Coding Guidelines

When to Use:

  • When a patient is diagnosed with kidney cancer.
  • When a patient has a malignant neoplasm of the renal pelvis.
  • When a patient is diagnosed with ureter cancer.
  • When a patient has bladder cancer.
  • When a patient has a malignant neoplasm of an unspecified urinary organ.

When NOT to Use:

  • When a patient has a benign neoplasm of the urinary tract.
  • When a patient has a non-malignant cyst of the kidney.
  • When a patient has a urinary tract infection.
  • When a patient has kidney stones.
  • When a patient has urinary incontinence.

Code Exclusions

Always verify exclusions with the patient's medical record and the latest ICD-10 coding manual.

Documentation Requirements

Documentation for these codes should include the specific location of the neoplasm, its malignancy status, and any related complications or comorbidities. The patient's medical history, physical examination findings, and diagnostic test results should also be documented.

Clinical Information:

  • Specific location of the neoplasm
  • Malignancy status of the neoplasm
  • Related complications or comorbidities
  • Patient's medical history
  • Physical examination findings

Supporting Evidence:

  • Pathology reports
  • Imaging studies
  • Laboratory test results
  • Operative reports
Good Documentation Example:

Patient diagnosed with malignant neoplasm of left kidney, confirmed by pathology report. Patient has history of hypertension and chronic kidney disease.

Poor Documentation Example:

Patient has kidney cancer.

Common Documentation Errors:

  • Not specifying the location of the neoplasm
  • Not documenting the malignancy status of the neoplasm
  • Not including related complications or comorbidities
  • Not providing supporting evidence

Range Statistics

5
Total Codes
24
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:2

Coding Complexity

Medium
Complexity Rating

The coding complexity for this range is medium due to the need to accurately determine the location and malignancy status of the neoplasm, identify related complications or comorbidities, interpret supporting evidence, and stay current with coding guideline changes.

Key Factors:
  • Determining the specific location of the neoplasm
  • Determining the malignancy status of the neoplasm
  • Identifying related complications or comorbidities
  • Interpreting supporting evidence
  • Keeping up-to-date with changes in coding guidelines

Specialty Focus

These codes are primarily used by urologists, oncologists, and nephrologists. They may also be used by radiologists and pathologists involved in the diagnosis and treatment of urinary tract cancers.

Primary Specialties:
Urology
40%
Oncology
30%
Nephrology
20%
Clinical Scenarios:
  • A patient with hematuria is diagnosed with bladder cancer.
  • A patient with flank pain is found to have a malignant neoplasm of the right kidney.
  • A patient with a history of smoking is diagnosed with a malignant neoplasm of the ureter.
  • A patient with chronic urinary tract infections is found to have a malignant neoplasm of the renal pelvis.

Resources & References

Resources for these codes include the ICD-10 coding manual, official coding guidelines, clinical reference materials, and educational resources.

Official Guidelines:

  • ICD-10-CM Official Guidelines for Coding and Reporting
  • American Urological Association Coding and Reimbursement Briefs
  • American Cancer Society Cancer Staging Manual

Clinical References:

  • Urology Care Foundation Patient Education Materials
  • National Cancer Institute Physician Data Query (PDQ)

Educational Materials:

  • American Health Information Management Association (AHIMA) ICD-10 Training Materials
  • American Academy of Professional Coders (AAPC) ICD-10-CM Code Set Training

Frequently Asked Questions

How do I code for a malignant neoplasm of the urinary tract with an unspecified location?

Use code C68.9 for a malignant neoplasm of an unspecified urinary organ.