C66.1 MALIGNANT NEOPLASM OF RIGHT URETER

Code Information

  • Diagnosis Code: C66.1
  • Short Description: Malignant neoplasm of right ureter
  • Long Description: Malignant neoplasm of right ureter
  • Code Version: 2025 ICD-10-CM

The code C66.1 is VALID for claim submission

Code Classification

Synonyms

  • Bilateral primary malignant neoplasm of ureters
  • Primary malignant neoplasm of left ureter
  • Primary malignant neoplasm of right ureter
  • Primary malignant neoplasm of right ureter
  • Primary transitional cell carcinoma of right ureter
  • Primary transitional cell carcinoma of upper urinary tract
  • Primary transitional cell carcinoma of ureter
  • Transitional cell carcinoma of right ureter
  • Transitional cell carcinoma of ureter
  • Transitional cell carcinoma of ureter

Diagnostic Related Group(s)

The code C66.1 is grouped in the following Diagnostic Related Group(s) MS-DRG V43.0

  1. Kidney And Ureter Procedures For Neoplasm With Mcc (656)
  2. Kidney And Ureter Procedures For Neoplasm With Cc (657)
  3. Kidney And Ureter Procedures For Neoplasm Without Cc/mcc (658)
  4. Kidney And Urinary Tract Neoplasms With Mcc (686)
  5. Kidney And Urinary Tract Neoplasms With Cc (687)
  6. Kidney And Urinary Tract Neoplasms Without Cc/mcc (688)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
C66.1 Right Arrow 189.2 Malign neopl ureter
This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
C66 Malignant neoplasm of ureter
C66.2 Malignant neoplasm of left ureter
C66.9 Malignant neoplasm of unspecified ureter
This page was last updated on: 10/1/2025
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