2023

  1. ICD-10-CM Codes
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  2. C00-D49
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  3. C64-C68
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  4. C66-
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  5. 2023 ICD-10-CM Diagnosis Code C66.1

2023 ICD-10-CM Diagnosis Code C66.1

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Malignant neoplasm of right ureter

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • C66.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2023 edition of ICD-10-CM C66.1 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of C66.1 - other international versions of ICD-10 C66.1 may differ.
The following code(s) above C66.1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to C66.1:
  • C00-D49
    2023 ICD-10-CM Range C00-D49

    Neoplasms

    Note
    • 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).
    Neoplasms
  • C66
    ICD-10-CM Diagnosis Code C66

    Malignant neoplasm of ureter

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • malignant neoplasm of ureteric orifice of bladder (C67.6)
    Malignant neoplasm of ureter
Approximate Synonyms
  • Cancer, right ureter
  • Primary malignant neoplasm of bilateral ureters
  • Primary malignant neoplasm of right ureter
  • Transitional cell carcinoma of bilateral ureters
  • Transitional cell carcinoma of right ureter
  • Transitional cell carcinoma, bilateral ureters
  • Transitional cell carcinoma, r ureter
  • Ureteral cancer, bilateral ureters
ICD-10-CM C66.1 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 656 Kidney and ureter procedures for neoplasm with mcc
  • 657 Kidney and ureter procedures for neoplasm with cc
  • 658 Kidney and ureter procedures for neoplasm without cc/mcc
  • 686 Kidney and urinary tract neoplasms with mcc
  • 687 Kidney and urinary tract neoplasms with cc
  • 688 Kidney and urinary tract neoplasms without cc/mcc

Convert C66.1 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
ICD-10-CM Codes Adjacent To C66.1
C63.9 Malignant neoplasm of male genital organ, unspecified
C64 Malignant neoplasm of kidney, except renal pelvis
C64.1 Malignant neoplasm of right kidney, except renal pelvis
C64.2 Malignant neoplasm of left kidney, except renal pelvis
C64.9 Malignant neoplasm of unspecified kidney, except renal pelvis
C65 Malignant neoplasm of renal pelvis
C65.1 Malignant neoplasm of right renal pelvis
C65.2 Malignant neoplasm of left renal pelvis
C65.9 Malignant neoplasm of unspecified renal pelvis
C66 Malignant neoplasm of ureter
C66.1 Malignant neoplasm of right ureter
C66.2 Malignant neoplasm of left ureter
C66.9 Malignant neoplasm of unspecified ureter
C67 Malignant neoplasm of bladder
C67.0 Malignant neoplasm of trigone of bladder
C67.1 Malignant neoplasm of dome of bladder
C67.2 Malignant neoplasm of lateral wall of bladder
C67.3 Malignant neoplasm of anterior wall of bladder
C67.4 Malignant neoplasm of posterior wall of bladder
C67.5 Malignant neoplasm of bladder neck
C67.6 Malignant neoplasm of ureteric orifice

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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