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ICD-10-CM Codes
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C00-D49
Neoplasms
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C64-C68
Malignant neoplasms of urinary tract
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C66-
Malignant neoplasm of ureter
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2021 ICD-10-CM Diagnosis Code C66
2021 ICD-10-CM Diagnosis Code C66
Malignant neoplasm of ureter
2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
- C66 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2021 edition of ICD-10-CM C66 became effective on October 1, 2020.
- This is the American ICD-10-CM version of C66 - other international versions of ICD-10 C66 may differ.
Type 1 ExcludesType 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as C66. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
The following code(s) above
C66 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:
Clinical Information
- A primary or metastatic malignant tumor involving the ureter. The majority are carcinomas.
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
ICD-10-CM Codes Adjacent To C66
C63.8 Malignant neoplasm of overlapping sites of male genital organs
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
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.