N80.A61 ICD-10-CM Code: Endometriosis of right ureter, unspecified depth
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FY 2026 Apr update / Diseases of the genitourinary system (N00-N99) / Noninflammatory disorders of female genital tract (N80-N98)
N80.A61
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceEndometriosis of right ureter, unspecified depth
Endometrial tissue (the lining of the uterus) is growing in the right ureter, which is the tube that carries urine from the kidney to the bladder. The depth of the tissue growth is not specified.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for N80.A61 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for N80.A61 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for N80.A61 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for N80.A61 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for N80.A61 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for N80.A61 in this effective period.
Code Also
Official- , if applicable, obstructive and reflux uropathy (N13.-)
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is N80.A61 an HCC code?
No. N80.A61 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- N80.A61
- Description
- Endometriosis of right ureter, unspecified depth
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
N80.A61 is the ICD-10-CM diagnosis code for endometriosis of right ureter, unspecified depth. Endometrial tissue (the lining of the uterus) is growing in the right ureter, which is the tube that carries urine from the kidney to the bladder. The depth of the tissue growth is not specified. N80.A61 sits in the ICD-10-CM chapter for diseases of the genitourinary system (n00-n99), within the section covering noninflammatory disorders of female genital tract (n80-n98).
N80.A61 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
This code is specific to the right ureter; verify laterality in documentation before coding.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for N80.A61 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This code is specific to the right ureter; verify laterality in documentation before coding
- •The 'unspecified depth' designation means the clinical documentation did not specify superficial versus deep involvement