N80.341 ICD-10-CM Code: Deep endometriosis of the right pelvic sidewall
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FY 2026 Apr update / Diseases of the genitourinary system (N00-N99) / Noninflammatory disorders of female genital tract (N80-N98)
N80.341
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceDeep endometriosis of the right pelvic sidewall
Endometrial tissue has grown deeply into the right side of the pelvic wall, often causing significant pain and potential nerve involvement.
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 N80.341 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for N80.341 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for N80.341 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for N80.341 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for N80.341 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for N80.341 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for N80.341 in this effective period.
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 N80.341 an HCC code?
No. N80.341 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- N80.341
- Description
- Deep endometriosis of the right pelvic sidewall
- 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
N80.341 is the ICD-10-CM diagnosis code for deep endometriosis of the right pelvic sidewall. Endometrial tissue has grown deeply into the right side of the pelvic wall, often causing significant pain and potential nerve involvement. N80.341 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).
N80.341 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 indicates deep infiltration on the right side; ensure documentation specifies depth and laterality.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for N80.341 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This code indicates deep infiltration on the right side; ensure documentation specifies depth and laterality
- •Deep pelvic sidewall endometriosis may involve ureter or nerve structures; review for additional complications