N80.343 ICD-10-CM Code: Deep endometriosis of the bilateral pelvic sidewall
N80.343 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC coding software
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FY 2026 Apr update / Diseases of the genitourinary system (N00-N99) / Noninflammatory disorders of female genital tract (N80-N98)
N80.343
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceDeep endometriosis of the bilateral pelvic sidewall
This code represents deep endometriosis affecting both sides of the pelvic sidewall, indicating a more extensive bilateral involvement of the condition.
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 N80.343 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for N80.343 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for N80.343 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for N80.343 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for N80.343 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for N80.343 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for N80.343 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 N80.343 an HCC code?
No. N80.343 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- N80.343
- Description
- Deep endometriosis of the bilateral pelvic sidewall
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- 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
N80.343 is the ICD-10-CM diagnosis code for deep endometriosis of the bilateral pelvic sidewall. This code represents deep endometriosis affecting both sides of the pelvic sidewall, indicating a more extensive bilateral involvement of the condition. N80.343 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).
N80.343 is a billable ICD-10-CM code, but the current payload does not show a mapping under the CMS-HCC V28, V24, ESRD, or RxHCC models. Do not assign risk adjustment value from this page when no source-backed mapping is shown; verify the applicable model and payment year.
Use this code only when documentation explicitly states bilateral deep endometriosis of the pelvic sidewall.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for N80.343 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use this code only when documentation explicitly states bilateral deep endometriosis of the pelvic sidewall
- •Bilateral codes should not be used if only one side is documented or if depth is unspecified