N76.82 ICD-10-CM Code: Fournier disease of vagina and vulva
HCC Buddy Code Card
Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.
FY 2026 Apr update / Diseases of the genitourinary system (N00-N99) / Inflammatory diseases of female pelvic organs (N70-N77)
N76.82
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceFournier disease of vagina and vulva
A serious, rapidly spreading bacterial infection of the vulva and surrounding tissues that requires urgent medical attention and often surgical intervention.
Buddy Insight
Fournier disease affecting female genitalia represents a life-threatening necrotizing fasciitis requiring emergency surgical intervention and intensive care management.
CMS-HCC V28
MappedHCC 92
RAF 0.479
CMS-HCC V24
MappedHCC 39
RAF 0.401
ACA/HHS
MappedHCC 54
Varies by metal level
ESRD/PACE
MappedHCC 39
RAF 0.092
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
Official- Fournier gangrene of vagina and vulva
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for N76.82 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for N76.82 in this effective period.
Excludes 1
Official- gangrene in diabetes mellitus (E08-E13 with .52)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for N76.82 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for N76.82 in this effective period.
Code Also
Official- , if applicable, diabetes mellitus (E08-E13 with .9)
Buddy Documentation Tip
MEAT Support
Audit Caution
Common Mistakes
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 N76.82 an HCC code?
Yes. N76.82 (Fournier disease of vagina and vulva) maps to Bone/Joint/Muscle/Severe Soft Tissue Infections/Necrosis under the CMS-HCC V28 risk adjustment model (and Bone/Joint/Muscle Infections/Necrosis under V24), with a community non-dual aged RAF of 0.479. It is billable for payment year 2026.
Coder answer: N76.82 is billable and maps to V28 HCC 92, Bone/Joint/Muscle/Severe Soft Tissue Infections/Necrosis. Open it in the Code Book for the tabular path, RAF, and MEAT checklist.
- Code
- N76.82
- Description
- Fournier disease of vagina and vulva
- HCC (V28)
- HCC 92 — Bone/Joint/Muscle/Severe Soft Tissue Infections/Necrosis
- RAF
- 0.479
- Billable
- Yes
- Payment year
- 2026
HCC Category Mapping
Each model's RAF is its CMS base weight for that model's standard population, so weights are not directly comparable across models: CMS-HCC V28 and V24 use Community, Non-Dual, Aged; ESRD uses the dialysis continuing-enrollee model; RxHCC is the Part D continuing-enrollee, non-low-income, aged weight (a larger scale than CMS-HCC). ACA/HHS has no single weight — it varies by metal level. Actual per-patient RAF contribution depends on member segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.
Work N76.82 in the Code Book — tabular path, V28 RAF, and MEAT checklist →
MEAT Criteria for N76.82
For N76.82 to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically, it has to be re-documented and supported each calendar year.
- MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
- EEvaluate: test results, medication response, or physical findings reviewed by the provider
- AAssess: explicit mention in the assessment or plan with acknowledgment of status
- TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis
Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed N76.82 during that encounter, not just copy-forwarded from a problem list.
Coder workflow notes
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What This Code Means
N76.82 is the ICD-10-CM diagnosis code for fournier disease of vagina and vulva. A serious, rapidly spreading bacterial infection of the vulva and surrounding tissues that requires urgent medical attention and often surgical intervention. N76.82 sits in the ICD-10-CM chapter for diseases of the genitourinary system (n00-n99), within the section covering inflammatory diseases of female pelvic organs (n70-n77).
Under the CMS-HCC V28 risk adjustment model, N76.82 maps to Bone/Joint/Muscle/Severe Soft Tissue Infections/Necrosis (HCC 92) with a community, non-dual, aged base RAF weight of 0.479. Under the older CMS-HCC V24 model, N76.82 maps to Bone/Joint/Muscle Infections/Necrosis (HCC 39) with a community, non-dual, aged base RAF weight of 0.401. V28 is the CMS-HCC risk adjustment model that reached 100% phase-in for payment year 2026, replacing V24 which was used during the PY2024–PY2025 transition.
This is a medical emergency; ensure documentation reflects the acute and severe nature. Because N76.82 maps to a payment HCC, the provider's documentation must satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) for the encounter to count toward the patient's Medicare Advantage risk adjustment score. When documentation is ambiguous, coders should issue a provider query rather than assume the highest-specificity variant.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for N76.82 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This is a medical emergency; ensure documentation reflects the acute and severe nature
- •Code any associated sepsis, necrotizing fasciitis, or systemic complications separately
Clinical Significance
Fournier disease affecting female genitalia represents a life-threatening necrotizing fasciitis requiring emergency surgical intervention and intensive care management. The high mortality and morbidity associated with this condition makes it critical for accurate risk assessment and resource allocation.
Documentation Requirements
- ✓Clinical diagnosis of necrotizing fasciitis of vulva/vagina
- ✓Documentation of tissue necrosis and gangrene in female genitalia
- ✓Evidence of rapid progression and systemic involvement
- ✓Surgical debridement records and extent of tissue removal
- ✓Antibiotic therapy and response to treatment
- ✓Assessment of sepsis or systemic complications
- ✓Imaging studies showing extent of infection
- ✓Multidisciplinary care coordination documentation
Commonly Confused Codes
- •N49.3: Fournier gangrene (male genital involvement)
- •N76.4: Abscess of vulva (localized abscess without necrosis)
- •L03.316: Cellulitis of female external genital organs (superficial infection)
- •N76.0: Acute vaginitis (inflammatory condition without necrosis)
- •L08.9: Local skin and soft tissue infection, unspecified (non-necrotizing)