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A95.0 ICD-10-CM Code: Sylvatic yellow fever

ICD-10-CM Code View

HCC Buddy Code Card

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FY 2026 Apr update / Certain infectious and parasitic diseases (A00-B99) / Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99)

A95.0

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Sylvatic yellow fever

Sylvatic yellow fever is a form of yellow fever that occurs in tropical rainforests and is transmitted to humans through mosquito bites, typically affecting people who work or travel in forested areas. This is the natural cycle of yellow fever that exists in wildlife populations.

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

Official
A95Yellow fever
A95.0Sylvatic yellow fever

Inclusion Terms

Official
  • Jungle yellow fever

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for A95.0 in this effective period.

Related Child Codes

Official
A95.1Urban yellow fever
A95.9Yellow fever, unspecified

Includes

Official

ICD-10-CM does not list Includes notes for A95.0 in this effective period.

Excludes 1

Official

ICD-10-CM does not list Excludes 1 notes for A95.0 in this effective period.

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for A95.0 in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for A95.0 in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for A95.0 in this effective period.

Buddy Documentation Tip

HCC Buddy guidance
Sylvatic yellow fever (A95.0) is distinct from urban yellow fever (A95.1) and unspecified yellow fever (A95.9) - verify the transmission setting and source to ensure correct code selection
Document the geographic location and exposure history (forest/jungle exposure) in the medical record to support this diagnosis, as it helps differentiate from urban transmission patterns

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 A95.0 an HCC code?

No. A95.0 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.

Code
A95.0
Description
Sylvatic yellow fever
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

A95.0 is the ICD-10-CM diagnosis code for sylvatic yellow fever. Sylvatic yellow fever is a form of yellow fever that occurs in tropical rainforests and is transmitted to humans through mosquito bites, typically affecting people who work or travel in forested areas. This is the natural cycle of yellow fever that exists in wildlife populations. A95.0 sits in the ICD-10-CM chapter for certain infectious and parasitic diseases (a00-b99), within the section covering arthropod-borne viral fevers and viral hemorrhagic fevers (a90-a99).

A95.0 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.

Sylvatic yellow fever (A95.0) is distinct from urban yellow fever (A95.1) and unspecified yellow fever (A95.9) - verify the transmission setting and source to ensure correct code selection.

HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for A95.0 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

  • Sylvatic yellow fever (A95.0) is distinct from urban yellow fever (A95.1) and unspecified yellow fever (A95.9) - verify the transmission setting and source to ensure correct code selection
  • Document the geographic location and exposure history (forest/jungle exposure) in the medical record to support this diagnosis, as it helps differentiate from urban transmission patterns

Child Codes

Code Hierarchy

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