A28.0 ICD-10-CM Code: Pasteurellosis
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FY 2026 Apr update / Certain infectious and parasitic diseases (A00-B99) / Certain zoonotic bacterial diseases (A20-A28)
A28.0
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidancePasteurellosis
Pasteurellosis is an infection caused by Pasteurella bacteria, typically transmitted through bites or scratches from infected animals like cats, dogs, or rabbits. This infection can affect the skin, soft tissues, or in severe cases, spread to the bloodstream or other organs.
CMS-HCC V28
00
RAF 0
CMS-HCC V24
00
RAF 0
ACA/HHS
00
RAF 0
ESRD/PACE
00
RAF 0
RXHCC
00
RAF 0
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Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for A28.0 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for A28.0 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for A28.0 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for A28.0 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for A28.0 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for A28.0 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for A28.0 in this effective period.
Buddy Documentation Tip
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is A28.0 an HCC code?
No. A28.0 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A28.0 is the ICD-10-CM diagnosis code for pasteurellosis. Pasteurellosis is an infection caused by Pasteurella bacteria, typically transmitted through bites or scratches from infected animals like cats, dogs, or rabbits. This infection can affect the skin, soft tissues, or in severe cases, spread to the bloodstream or other organs. A28.0 sits in the ICD-10-CM chapter for certain infectious and parasitic diseases (a00-b99), within the section covering certain zoonotic bacterial diseases (a20-a28).
A28.0 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.
Always document the source of infection (animal bite, scratch, or wound exposure) as this helps establish the diagnosis and may affect treatment decisions.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for A28.0 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Always document the source of infection (animal bite, scratch, or wound exposure) as this helps establish the diagnosis and may affect treatment decisions
- •Verify whether the infection is localized to skin/soft tissue or if it has progressed to systemic infection, as this may require additional codes for complications or sepsis