A24.1 ICD-10-CM Code: Acute and fulminating melioidosis
HCC Buddy Code Card
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FY 2026 Apr update / Certain infectious and parasitic diseases (A00-B99) / Certain zoonotic bacterial diseases (A20-A28)
A24.1
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceAcute and fulminating melioidosis
A severe and rapidly progressing bacterial infection caused by Burkholderia pseudomallei, characterized by sudden onset of serious symptoms that can affect multiple body systems. This is a life-threatening form of melioidosis that requires immediate medical attention.
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
Code Trumping
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Code Book Path
Inclusion Terms
Official- Melioidosis pneumonia
- Melioidosis sepsis
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for A24.1 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for A24.1 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for A24.1 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for A24.1 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for A24.1 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for A24.1 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 A24.1 an HCC code?
No. A24.1 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
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
A24.1 is the ICD-10-CM diagnosis code for acute and fulminating melioidosis. A severe and rapidly progressing bacterial infection caused by Burkholderia pseudomallei, characterized by sudden onset of serious symptoms that can affect multiple body systems. This is a life-threatening form of melioidosis that requires immediate medical attention. A24.1 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).
A24.1 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.
Verify the documentation specifies 'acute and fulminating' melioidosis rather than chronic or localized forms, as this distinction is critical for accurate code selection.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for A24.1 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Verify the documentation specifies 'acute and fulminating' melioidosis rather than chronic or localized forms, as this distinction is critical for accurate code selection
- •Ensure the causative organism (Burkholderia pseudomallei) is documented; if only 'melioidosis' is mentioned without the acute/fulminating specification, query the provider for clarification