A02.20 ICD-10-CM Code: Localized salmonella infection, unspecified
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FY 2026 Apr update / Certain infectious and parasitic diseases (A00-B99) / Intestinal infectious diseases (A00-A09)
A02.20
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceLocalized salmonella infection, unspecified
A bacterial infection caused by Salmonella bacteria that is limited to a specific area of the body, but the exact location has not been specified in the medical record. This is a foodborne illness that typically affects the digestive system or other localized areas.
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
OfficialICD-10-CM does not list inclusion terms for A02.20 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for A02.20 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for A02.20 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for A02.20 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for A02.20 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for A02.20 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for A02.20 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 A02.20 an HCC code?
No. A02.20 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
A02.20 is the ICD-10-CM diagnosis code for localized salmonella infection, unspecified. A bacterial infection caused by Salmonella bacteria that is limited to a specific area of the body, but the exact location has not been specified in the medical record. This is a foodborne illness that typically affects the digestive system or other localized areas. A02.20 sits in the ICD-10-CM chapter for certain infectious and parasitic diseases (a00-b99), within the section covering intestinal infectious diseases (a00-a09).
A02.20 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.
Use this code only when the documentation indicates a localized Salmonella infection but does not specify the anatomical site; if the site is documented (such as bone, joint, or meninges), use the more specific A02.2x subcategory codes instead.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for A02.20 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 the documentation indicates a localized Salmonella infection but does not specify the anatomical site; if the site is documented (such as bone, joint, or meninges), use the more specific A02.2x subcategory codes instead
- •Verify that the infection is localized rather than systemic or septicemia; if bacteremia or sepsis is present, consider code A02.1 for Salmonella sepsis