B76.9
BillableHookworm disease, unspecified
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is B76.9 an HCC code?
No. B76.9 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
B76.9 is the ICD-10-CM diagnosis code for hookworm disease, unspecified. Hookworm disease is a parasitic infection caused by hookworms that attach to the small intestine and feed on blood, potentially causing anemia and malnutrition. This code is used when the specific type of hookworm cannot be determined or is not documented. B76.9 sits in the ICD-10-CM chapter for certain infectious and parasitic diseases (a00-b99), within the section covering helminthiases (b65-b83).
B76.9 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.
If the specific hookworm species is identified (such as Necator americanus or Ancylostoma duodenale), use the more specific codes B76.0 or B76.1 instead of B76.9.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for B76.9 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •If the specific hookworm species is identified (such as Necator americanus or Ancylostoma duodenale), use the more specific codes B76.0 or B76.1 instead of B76.9
- •Document any associated complications like anemia (D50.9) or malnutrition (E40-E46) separately, as these are common sequelae of hookworm infection