O98.619
BillableProtozoal diseases complicating pregnancy, unspecified trimester
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is O98.619 an HCC code?
No. O98.619 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
O98.619 is the ICD-10-CM diagnosis code for protozoal diseases complicating pregnancy, unspecified trimester. A parasitic infection caused by protozoa (single-celled organisms) that occurs during pregnancy at an unspecified time period. This condition can affect both the pregnant person and the developing fetus. O98.619 sits in the ICD-10-CM chapter for pregnancy, childbirth and the puerperium (o00-o9a), within the section covering other obstetric conditions, not elsewhere classified (o94-o9a).
O98.619 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 when the specific trimester is not documented; if trimester is known, use O98.611, O98.612, or O98.613 instead.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for O98.619 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.