D78.21
BillablePostprocedural hemorrhage of the spleen following a procedure on the spleen
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is D78.21 an HCC code?
No. D78.21 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
D78.21 is the ICD-10-CM diagnosis code for postprocedural hemorrhage of the spleen following a procedure on the spleen. Bleeding from the spleen that develops after surgery performed on the spleen. D78.21 sits in the ICD-10-CM chapter for diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (d50-d89), within the section covering intraoperative and postprocedural complications of the spleen (d78).
D78.21 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.
This occurs after the procedure is complete, distinguishing it from intraoperative codes.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for D78.21 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This occurs after the procedure is complete, distinguishing it from intraoperative codes
- •Document the time interval between surgery and hemorrhage onset