D78.21 ICD-10-CM Code: Postprocedural hemorrhage of the spleen following a procedure on the spleen
HCC Buddy Code Card
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FY 2026 Apr update / Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89) / Intraoperative and postprocedural complications of the spleen (D78)
D78.21
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidancePostprocedural hemorrhage of the spleen following a procedure on the spleen
Bleeding from the spleen that develops after surgery performed on the spleen.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for D78.21 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for D78.21 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for D78.21 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for D78.21 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for D78.21 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for D78.21 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for D78.21 in this effective period.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
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.
- Code
- D78.21
- Description
- Postprocedural hemorrhage of the spleen following a procedure on the spleen
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
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
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