W56.41XD ICD-10-CM Code: Bitten by shark, subsequent encounter
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FY 2026 Apr update / External causes of morbidity (V00-Y99) / Exposure to animate mechanical forces (W50-W64)
W56.41XD
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceBitten by shark, subsequent encounter
Bitten by shark, subsequent encounter
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 W56.41XD in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for W56.41XD in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for W56.41XD in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for W56.41XD in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for W56.41XD in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for W56.41XD in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for W56.41XD in this effective period.
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 W56.41XD an HCC code?
No. W56.41XD 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
W56.41XD is the ICD-10-CM diagnosis code for bitten by shark, subsequent encounter. W56.41XD sits in the ICD-10-CM chapter for external causes of morbidity (v00-y99), within the section covering exposure to animate mechanical forces (w50-w64).
W56.41XD 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.
W56.41XD is a billable ICD-10-CM code that can be reported on claims but does not currently contribute to a Medicare Advantage member's RAF score under any CMS risk adjustment model (V28, V24, ESRD, or RxHCC). Coders reviewing W56.41XD should check whether additional documentation would support a more specific child code in the same hierarchy that does map to a payment HCC, capturing the correct specificity is the highest-impact RAF improvement available within accurate coding.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for W56.41XD sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.