W57.XXXD ICD-10-CM Code: Bitten or stung by nonvenomous insect and other nonvenomous arthropods, subsequent encounter

W57.XXXD is the ICD-10-CM diagnosis code for bitten or stung by nonvenomous insect and other nonvenomous arthropods, subsequent encounter. W57.XXXD 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).

W57.XXXD 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.

W57.XXXD 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 W57.XXXD 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.