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T75.09XS ICD-10-CM Code: Other effects of lightning, sequela

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FY 2026 Apr update / Injury, poisoning and certain other consequences of external causes (S00-T88) / Other and unspecified effects of external causes (T66-T78)

T75.09XS

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Other effects of lightning, sequela

Other effects of lightning, sequela

CMS-HCC V28

0

0

RAF 0

CMS-HCC V24

0

0

RAF 0

ACA/HHS

0

0

RAF 0

ESRD/PACE

0

0

RAF 0

RXHCC

0

0

RAF 0

Code Trumping

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Code Book Path

Official
T7509XOther and unspecified effects of external causes (T66-T78)
T75.09XSOther effects of lightning, sequela

Inclusion Terms

Official

ICD-10-CM does not list inclusion terms for T75.09XS in this effective period.

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for T75.09XS in this effective period.

Related Child Codes

Official
T75.09XAOther effects of lightning, initial encounter
T75.09XDOther effects of lightning, subsequent encounter

Includes

Official

ICD-10-CM does not list Includes notes for T75.09XS in this effective period.

Excludes 1

Official

ICD-10-CM does not list Excludes 1 notes for T75.09XS in this effective period.

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for T75.09XS in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for T75.09XS in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for T75.09XS 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 T75.09XS an HCC code?

No. T75.09XS 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

T75.09XS is the ICD-10-CM diagnosis code for other effects of lightning, sequela. T75.09XS sits in the ICD-10-CM chapter for injury, poisoning and certain other consequences of external causes (s00-t88), within the section covering other and unspecified effects of external causes (t66-t78).

T75.09XS 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.

T75.09XS 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 T75.09XS 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 T75.09XS sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Child Codes

Code Hierarchy

T75.09XSOther effects of lightning, sequela
T75.09XSOther effects of lightning, sequela

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