Skip to content

Y37.90XD ICD-10-CM Code: Military operations, unspecified, subsequent encounter

ICD-10-CM Code View

HCC Buddy Code Card

Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.

FY 2026 Apr update / External causes of morbidity (V00-Y99) / Legal intervention, operations of war, military operations, and terrorism (Y35-Y38)

Y37.90XD

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

Military operations, unspecified, subsequent encounter

Military operations, unspecified, subsequent encounter

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

Basket needed

Code Book Path

Official
Y3790XLegal intervention, operations of war, military operations, and terrorism (Y35-Y38)
Y37.90XDMilitary operations, unspecified, subsequent encounter

Inclusion Terms

Official

ICD-10-CM does not list inclusion terms for Y37.90XD in this effective period.

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for Y37.90XD in this effective period.

Related Child Codes

Official
Y37.90XAMilitary operations, unspecified, initial encounter
Y37.90XSMilitary operations, unspecified, sequela

Includes

Official

ICD-10-CM does not list Includes notes for Y37.90XD in this effective period.

Excludes 1

Official

ICD-10-CM does not list Excludes 1 notes for Y37.90XD in this effective period.

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for Y37.90XD in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for Y37.90XD in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for Y37.90XD 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 Y37.90XD an HCC code?

No. Y37.90XD 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

Y37.90XD is the ICD-10-CM diagnosis code for military operations, unspecified, subsequent encounter. Y37.90XD sits in the ICD-10-CM chapter for external causes of morbidity (v00-y99), within the section covering legal intervention, operations of war, military operations, and terrorism (y35-y38).

Y37.90XD 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.

Y37.90XD 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 Y37.90XD 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 Y37.90XD sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Child Codes

Code Hierarchy

Y37.90XDMilitary operations, unspecified, subsequent encounter
Y37.90XDMilitary operations, unspecified, subsequent encounter

Open Y37.90XD in the Interactive Encoder

See full code details, coding tips, HCC mappings, and related codes in our interactive encoder. Start your 14-day Pro trial. No credit card required.