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ICD-10-CM · FY 2026 APRIL UPDATE

Y37.4

Military operations involving firearm discharge and other forms of conventional warfare

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
Y37.41Military operations involving rubber bulletsCategory
Y37.410Military operations involving rubber bullets, military personnelCategory
Y37.410AMilitary operations involving rubber bullets, military personnel, initial encounterBillable
Y37.410DMilitary operations involving rubber bullets, military personnel, subsequent encounterBillable
Y37.410SMilitary operations involving rubber bullets, military personnel, sequelaBillable
Y37.411Military operations involving rubber bullets, civilianCategory
Y37.411AMilitary operations involving rubber bullets, civilian, initial encounterBillable
Y37.411DMilitary operations involving rubber bullets, civilian, subsequent encounterBillable
Y37.411SMilitary operations involving rubber bullets, civilian, sequelaBillable
Y37.42Military operations involving firearms pelletsCategory
Y37.420Military operations involving firearms pellets, military personnelCategory
Y37.420AMilitary operations involving firearms pellets, military personnel, initial encounterBillable
Y37.420DMilitary operations involving firearms pellets, military personnel, subsequent encounterBillable
Y37.420SMilitary operations involving firearms pellets, military personnel, sequelaBillable
Y37.421Military operations involving firearms pellets, civilianCategory
Y37.421AMilitary operations involving firearms pellets, civilian, initial encounterBillable
Y37.421DMilitary operations involving firearms pellets, civilian, subsequent encounterBillable
Y37.421SMilitary operations involving firearms pellets, civilian, sequelaBillable
Y37.43Military operations involving other firearms dischargeCategory
Y37.430Military operations involving other firearms discharge, military personnelCategory
Y37.430AMilitary operations involving other firearms discharge, military personnel, initial encounterBillable
Y37.430DMilitary operations involving other firearms discharge, military personnel, subsequent encounterBillable
Y37.430SMilitary operations involving other firearms discharge, military personnel, sequelaBillable
Y37.431Military operations involving other firearms discharge, civilianCategory
Y37.431AMilitary operations involving other firearms discharge, civilian, initial encounterBillable
Y37.431DMilitary operations involving other firearms discharge, civilian, subsequent encounterBillable
Y37.431SMilitary operations involving other firearms discharge, civilian, sequelaBillable
Y37.44Military operations involving unarmed hand to hand combatCategory
Y37.440Military operations involving unarmed hand to hand combat, military personnelCategory
Y37.440AMilitary operations involving unarmed hand to hand combat, military personnel, initial encounterBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.