Y37 Military operations

⚠ Non-Billable ICD-10-CM 2026
Create your free account → Open Y37 in the app →

Get what a quick lookup can't: the AI assistant for official-guideline questions, HCC risk-adjustment mappings (CMS-HCC V24/V28, RxHCC), FDA drug indications, and AHA Coding Clinic references for Y37.

The ICD-10-CM code for Military operations is Y37 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
Y35-Y38: Legal intervention, operations of war, military operations, and terrorism (Y35-Y38)
Category Y37
145 codes (91 billable)
FY2026 Status
Stable since FY2024
Includes
  • injuries to military personnel and civilians occurring during peacetime on military property and during routine military exercises and operations
Excludes1
Not coded here. These conditions should NOT be coded together with Y37.
  • military aircraft involved in aircraft accident with civilian aircraft (V97.81-)
  • military vehicles involved in transport accident with civilian vehicle (V09.01, V09.21, V19.81, V29.818, V39.81, V49.81, V59.81, V69.81, V79.81)
  • military watercraft involved in water transport accident with civilian watercraft (V94.81-)
  • war operations (Y36.-)

Official Coding Guidelines

Used with any code in range A00.0-T88.9, Z00-Z99

1) Used with any code in the range of A00.0-T88.9, Z00-Z99 An external cause code may be used with any code in the range of A00.0-T88.9, Z00-Z99, classification that represents a health condition due to an external cause. Though they are most applicable to injuries, they are also valid for use with such things as infections or diseases due to an external source, and other health conditions, such as a heart attack that occurs during strenuous physical activity.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.20.a.1
External cause code used for length of treatment

2) External cause code used for length of treatment Assign the external cause code, with the appropriate 7th character (initial encounter, subsequent encounter or sequela) for each encounter for which the injury or condition is being treated. Most categories in chapter 20 have a 7th character requirement for each applicable code. Most categories in this chapter have three 7th character values: A, initial encounter, D, subsequent encounter and S, sequela. While the patient may be seen by a new or different provider over the course of treatment for an injury or condition, assignment of the 7th character for external cause should match the 7th character of the code assigned for the associated injury or condition for the encounter.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.20.a.2

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference Y37 with the canonical source and edition:

Y37 — Military operations. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/Y37

Canonical URL: https://icd10codingpro.com/codes/Y37

Related Codes

All Codes in Y37

Every most-specific code under Y37 Military operations (91 codes):

Show the complete Y37 code list
Y37.000 Military operations involving explosion of unspecified marine weapon, military personnel Y37.001 Military operations involving explosion of unspecified marine weapon, civilian Y37.010 Military operations involving explosion of depth-charge, military personnel Y37.011 Military operations involving explosion of depth-charge, civilian Y37.020 Military operations involving explosion of marine mine, military personnel Y37.021 Military operations involving explosion of marine mine, civilian Y37.030 Military operations involving explosion of sea-based artillery shell, military personnel Y37.031 Military operations involving explosion of sea-based artillery shell, civilian Y37.040 Military operations involving explosion of torpedo, military personnel Y37.041 Military operations involving explosion of torpedo, civilian Y37.050 Military operations involving accidental detonation of onboard marine weapons, military personnel Y37.051 Military operations involving accidental detonation of onboard marine weapons, civilian Y37.090 Military operations involving explosion of other marine weapons, military personnel Y37.091 Military operations involving explosion of other marine weapons, civilian Y37.100 Military operations involving unspecified destruction of aircraft, military personnel Y37.101 Military operations involving unspecified destruction of aircraft, civilian Y37.110 Military operations involving destruction of aircraft due to enemy fire or explosives, military personnel Y37.111 Military operations involving destruction of aircraft due to enemy fire or explosives, civilian Y37.120 Military operations involving destruction of aircraft due to collision with other aircraft, military personnel Y37.121 Military operations involving destruction of aircraft due to collision with other aircraft, civilian Y37.130 Military operations involving destruction of aircraft due to onboard fire, military personnel Y37.131 Military operations involving destruction of aircraft due to onboard fire, civilian Y37.140 Military operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, military personnel Y37.141 Military operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives, civilian Y37.190 Military operations involving other destruction of aircraft, military personnel Y37.191 Military operations involving other destruction of aircraft, civilian Y37.200 Military operations involving unspecified explosion and fragments, military personnel Y37.201 Military operations involving unspecified explosion and fragments, civilian Y37.210 Military operations involving explosion of aerial bomb, military personnel Y37.211 Military operations involving explosion of aerial bomb, civilian Y37.220 Military operations involving explosion of guided missile, military personnel Y37.221 Military operations involving explosion of guided missile, civilian Y37.230 Military operations involving explosion of improvised explosive device [IED], military personnel Y37.231 Military operations involving explosion of improvised explosive device [IED], civilian Y37.240 Military operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, military personnel Y37.241 Military operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device, civilian Y37.250 Military operations involving fragments from munitions, military personnel Y37.251 Military operations involving fragments from munitions, civilian Y37.260 Military operations involving fragments of improvised explosive device [IED], military personnel Y37.261 Military operations involving fragments of improvised explosive device [IED], civilian Y37.270 Military operations involving fragments from weapons, military personnel Y37.271 Military operations involving fragments from weapons, civilian Y37.290 Military operations involving other explosions and fragments, military personnel Y37.291 Military operations involving other explosions and fragments, civilian Y37.300 Military operations involving unspecified fire, conflagration and hot substance, military personnel Y37.301 Military operations involving unspecified fire, conflagration and hot substance, civilian Y37.310 Military operations involving gasoline bomb, military personnel Y37.311 Military operations involving gasoline bomb, civilian Y37.320 Military operations involving incendiary bullet, military personnel Y37.321 Military operations involving incendiary bullet, civilian Y37.330 Military operations involving flamethrower, military personnel Y37.331 Military operations involving flamethrower, civilian Y37.390 Military operations involving other fires, conflagrations and hot substances, military personnel Y37.391 Military operations involving other fires, conflagrations and hot substances, civilian Y37.410 Military operations involving rubber bullets, military personnel Y37.411 Military operations involving rubber bullets, civilian Y37.420 Military operations involving firearms pellets, military personnel Y37.421 Military operations involving firearms pellets, civilian Y37.430 Military operations involving other firearms discharge, military personnel Y37.431 Military operations involving other firearms discharge, civilian Y37.440 Military operations involving unarmed hand to hand combat, military personnel Y37.441 Military operations involving unarmed hand to hand combat, civilian Y37.450 Military operations involving combat using blunt or piercing object, military personnel Y37.451 Military operations involving combat using blunt or piercing object, civilian Y37.460 Military operations involving intentional restriction of air and airway, military personnel Y37.461 Military operations involving intentional restriction of air and airway, civilian Y37.470 Military operations involving unintentional restriction of air and airway, military personnel Y37.471 Military operations involving unintentional restriction of air and airway, civilian Y37.490 Military operations involving other forms of conventional warfare, military personnel Y37.491 Military operations involving other forms of conventional warfare, civilian Y37.500 Military operations involving unspecified effect of nuclear weapon, military personnel Y37.501 Military operations involving unspecified effect of nuclear weapon, civilian Y37.510 Military operations involving direct blast effect of nuclear weapon, military personnel Y37.511 Military operations involving direct blast effect of nuclear weapon, civilian Y37.520 Military operations involving indirect blast effect of nuclear weapon, military personnel Y37.521 Military operations involving indirect blast effect of nuclear weapon, civilian Y37.530 Military operations involving thermal radiation effect of nuclear weapon, military personnel Y37.531 Military operations involving thermal radiation effect of nuclear weapon, civilian Y37.540 Military operation involving nuclear radiation effects of nuclear weapon, military personnel Y37.541 Military operation involving nuclear radiation effects of nuclear weapon, civilian Y37.590 Military operation involving other effects of nuclear weapons, military personnel Y37.591 Military operation involving other effects of nuclear weapons, civilian Y37.6X0 Military operations involving biological weapons, military personnel Y37.6X1 Military operations involving biological weapons, civilian Y37.7X0 Military operations involving chemical weapons and other forms of unconventional warfare, military personnel Y37.7X1 Military operations involving chemical weapons and other forms of unconventional warfare, civilian Y37.90 Military operations, unspecified Y37.91 Military operations involving unspecified weapon of mass destruction [WMD] Y37.92 Military operations involving friendly fire Y37.A1 Low level blast overpressure in military operations Y37.A2 High level blast overpressure in military operations
Search all 70,000+ ICD-10-CM codes →
Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

Get HCC Mappings, Clinical Summaries, and More

Access premium features including HCC risk adjustment, FDA drug indications, AI coding assistant, and comprehensive clinical context.

Start Free Trial