2026 ICD-10-CM Diagnosis Code Y37Military operations

ICD-10-CM CodesV01–Y99Y35-Y38Y37

ICD-10-CM Y37
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Y37 is a non-billable ICD-10-CM category code for military operations, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Y37.000A, Y37.000D, Y37.000S, and Y37.001A.

Code Identity

ICD-10-CM Code
Y37
Billable Status
No — Non-Billable Category
Code Describes
Military operations
Chapter
Y35-Y38
Legal intervention, operations of war, military operations, and terrorism

Code Classification

ChapterV01–Y99External causes of morbidity and mortality
SectionY35-Y38Legal intervention, operations of war, military operations, and terrorism
CategoryY37Military operations
This CodeY37Military operations

Specific Coding for Military operationsOverview

Non-specific codes like Y37 require more characters. Use one of these billable codes instead:

  • Y37.0 for Military operations involving explosion of marine weapons

  • Y37.00 for Military operations involving explosion of unspecified marine weapon

  • Y37.01 for Military operations involving explosion of depth-charge

  • Y37.02 for Military operations involving explosion of marine mine

  • Y37.03 for Military operations involving explosion of sea-based artillery shell

  • Y37.04 for Military operations involving explosion of torpedo

  • Y37.05 for Military operations involving accidental detonation of onboard marine weapons

  • Y37.09 for Military operations involving explosion of other marine weapons

  • Y37.1 for Military operations involving destruction of aircraft

  • Y37.10 for Military operations involving unspecified destruction of aircraft

  • Y37.11 for Military operations involving destruction of aircraft due to enemy fire or explosives

  • Y37.12 for Military operations involving destruction of aircraft due to collision with other aircraft

  • Y37.13 for Military operations involving destruction of aircraft due to onboard fire

  • Y37.14 for Military operations involving destruction of aircraft due to accidental detonation of onboard munitions and explosives

  • Y37.19 for Military operations involving other destruction of aircraft

  • Y37.2 for Military operations involving other explosions and fragments

  • Y37.20 for Military operations involving unspecified explosion and fragments

  • Y37.21 for Military operations involving explosion of aerial bomb

  • Y37.22 for Military operations involving explosion of guided missile

  • Y37.23 for Military operations involving explosion of improvised explosive device [IED]

  • Y37.24 for Military operations involving explosion due to accidental detonation and discharge of own munitions or munitions launch device

  • Y37.25 for Military operations involving fragments from munitions

  • Y37.26 for Military operations involving fragments of improvised explosive device [IED]

  • Y37.27 for Military operations involving fragments from weapons

  • Y37.29 for Military operations involving other explosions and fragments

  • Y37.3 for Military operations involving fires, conflagrations and hot substances

  • Y37.30 for Military operations involving unspecified fire, conflagration and hot substance

  • Y37.31 for Military operations involving gasoline bomb

  • Y37.32 for Military operations involving incendiary bullet

  • Y37.33 for Military operations involving flamethrower

  • Y37.39 for Military operations involving other fires, conflagrations and hot substances

  • Y37.4 for Military operations involving firearm discharge and other forms of conventional warfare

  • Y37.41 for Military operations involving rubber bullets

  • Y37.42 for Military operations involving firearms pellets

  • Y37.43 for Military operations involving other firearms discharge

  • Y37.44 for Military operations involving unarmed hand to hand combat

  • Y37.45 for Military operations involving combat using blunt or piercing object

  • Y37.46 for Military operations involving intentional restriction of air and airway

  • Y37.47 for Military operations involving unintentional restriction of air and airway

  • Y37.49 for Military operations involving other forms of conventional warfare

  • Y37.5 for Military operations involving nuclear weapons

  • Y37.50 for Military operations involving unspecified effect of nuclear weapon

  • Y37.51 for Military operations involving direct blast effect of nuclear weapon

  • Y37.52 for Military operations involving indirect blast effect of nuclear weapon

  • Y37.53 for Military operations involving thermal radiation effect of nuclear weapon

  • Y37.54 for Military operation involving nuclear radiation effects of nuclear weapon

  • Y37.59 for Military operation involving other effects of nuclear weapons

  • Y37.6 for Military operations involving biological weapons

  • Y37.6X for Military operations involving biological weapons

  • Y37.7 for Military operations involving chemical weapons and other forms of unconventional warfare

  • Y37.7X for Military operations involving chemical weapons and other forms of unconventional warfare

  • Y37.9 for Other and unspecified military operations

  • Y37.90 for Military operations, unspecified

  • Y37.91 for Military operations involving unspecified weapon of mass destruction [WMD]

  • Y37.92 for Military operations involving friendly fire

  • Y37.A for Blast overpressure in military operations

  • Y37.A1 for Low level blast overpressure in military operations

  • Y37.A2 for High level blast overpressure in military operations

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Includes

  • injuries to military personnel and civilians occurring during peacetime on military property and during routine military exercises and operations

Type 1 Excludes

7th Character Note

  • The appropriate 7th character is to be added to each code from category Y37

7th Character

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Patient EducationClinical

Veterans and Military Health

Military service members and veterans have made sacrifices to our country, and they may face lots of different health issues. Some of the most common health problems they may have include chronic pain, sleep disorders, and mental health disorders.

The full article covers:

  • What types of injuries do service members face?
  • What other special health problems do service members face?
  • What mental health issues do service members and veterans face?
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Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Y37Overview

Is Y37 (Military operations) a billable code?

No. This is a category header that groups the codes for military operations, and headers cannot be submitted on claims. Claims for military operations need a more specific code from this category, such as Y37.000A, Y37.000D, and Y37.000S.