Y37.040 Military operations involving explosion of torpedo, military personnel

ICD-10-CM Y37.040: Military operations involving explosion of torpedo, military personnel

ICD-10-CM code Y37.040 identifies an injury or poisoning event involving military personnel during military operations characterized by the explosion of a torpedo. The terminology record is active for the 2026 version and classifies the concept under a broader parent code for torpedo explosions during military operations. 1 4

Plain-language overview

Code Y37.040 applies to incidents involving military personnel during military operations where a torpedo explodes, and the concept is semantically classified as an injury or poisoning. 1

What this code represents

The parent concept for Y37.040 is Y37.04, which broadly encompasses military operations involving the explosion of a torpedo, while Y37.040 specifies that the affected individual is military personnel. 1 4

A distinct related code, Y37.041, differentiates civilian personnel involved in the same type of military operation torpedo explosion events from the military personnel designated by Y37.040. 4

Coding details

The 2026 terminology record for Y37.040 indicates an active status and lists no narrower child concepts within this specific classification hierarchy. 1

Documentation considerations

Coding instructions for blast overpressure in military operations list Y37.040 as an explosive type to code additionally when applicable, alongside grenades, onboard munitions, and improvised explosive devices. 6

Coverage and utilization context

Historical claims processing manuals reference injury due to war operations by explosion of marine weapons and torpedoes for duty military personnel, establishing a prior utilization context for this medical concept. 5

What the sources add

While S1 establishes the official active terminology and semantic type for Y37.040, S6 adds operational coding context by integrating the code into broader instructions for blast overpressure and explosive types. 1 6

Clinical context

Public health research notes that exposure to blast events in military populations does not always result in diagnosable traumatic brain injury, despite observed alterations in neurological function. 3

Sources

1. ICD-10-CM Y37.040 terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. SECTION I - INSTRUCTIONS FOR CLASSIFYING THE UNDERLYING CAUSE OF DEATH, 2026 — cdc.gov; accessed 2026-07-27.
3. September 2024 Topic packet — cdc.gov; accessed 2026-07-27.
4. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.
5. CMS Manual System - Pub 100-04 Medicare Claims ... — cms.gov; accessed 2026-07-27.
6. Coding: ICD-10-CM Section Y35-Y38 — imedicalcode.com; accessed 2026-07-27.