Y37
Military operations
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 4 never code together
Y37code
Excludes1
- military aircraft involved in aircraft accident with civilian aircraft (V97.81-)V97.81-V97.81-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)V09.01V09.01V09.01V09.21V09.21V09.21V19.81V19.81V19.81V29.818V29.818V29.818V39.81V39.81V39.81V49.81V49.81V49.81V59.81V59.81V59.81V69.81V69.81V69.81V79.81V79.81V79.81
- military watercraft involved in water transport accident with civilian watercraft (V94.81-)V94.81-V94.81-V94.81-
- war operations (Y36.-)Y36.-Y36.-Y36.-
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 2
Y37code
Includes
- injuries to military personnel and civilians occurring during peacetime on military property and during routine military exercises and operations
V00-Y99chapter
Notes
- This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.S00-T88
Index entries leading here filed at null
No alphabetic index entry points at this code.
Subordinate codes 10
Y37.0 Military operations involving explosion of marine weapons Y37.1 Military operations involving destruction of aircraft Y37.2 Military operations involving other explosions and fragments Y37.3 Military operations involving fire/hot subst Y37.4 Milt op involving firearm discharge and oth conventl warfare Y37.5 Military operations involving nuclear weapons Y37.6 Military operations involving biological weapons Y37.7 Milt op involving chemical weapons and oth unconvtl warfare Y37.9 Other and unspecified military operations Y37.A Blast overpressure in military operations
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.