Y37.6 – Military operations involving biological weapons
ICD-10-CM 2027 diagnosis code · Legal intervention, operations of war, military operations, and terrorism
- Code
Y37.6(claims format:Y376)- Description
- Military operations involving biological weapons
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 20. External causes of morbidity (V00-Y99)
- Block
- Y35-Y38 Legal intervention, operations of war, military operations, and terrorism
- Parent codes
- Y37
Billable codes under Y37.6
Y37.6 is a header code and cannot be used on claims. Choose the most specific code:
- Y37.6X – Military operations involving biological weaponsHeader (more codes below)
7th character values
Codes in this category need a 7th character to describe the encounter or episode of care (use placeholder X for empty positions).
| Character | Meaning |
|---|---|
A | initial encounter |
D | subsequent encounter |
S | sequela |
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Y37 – Military operations
- injuries to military personnel and civilians occurring during peacetime on military property and during routine military exercises and operations
- 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.-)
- The appropriate 7th character is to be added to each code from category Y37
Related codes in Y37
- Y37.0 – Military operations involving explosion of marine weaponsHeader
- Y37.1 – Military operations involving destruction of aircraftHeader
- Y37.2 – Military operations involving other explosions and fragmentsHeader
- Y37.3 – Military operations involving fires, conflagrations and hot substancesHeader
- Y37.4 – Military operations involving firearm discharge and other forms of conventional warfareHeader
- Y37.5 – Military operations involving nuclear weaponsHeader
- Y37.7 – Military operations involving chemical weapons and other forms of unconventional warfareHeader
- Y37.9 – Other and unspecified military operationsHeader
- Y37.A – Blast overpressure in military operationsHeader
Frequently asked questions
What is ICD-10 code Y37.6?
Y37.6 is the ICD-10-CM code for military operations involving biological weapons, in the block Y35-Y38 (Legal intervention, operations of war, military operations, and terrorism).
Is Y37.6 a billable code?
No. Y37.6 is a header code with more specific child codes; report one of the billable codes listed above.
What category does Y37.6 belong to?
It belongs to category Y37 – Military operations.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.