Y36.6X
⚠ Non-billable
War operations involving biological weapons
ICD-10-CM · FY2026 · External Causes of Morbidity
Code
Y36.6X
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
External Causes of Morbidity
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code Y36.6X?
ICD-10-CM code Y36.6X represents War operations involving biological weapons. It is a non-billable header code requiring a more specific subcategory in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is Y36.6X billable?
No. Y36.6X is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is Y36.6X in?
Y36.6X belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.
Related codes in the Y36 category
Y36
Operations of war
Non-billable
Y36.0
War operations involving explosion of marine weapons
Non-billable
Y36.1
War operations involving destruction of aircraft
Non-billable
Y36.2
War operations involving other explosions and fragments
Non-billable
Y36.3
War operations involving fires, conflagrations and hot substances
Non-billable
Y36.4
War operations involving firearm discharge and other forms of conventional warfare
Non-billable
Y36.5
War operations involving nuclear weapons
Non-billable
Y36.6
War operations involving biological weapons
Non-billable
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