Y38 – Terrorism
ICD-10-CM 2027 diagnosis code · Legal intervention, operations of war, military operations, and terrorism
ICD-10-CM code
Y38
- Code
Y38(claims format:Y38)- Description
- Terrorism
- 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
Billable codes under Y38
Y38 is a header code and cannot be used on claims. Choose the most specific code:
- Y38.0 – Terrorism involving explosion of marine weaponsHeader (more codes below)
- Y38.1 – Terrorism involving destruction of aircraftHeader (more codes below)
- Y38.2 – Terrorism involving other explosions and fragmentsHeader (more codes below)
- Y38.3 – Terrorism involving fires, conflagration and hot substancesHeader (more codes below)
- Y38.4 – Terrorism involving firearmsHeader (more codes below)
- Y38.5 – Terrorism involving nuclear weaponsHeader (more codes below)
- Y38.6 – Terrorism involving biological weaponsHeader (more codes below)
- Y38.7 – Terrorism involving chemical weaponsHeader (more codes below)
- Y38.8 – Terrorism involving other and unspecified meansHeader (more codes below)
- Y38.9 – Terrorism, secondary effectsHeader (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 for Y38
Applicable to:
- These codes are for use to identify injuries resulting from the unlawful use of force or violence against persons or property to intimidate or coerce a Government, the civilian population, or any segment thereof, in furtherance of political or social objective
Use additional code:
- code for place of occurrence (Y92.-)
7th character note:
- The appropriate 7th character is to be added to each code from category Y38
Frequently asked questions
What is ICD-10 code Y38?
Y38 is the ICD-10-CM code for terrorism, in the block Y35-Y38 (Legal intervention, operations of war, military operations, and terrorism).
Is Y38 a billable code?
No. Y38 is a header code with more specific child codes; report one of the billable codes listed above.
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.