Terrorism (Y38) ICD-10-CM
The Y38 code range covers terrorism with 150 ICD-10-CM diagnosis codes. 96 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- 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
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
- code for place of occurrence Y92
7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
- The appropriate 7th character is to be added to each code from category Y38
7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.
- A - initial encounter
- D - subsequent encounter
- S - sequela
Codes in the Y38 Range 150 codes · 96 billable
- Y38 TerrorismNon-billable
- Y38.0 Terrorism involving explosion of marine weaponsNon-billable
- Y38.0X Terrorism involving explosion of marine weaponsNon-billable
- Y38.0X1 Terrorism involving explosion of marine weapons, public safety official injuredNon-billable
- Y38.0X1A Terrorism involving explosion of marine weapons, public safety official injured, initial encounter
- Y38.0X1D Terrorism involving explosion of marine weapons, public safety official injured, subsequent encounter
- Y38.0X1S Terrorism involving explosion of marine weapons, public safety official injured, sequela
- Y38.0X2 Terrorism involving explosion of marine weapons, civilian injuredNon-billable
- Y38.0X2A Terrorism involving explosion of marine weapons, civilian injured, initial encounter
- Y38.0X2D Terrorism involving explosion of marine weapons, civilian injured, subsequent encounter
- Y38.0X2S Terrorism involving explosion of marine weapons, civilian injured, sequela
- Y38.0X3 Terrorism involving explosion of marine weapons, terrorist injuredNon-billable
- Y38.0X3A Terrorism involving explosion of marine weapons, terrorist injured, initial encounter
- Y38.0X3D Terrorism involving explosion of marine weapons, terrorist injured, subsequent encounter
- Y38.0X3S Terrorism involving explosion of marine weapons, terrorist injured, sequela
- Y38.1 Terrorism involving destruction of aircraftNon-billable
- Y38.1X Terrorism involving destruction of aircraftNon-billable
- Y38.1X1 Terrorism involving destruction of aircraft, public safety official injuredNon-billable
- Y38.1X1A Terrorism involving destruction of aircraft, public safety official injured, initial encounter
- Y38.1X1D Terrorism involving destruction of aircraft, public safety official injured, subsequent encounter
- Y38.1X1S Terrorism involving destruction of aircraft, public safety official injured, sequela
- Y38.1X2 Terrorism involving destruction of aircraft, civilian injuredNon-billable
- Y38.1X2A Terrorism involving destruction of aircraft, civilian injured, initial encounter
- Y38.1X2D Terrorism involving destruction of aircraft, civilian injured, subsequent encounter
- Y38.1X2S Terrorism involving destruction of aircraft, civilian injured, sequela
- Y38.1X3 Terrorism involving destruction of aircraft, terrorist injuredNon-billable
- Y38.1X3A Terrorism involving destruction of aircraft, terrorist injured, initial encounter
- Y38.1X3D Terrorism involving destruction of aircraft, terrorist injured, subsequent encounter
- Y38.1X3S Terrorism involving destruction of aircraft, terrorist injured, sequela
- Y38.2 Terrorism involving other explosions and fragmentsNon-billable
- Y38.2X Terrorism involving other explosions and fragmentsNon-billable
- Y38.2X1 Terrorism involving other explosions and fragments, public safety official injuredNon-billable
- Y38.2X1A Terrorism involving other explosions and fragments, public safety official injured, initial encounter
- Y38.2X1D Terrorism involving other explosions and fragments, public safety official injured, subsequent encounter
- Y38.2X1S Terrorism involving other explosions and fragments, public safety official injured, sequela
- Y38.2X2 Terrorism involving other explosions and fragments, civilian injuredNon-billable
- Y38.2X2A Terrorism involving other explosions and fragments, civilian injured, initial encounter
- Y38.2X2D Terrorism involving other explosions and fragments, civilian injured, subsequent encounter
- Y38.2X2S Terrorism involving other explosions and fragments, civilian injured, sequela
- Y38.2X3 Terrorism involving other explosions and fragments, terrorist injuredNon-billable
- Y38.2X3A Terrorism involving other explosions and fragments, terrorist injured, initial encounter
- Y38.2X3D Terrorism involving other explosions and fragments, terrorist injured, subsequent encounter
- Y38.2X3S Terrorism involving other explosions and fragments, terrorist injured, sequela
- Y38.3 Terrorism involving fires, conflagration and hot substancesNon-billable
- Y38.3X Terrorism involving fires, conflagration and hot substancesNon-billable
- Y38.3X1 Terrorism involving fires, conflagration and hot substances, public safety official injuredNon-billable
- Y38.3X1A Terrorism involving fires, conflagration and hot substances, public safety official injured, initial encounter
- Y38.3X1D Terrorism involving fires, conflagration and hot substances, public safety official injured, subsequent encounter
- Y38.3X1S Terrorism involving fires, conflagration and hot substances, public safety official injured, sequela
- Y38.3X2 Terrorism involving fires, conflagration and hot substances, civilian injuredNon-billable
- Y38.3X2A Terrorism involving fires, conflagration and hot substances, civilian injured, initial encounter
- Y38.3X2D Terrorism involving fires, conflagration and hot substances, civilian injured, subsequent encounter
- Y38.3X2S Terrorism involving fires, conflagration and hot substances, civilian injured, sequela
- Y38.3X3 Terrorism involving fires, conflagration and hot substances, terrorist injuredNon-billable
- Y38.3X3A Terrorism involving fires, conflagration and hot substances, terrorist injured, initial encounter
- Y38.3X3D Terrorism involving fires, conflagration and hot substances, terrorist injured, subsequent encounter
- Y38.3X3S Terrorism involving fires, conflagration and hot substances, terrorist injured, sequela
- Y38.4 Terrorism involving firearmsNon-billable
- Y38.4X Terrorism involving firearmsNon-billable
- Y38.4X1 Terrorism involving firearms, public safety official injuredNon-billable
- Y38.4X1A Terrorism involving firearms, public safety official injured, initial encounter
- Y38.4X1D Terrorism involving firearms, public safety official injured, subsequent encounter
- Y38.4X1S Terrorism involving firearms, public safety official injured, sequela
- Y38.4X2 Terrorism involving firearms, civilian injuredNon-billable
- Y38.4X2A Terrorism involving firearms, civilian injured, initial encounter
- Y38.4X2D Terrorism involving firearms, civilian injured, subsequent encounter
- Y38.4X2S Terrorism involving firearms, civilian injured, sequela
- Y38.4X3 Terrorism involving firearms, terrorist injuredNon-billable
- Y38.4X3A Terrorism involving firearms, terrorist injured, initial encounter
- Y38.4X3D Terrorism involving firearms, terrorist injured, subsequent encounter
- Y38.4X3S Terrorism involving firearms, terrorist injured, sequela
- Y38.5 Terrorism involving nuclear weaponsNon-billable
- Y38.5X Terrorism involving nuclear weaponsNon-billable
- Y38.5X1 Terrorism involving nuclear weapons, public safety official injuredNon-billable
- Y38.5X1A Terrorism involving nuclear weapons, public safety official injured, initial encounter
- Y38.5X1D Terrorism involving nuclear weapons, public safety official injured, subsequent encounter
- Y38.5X1S Terrorism involving nuclear weapons, public safety official injured, sequela
- Y38.5X2 Terrorism involving nuclear weapons, civilian injuredNon-billable
- Y38.5X2A Terrorism involving nuclear weapons, civilian injured, initial encounter
- Y38.5X2D Terrorism involving nuclear weapons, civilian injured, subsequent encounter
- Y38.5X2S Terrorism involving nuclear weapons, civilian injured, sequela
- Y38.5X3 Terrorism involving nuclear weapons, terrorist injuredNon-billable
- Y38.5X3A Terrorism involving nuclear weapons, terrorist injured, initial encounter
- Y38.5X3D Terrorism involving nuclear weapons, terrorist injured, subsequent encounter
- Y38.5X3S Terrorism involving nuclear weapons, terrorist injured, sequela
- Y38.6 Terrorism involving biological weaponsNon-billable
- Y38.6X Terrorism involving biological weaponsNon-billable
- Y38.6X1 Terrorism involving biological weapons, public safety official injuredNon-billable
- Y38.6X1A Terrorism involving biological weapons, public safety official injured, initial encounter
- Y38.6X1D Terrorism involving biological weapons, public safety official injured, subsequent encounter
- Y38.6X1S Terrorism involving biological weapons, public safety official injured, sequela
- Y38.6X2 Terrorism involving biological weapons, civilian injuredNon-billable
- Y38.6X2A Terrorism involving biological weapons, civilian injured, initial encounter
- Y38.6X2D Terrorism involving biological weapons, civilian injured, subsequent encounter
- Y38.6X2S Terrorism involving biological weapons, civilian injured, sequela
- Y38.6X3 Terrorism involving biological weapons, terrorist injuredNon-billable
- Y38.6X3A Terrorism involving biological weapons, terrorist injured, initial encounter
- Y38.6X3D Terrorism involving biological weapons, terrorist injured, subsequent encounter
- Y38.6X3S Terrorism involving biological weapons, terrorist injured, sequela
- Y38.7 Terrorism involving chemical weaponsNon-billable
- Y38.7X Terrorism involving chemical weaponsNon-billable
- Y38.7X1 Terrorism involving chemical weapons, public safety official injuredNon-billable
- Y38.7X1A Terrorism involving chemical weapons, public safety official injured, initial encounter
- Y38.7X1D Terrorism involving chemical weapons, public safety official injured, subsequent encounter
- Y38.7X1S Terrorism involving chemical weapons, public safety official injured, sequela
- Y38.7X2 Terrorism involving chemical weapons, civilian injuredNon-billable
- Y38.7X2A Terrorism involving chemical weapons, civilian injured, initial encounter
- Y38.7X2D Terrorism involving chemical weapons, civilian injured, subsequent encounter
- Y38.7X2S Terrorism involving chemical weapons, civilian injured, sequela
- Y38.7X3 Terrorism involving chemical weapons, terrorist injuredNon-billable
- Y38.7X3A Terrorism involving chemical weapons, terrorist injured, initial encounter
- Y38.7X3D Terrorism involving chemical weapons, terrorist injured, subsequent encounter
- Y38.7X3S Terrorism involving chemical weapons, terrorist injured, sequela
- Y38.8 Terrorism involving other and unspecified meansNon-billable
- Y38.80 Terrorism involving unspecified meansNon-billable
- Y38.80XA Terrorism involving unspecified means, initial encounter
- Y38.80XD Terrorism involving unspecified means, subsequent encounter
- Y38.80XS Terrorism involving unspecified means, sequela
- Y38.81 Terrorism involving suicide bomberNon-billable
- Y38.811 Terrorism involving suicide bomber, public safety official injuredNon-billable
- Y38.811A Terrorism involving suicide bomber, public safety official injured, initial encounter
- Y38.811D Terrorism involving suicide bomber, public safety official injured, subsequent encounter
- Y38.811S Terrorism involving suicide bomber, public safety official injured, sequela
- Y38.812 Terrorism involving suicide bomber, civilian injuredNon-billable
- Y38.812A Terrorism involving suicide bomber, civilian injured, initial encounter
- Y38.812D Terrorism involving suicide bomber, civilian injured, subsequent encounter
- Y38.812S Terrorism involving suicide bomber, civilian injured, sequela
- Y38.89 Terrorism involving other meansNon-billable
- Y38.891 Terrorism involving other means, public safety official injuredNon-billable
- Y38.891A Terrorism involving other means, public safety official injured, initial encounter
- Y38.891D Terrorism involving other means, public safety official injured, subsequent encounter
- Y38.891S Terrorism involving other means, public safety official injured, sequela
- Y38.892 Terrorism involving other means, civilian injuredNon-billable
- Y38.892A Terrorism involving other means, civilian injured, initial encounter
- Y38.892D Terrorism involving other means, civilian injured, subsequent encounter
- Y38.892S Terrorism involving other means, civilian injured, sequela
- Y38.893 Terrorism involving other means, terrorist injuredNon-billable
- Y38.893A Terrorism involving other means, terrorist injured, initial encounter
- Y38.893D Terrorism involving other means, terrorist injured, subsequent encounter
- Y38.893S Terrorism involving other means, terrorist injured, sequela
- Y38.9 Terrorism, secondary effectsNon-billable
- Y38.9X Terrorism, secondary effectsNon-billable
- Y38.9X1 Terrorism, secondary effects, public safety official injuredNon-billable
- Y38.9X1A Terrorism, secondary effects, public safety official injured, initial encounter
- Y38.9X1D Terrorism, secondary effects, public safety official injured, subsequent encounter
- Y38.9X1S Terrorism, secondary effects, public safety official injured, sequela
- Y38.9X2 Terrorism, secondary effects, civilian injuredNon-billable
- Y38.9X2A Terrorism, secondary effects, civilian injured, initial encounter
- Y38.9X2D Terrorism, secondary effects, civilian injured, subsequent encounter
- Y38.9X2S Terrorism, secondary effects, civilian injured, sequela
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the Y38 range.
Bioterrorism
The use of biological agents in TERRORISM. This includes the malevolent use of BACTERIA; VIRUSES; or other BIOLOGICAL TOXINS against people, ANIMALS; or PLANTS.
Chemical Terrorism
The use of chemical agents in TERRORISM. This includes the malevolent use of nerve agents, blood agents, blister agents, and choking agents (NOXAE).
Terrorism
The use or threatened use of force or violence against persons or property in violation of criminal laws for purposes of intimidation, coercion, or ransom, in support of political or social objectives.
About the Y38 Code Range
The ICD-10 code Y38 series specifically identifies injuries and conditions related to acts of terrorism, categorizing the type of terrorist event and the status of the injured party. These codes enable precise recording of causes such as explosions, fires, firearms, chemical or biological weapons, and nuclear attacks.
Each code under Y38 details the mechanism of terrorism exposure, for instance, Y38.0 is used for terrorism involving marine weapon explosions, while Y38.1 relates to destruction of aircraft, and others address weapons like firearms (Y38.4) or nuclear weapons (Y38.5). Subcategories exist to specify if the injured person is a public safety official, civilian, or terrorist, along with the treatment encounter status such as initial, subsequent, or sequela. For example, the code for terrorism involving destruction of aircraft that injures a public safety official is Y38.1X1, synonymous with terms like “detonation of terrorist bomb on board powered aircraft.” These detailed codes assist medical coders in linking specific terrorist incidents with patient injuries, facilitating accurate documentation and analysis. Thus, the ICD-10 code for terrorism covers a range of violent acts with tailored classification reflecting both event types and affected individuals.
Questions About This Page
How many billable codes are in the Y38 range?
Of the 150 codes in this range, 96 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the Y38 range classify?
The range classifies terrorism. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
