Chapter 20

V00–Y99: External Causes of Morbidity

External Causes of Morbidity diagnostic classification updated for 2026.

Internal Codes
  • Y37.A1XD

    Low level blast overpressure in military operations, subsequent encounter

  • Y37.A1XS

    Low level blast overpressure in military operations, sequela

  • Y37.A2

    High level blast overpressure in military operations

  • Y37.A2XA

    High level blast overpressure in military operations, initial encounter

  • Y37.A2XD

    High level blast overpressure in military operations, subsequent encounter

  • Y37.A2XS

    High level blast overpressure in military operations, sequela

  • Y38.0X1

    Terrorism involving explosion of marine weapons, public safety official injured

  • 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 injured

  • 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 injured

  • 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

  • Y38.1X1

    Terrorism involving destruction of aircraft, public safety official injured

  • 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 injured

  • 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 injured

  • 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

  • Y38.2X1

    Terrorism involving other explosions and fragments, public safety official injured

  • 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 injured

  • 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 injured

  • 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

  • Y38.3X1

    Terrorism involving fires, conflagration and hot substances, public safety official injured

  • 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 injured

  • 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

PreviousPage 185 of 196Next