Chapter 20

V00–Y99: External Causes of Morbidity

External Causes of Morbidity diagnostic classification updated for 2026.

Internal Codes
  • Y38.7X3D

    Terrorism involving chemical weapons, terrorist injured, subsequent encounter

  • Y38.7X3S

    Terrorism involving chemical weapons, terrorist injured, sequela

  • Y38.80

    Terrorism involving unspecified means

  • Y38.80XA

    Terrorism involving unspecified means, initial encounter

  • Y38.80XD

    Terrorism involving unspecified means, subsequent encounter

  • Y38.80XS

    Terrorism involving unspecified means, sequela

  • Y38.811

    Terrorism involving suicide bomber, public safety official injured

  • 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 injured

  • 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

  • Y38.891

    Terrorism involving other means, public safety official injured

  • 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 injured

  • 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 injured

  • 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

  • Y38.9X1

    Terrorism, secondary effects, public safety official injured

  • 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 injured

  • 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

  • Y62.0

    Failure of sterile precautions during surgical operation

  • Y62.1

    Failure of sterile precautions during infusion or transfusion

  • Y62.2

    Failure of sterile precautions during kidney dialysis and other perfusion

  • Y62.3

    Failure of sterile precautions during injection or immunization

  • Y62.4

    Failure of sterile precautions during endoscopic examination

  • Y62.5

    Failure of sterile precautions during heart catheterization

  • Y62.6

    Failure of sterile precautions during aspiration, puncture and other catheterization

  • Y62.8

    Failure of sterile precautions during other surgical and medical care

  • Y62.9

    Failure of sterile precautions during unspecified surgical and medical care

  • Y63.0

    Excessive amount of blood or other fluid given during transfusion or infusion

  • Y63.1

    Incorrect dilution of fluid used during infusion

  • Y63.2

    Overdose of radiation given during therapy

  • Y63.3

    Inadvertent exposure of patient to radiation during medical care

  • Y63.4

    Failure in dosage in electroshock or insulin-shock therapy

  • Y63.5

    Inappropriate temperature in local application and packing

  • Y63.6

    Underdosing and nonadministration of necessary drug, medicament or biological substance

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