Chapter 20

V00–Y99: External Causes of Morbidity

External Causes of Morbidity diagnostic classification updated for 2026.

Internal Codes
  • 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

  • Y38.9

    Terrorism, secondary effects

  • Y38.9X

    Terrorism, secondary effects

  • 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

    Failure of sterile precautions during surgical and medical care

  • 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

    Failure in dosage during 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

  • Y63.8

    Failure in dosage during other surgical and medical care

  • Y63.9

    Failure in dosage during unspecified surgical and medical care

  • Y64

    Contaminated medical or biological substances

  • Y64.0

    Contaminated medical or biological substance, transfused or infused

  • Y64.1

    Contaminated medical or biological substance, injected or used for immunization

  • Y64.8

    Contaminated medical or biological substance administered by other means

  • Y64.9

    Contaminated medical or biological substance administered by unspecified means

  • Y65

    Other misadventures during surgical and medical care

  • Y65.0

    Mismatched blood in transfusion

  • Y65.1

    Wrong fluid used in infusion

  • Y65.2

    Failure in suture or ligature during surgical operation

  • Y65.3

    Endotracheal tube wrongly placed during anesthetic procedure

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