T37.5X4

Poisoning by antiviral drugs, undetermined

Requires 7th character

T37.5X4 requires a 7th character to be reported. Choose a complete code below.

Inclusion terms

Includes (from T37)

  • adverse effect of correct substance properly administered
  • poisoning by overdose of substance
  • poisoning by wrong substance given or taken in error
  • underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed
  • Note: Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • Note: The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
  • Note: The drug giving rise to the adverse effect should be identified by use of codes from categories T36-T50 with fifth or sixth character 5.

Excludes1

Not coded here — never report together with this code.

  • amantadine (T42.8-) (from T37.5)
  • cytarabine (T45.1-) (from T37.5)
  • toxic reaction to local anesthesia in pregnancy (O29.3-) (from T37)
  • anti-infectives topically used for ear, nose and throat (T49.6-) (from T37)
  • anti-infectives topically used for eye (T49.5-) (from T37)
  • locally applied anti-infectives NEC (T49.0-) (from T37)

Excludes2

Not included here — may be reported together when both conditions exist.

  • birth trauma (P10-P15) (from T37)
  • obstetric trauma (O70-O71) (from T37)
  • abuse and dependence of psychoactive substances (F10-F19) (from T37)
  • abuse of non-dependence-producing substances (F55.-) (from T37)
  • immunodeficiency due to drugs (D84.821) (from T37)
  • drug reaction and poisoning affecting newborn (P00-P96) (from T37)
  • pathological drug intoxication (inebriation) (F10-F19) (from T37)

Code first

Sequence the underlying condition first.

  • , for adverse effects, the nature of the adverse effect, such as: (from T37)
  • adverse effect NOS (T88.7) (from T37)
  • aspirin gastritis (K29.-) (from T37)
  • blood disorders (D56-D76) (from T37)
  • contact dermatitis (L23-L25) (from T37)
  • dermatitis due to substances taken internally (L27.-) (from T37)
  • nephropathy (N14.0-N14.2) (from T37)

Use additional code

Add a code to identify the following, if applicable.

  • code to identify any retained foreign body, if applicable (Z18.-) (from T37)
  • code(s) to specify: (from T37)
  • manifestations of poisoning (from T37)
  • underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9) (from T37)
  • underdosing of medication regimen (Z91.12-, Z91.13-) (from T37)

7th character

This code requires a 7th character (defined at T37). Use the placeholder "X" for missing positions.

CharacterMeaning
Ainitial encounter
Dsubsequent encounter
Ssequela

Parent code

  • T37.5XPoisoning by, adverse effect of and underdosing of antiviral drugsNeeds 7th char

More specific codes T37.5X4

  • T37.5X4APoisoning by antiviral drugs, undetermined, initial encounterBillable
  • T37.5X4DPoisoning by antiviral drugs, undetermined, subsequent encounterBillable
  • T37.5X4SPoisoning by antiviral drugs, undetermined, sequelaBillable

Related codes

  • T37.5X1Poisoning by antiviral drugs, accidental (unintentional)Needs 7th char
  • T37.5X2Poisoning by antiviral drugs, intentional self-harmNeeds 7th char
  • T37.5X3Poisoning by antiviral drugs, assaultNeeds 7th char
  • T37.5X5Adverse effect of antiviral drugsNeeds 7th char
  • T37.5X6Underdosing of antiviral drugsNeeds 7th char

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