T37 Poisoning by, adverse effect of and underdosing of other systemic anti-infectives and antiparasitics

Category / Non-billable header 63 subcodes

Block: Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances (T36-T50)

Excludes 1 (cannot be coded together)

  • anti-infectives topically used for ear, nose and throat (T49.6-)
  • anti-infectives topically used for eye (T49.5-)
  • locally applied anti-infectives NEC (T49.0-)

Subcodes

Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.

Code Description Billable
T37..0 Poisoning by, adverse effect of and underdosing of sulfonamides No
T37..0X Poisoning by, adverse effect of and underdosing of sulfonamides No
T37..0X1 Poisoning by sulfonamides, accidental (unintentional) No
T37..0X2 Poisoning by sulfonamides, intentional self-harm No
T37..0X3 Poisoning by sulfonamides, assault No
T37..0X4 Poisoning by sulfonamides, undetermined No
T37..0X5 Adverse effect of sulfonamides No
T37..0X6 Underdosing of sulfonamides No
T37..1 Poisoning by, adverse effect of and underdosing of antimycobacterial drugs No
T37..1X Poisoning by, adverse effect of and underdosing of antimycobacterial drugs No
T37..1X1 Poisoning by antimycobacterial drugs, accidental (unintentional) No
T37..1X2 Poisoning by antimycobacterial drugs, intentional self-harm No
T37..1X3 Poisoning by antimycobacterial drugs, assault No
T37..1X4 Poisoning by antimycobacterial drugs, undetermined No
T37..1X5 Adverse effect of antimycobacterial drugs No
T37..1X6 Underdosing of antimycobacterial drugs No
T37..2 Poisoning by, adverse effect of and underdosing of antimalarials and drugs acting on other blood protozoa No
T37..2X Poisoning by, adverse effect of and underdosing of antimalarials and drugs acting on other blood protozoa No
T37..2X1 Poisoning by antimalarials and drugs acting on other blood protozoa, accidental (unintentional) No
T37..2X2 Poisoning by antimalarials and drugs acting on other blood protozoa, intentional self-harm No
T37..2X3 Poisoning by antimalarials and drugs acting on other blood protozoa, assault No
T37..2X4 Poisoning by antimalarials and drugs acting on other blood protozoa, undetermined No
T37..2X5 Adverse effect of antimalarials and drugs acting on other blood protozoa No
T37..2X6 Underdosing of antimalarials and drugs acting on other blood protozoa No
T37..3 Poisoning by, adverse effect of and underdosing of other antiprotozoal drugs No
T37..3X Poisoning by, adverse effect of and underdosing of other antiprotozoal drugs No
T37..3X1 Poisoning by other antiprotozoal drugs, accidental (unintentional) No
T37..3X2 Poisoning by other antiprotozoal drugs, intentional self-harm No
T37..3X3 Poisoning by other antiprotozoal drugs, assault No
T37..3X4 Poisoning by other antiprotozoal drugs, undetermined No
T37..3X5 Adverse effect of other antiprotozoal drugs No
T37..3X6 Underdosing of other antiprotozoal drugs No
T37..4 Poisoning by, adverse effect of and underdosing of anthelminthics No
T37..4X Poisoning by, adverse effect of and underdosing of anthelminthics No
T37..4X1 Poisoning by anthelminthics, accidental (unintentional) No
T37..4X2 Poisoning by anthelminthics, intentional self-harm No
T37..4X3 Poisoning by anthelminthics, assault No
T37..4X4 Poisoning by anthelminthics, undetermined No
T37..4X5 Adverse effect of anthelminthics No
T37..4X6 Underdosing of anthelminthics No
T37..5 Poisoning by, adverse effect of and underdosing of antiviral drugs No
T37..5X Poisoning by, adverse effect of and underdosing of antiviral drugs No
T37..5X1 Poisoning by antiviral drugs, accidental (unintentional) No
T37..5X2 Poisoning by antiviral drugs, intentional self-harm No
T37..5X3 Poisoning by antiviral drugs, assault No
T37..5X4 Poisoning by antiviral drugs, undetermined No
T37..5X5 Adverse effect of antiviral drugs No
T37..5X6 Underdosing of antiviral drugs No
T37..8 Poisoning by, adverse effect of and underdosing of other specified systemic anti-infectives and antiparasitics No
T37..8X Poisoning by, adverse effect of and underdosing of other specified systemic anti-infectives and antiparasitics No
T37..8X1 Poisoning by other specified systemic anti-infectives and antiparasitics, accidental (unintentional) No
T37..8X2 Poisoning by other specified systemic anti-infectives and antiparasitics, intentional self-harm No
T37..8X3 Poisoning by other specified systemic anti-infectives and antiparasitics, assault No
T37..8X4 Poisoning by other specified systemic anti-infectives and antiparasitics, undetermined No
T37..8X5 Adverse effect of other specified systemic anti-infectives and antiparasitics No
T37..8X6 Underdosing of other specified systemic anti-infectives and antiparasitics No
T37..9 Poisoning by, adverse effect of and underdosing of unspecified systemic anti-infective and antiparasitics No
T37..91 Poisoning by unspecified systemic anti-infective and antiparasitics, accidental (unintentional) No
T37..92 Poisoning by unspecified systemic anti-infective and antiparasitics, intentional self-harm No
T37..93 Poisoning by unspecified systemic anti-infective and antiparasitics, assault No
T37..94 Poisoning by unspecified systemic anti-infective and antiparasitics, undetermined No
T37..95 Adverse effect of unspecified systemic anti-infective and antiparasitic No
T37..96 Underdosing of unspecified systemic anti-infectives and antiparasitics No

Last reviewed: September 2026