T37.8X4 - Poisoning by other specified systemic anti-infectives and antiparasitics, undetermined T37.8 - Poisoning by, adverse effect of and underdosing of other specified systemic anti-infectives and antiparasitics T37.8X - Poisoning by, adverse effect of and underdosing of other specified systemic anti-infectives and antiparasitics T37.8X4 - Poisoning by other specified systemic anti-infectives and antiparasitics, undetermined