T40.3X - Poisoning by, adverse effect of and underdosing of methadone T40.3 - Poisoning by, adverse effect of and underdosing of methadone T40.3X - Poisoning by, adverse effect of and underdosing of methadone T40.3X1 - Poisoning by methadone, accidental (unintentional) T40.3X2 - Poisoning by methadone, intentional self-harm T40.3X3 - Poisoning by methadone, assault T40.3X4 - Poisoning by methadone, undetermined T40.3X5 - Adverse effect of methadone T40.3X6 - Underdosing of methadone