T50.994 - Poisoning by other drugs, medicaments and biological substances, undetermined T50.9 - Poisoning by, adverse effect of and underdosing of other and unspecified drugs, medicaments and biological substances T50.99 - Poisoning by, adverse effect of and underdosing of other drugs, medicaments and biological substances T50.994 - Poisoning by other drugs, medicaments and biological substances, undetermined