2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Injury And Poisoning 800-999 > Poisoning By Drugs, Medicinals And Biological Substances 960-979 > ICD-9-CM Diagnosis 966 Poisoning by anticonvulsants and anti-parkinsonism drugs 966 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 966.0 Poisoning by oxazolidine derivatives 966.0 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 966.1 Poisoning by hydantoin derivatives 966.1 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 966.2 Poisoning by succinimides 966.2 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 966.3 Poisoning by other and unspecified anticonvulsants 966.3 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 966.4 Poisoning by anti-parkinsonism drugs 966.4 is a specific code that can be used to specify a diagnosis