20211
- Neurology 2021 6 97 (9): e941-e952. (cdc.gov)
E9501
- In ICD-9-CM, two codes were required to describe each poisoning event-a diagnosis code (960-979 and 980-989) to describe the type of drug or toxic substance involved and an external cause code (E850-E858, E860-E869, E930-E949, E950-E952, E961-E962 and E980-E982) to describe the intent of the poisoning or adverse effect (eg, accidental (unintentional), intentional self-harm, homicide or undetermined). (bmj.com)