The data are artificial and do not correspond to real patients.
Format
A data.table with the following columns:
person_id: Character vector of the identifier for each personicd: Character vector of the ICD codes recorded for each personflag: Integer vector of the vocabulary of the ICD code (9: ICD-9-CM, 10: ICD-10-CM)entry_date: Vector of typeDateindicating the date each ICD code was recorded.