Sample table of ICD occurrencesSource:
The data are artificial and do not correspond to real patients.
A data.table with the following columns:
person_id: Character vector of the identifier for each person
icd: Character vector of the ICD codes recorded for each person
flag: Integer vector of the vocabulary of the ICD code (9: ICD-9-CM, 10: ICD-10-CM)
entry_date: Vector of type
Dateindicating the date each ICD code was recorded.