We recently added several new properties for the problems endpoint response:

Property	Type	Description	Example
documentedDate	datetime	(Optional) Date that the issue was documented. If this came from a visit summary, it will be the date of the visit. Otherwise, it will be the date that the summary CCD was generated.	"2018-09-21T00:00:00.000Z"
startDate	datetime	(Optional) Reflects the physician's best understanding when this problem first appeared.	"2018-01-21T00:00:00.000Z"
endDate	datetime	(Optional) Reflects the physician's best understanding when this problem is resolved. Not all problems will contain an end date.	"2018-09-21T00:00:00.000Z"
sourceOfInfo	string	(Optional) Context of the problem e.g. "Resolved Problem","Active Problem", "Encounter Diagnosis", etc.	"Problem List"
comments	string	(Optional) Comments or notes that the provider has related to the issue.
concernStartDate	datetime	(Optional) Start of the physician's concern about the problem. Can be different from when the problem actually started.	"2018-09-21T00:00:00.000Z"
concernEndDate	datetime	(Optional) End of the physician's concern about the problem. Can be different from when the problem actually ended.	"2018-11-23T00:00:00.000Z"

We have deprecated the following field. It will continue to be populated but we recommend using "documentedDate" instead:

Property	Type	Description
dateTime	datetime	Date associated with the problem