Existing Wording: ReferralRequest.fulfillmentTime requirements: Use cases: (1) to indicate that the requested service is not to happen before a specified date (2) to indicate that the requested service must happen before a specified date (3) to indicate that the requested service must happen during the specified dates ("low" and "high" values).

Proposed Wording: ReferralRequest.fulfillmentTime requirements: Use cases: (1) to indicate that the requested service is not to happen before a specified date, and saving the start date in Period.start (2) to indicate that the requested service must happen before a specified date, and saving the end date in Period.end (3) to indicate that the requested service must happen during the specified dates ("low" and "high" values).

Comment:

Clarify which field to use for cases 1 and 2 in ReferralRequest.fulfillmentTime