Follow up from call discussing the meaning of "Must Support"-

The CRD profile for ServiceRequest currently marks ext-coverage-information as Must Support, however we've discussed how this information is often not available associated with the service and it will be more reliable to just get the patient level Coverages in the prefetch.

The various CRD profiles should be reviewed and have the "Must Support" removed from ext-coverage-information (and possibly other fields?). It may also make sense to remove ext-coverage-information entirely, though there may be scenarios later in the life cycle where we do know the coverage associated with the service.