EPIC EDI101 Bridges Interfaces Questions
and Answers
Does every HL7 message have to be encoded with the characters 1A-&?
ANSWER: No, the encoding characters can be any printable character.
Imagine that your message begins with MSHIA&1. How would you encode the string
"The result is positive & has a value of 2.7 x 10A3."?
ANSWER: The result is positive \T\ has a value of 2.7 x 10\S\3.
Why is the NTE segment special?
ANSWER: Context; its meaning depends on the segment it follows
What is the difference between receiving an empty field |I and the delete sequence?
ANSWER: An empty field is ignored by the interface, whereas the delete character
will delete information from the database, assuming the field in question supports
the delete character.
Aside from HL7 Version 2, name two other standards supported in Bridges?
ANSWER: X12, FHIR, NCPDP, DICOM, and Direct.
What is Bridges?
ANSWER: Epic's interfacing messages along with the application. It consists of both
the interface infrastructure to build, send, receive, and file messages along with the
tools and utilities to maintain those interfaces
What are stored in the Event Queue, Data Queue, and Control Queue?
ANSWER: The Event Queue contains the information needed to build a message.
Usually this is a patient ID, an encounter DAT, and the type of message to be built,
amongst other information.
The Data Queue contains the text of HL7 messages and additional metadata.
The Control Queue is a to-do list of message numbers to send or file.
Are messages ever manually deleted from the Data Queue?
ANSWER: No, never. They are purged only by an automated purge job.
