HL7 messages transmit data between disparate systems. An HL7 message consists of a group of segments in a defined sequence, with these segments or groups of segments being optional, required, and/or repeatable (referred to as HL7 cardinality).

The HL7HL7 is a Standards Developing Organization accredited by the American National Standards Institute (... More message type defines the purpose for the message being sent and is present in every HL7HL7 is a Standards Developing Organization accredited by the American National Standards Institute (... More message. Message types are identified by a three-character code, and are used in conjunction with a trigger event. An HL7 trigger event is a real-world event that initiates communication and the sending of a message, and is shown as part of the message type. Both the message type and trigger event are found in the MSH-9 field of the message.

For example, the MSH-9 field might contain the value ADT-A01. This means that ADT is the HL7 message type, and A01 is the trigger event. In the HL7 Standard, an ADT-A01 message is known as a “patient admit” message.

Each message type and trigger event within a specific HL7HL7 is a Standards Developing Organization accredited by the American National Standards Institute (... More version has a defined format. There are some message types and triggers that have the exact same format, such as ADT-A01, ADT-A04, ADT-A05 and ADT-A08. But in many cases, the formats vary widely.

Defining an HL7 Message (examples)

define-hl7-message

 

 

 

 

 

 

 

 

 

 

Most commonly used HL7 message types include:

  • ACK – General acknowledgement
  • ADT – Admit, Discharge, Tranfser
  • BAR – Add/change billing account
  • DFT – Detailed financial transaction
  • MDM – Medical document management
  • MFN – Master files notification
  • ORM – Order (Pharmacy/treatment)
  • ORU – Observation result (unsolicited)
  • QRY – Query, original mode
  • RAS – Pharmacy/treatment administration
  • RDE – Pharmacy/treatment encoded order
  • RGV – Pharmacy/treatment give
  • SIU – Scheduling information unsolicited

For a full list of all HL7 message types, refer to Appendix A of the HL7 V2 Standard.

Register for an upcoming HL7: First Steps training class.

How Corepoint Integration Engine works with HL7

 

The #1 Integration Engine Nine Consecutive Years

Customers have confidence in Corepoint Health’s history of focusing on healthcare interoperabilityInteroperability refers to the ability of two or more systems or components to exchange information ... More, as evident by our #1 KLAS® ranking nine years in a row. Discover the power Corepoint Integration Engine offers healthcare providers of all sizes and specialties.

 Print Friendly