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Hl7 Overview
WHAT IS HL7
HL7, which is an abbreviation of Health Level
Seven, is a standard for exchanging information
between medical applications. This standard
defines a format for the transmission of healthrelated information.
Examples of HL7 messages include patient
records, laboratory records and billing
information.
WHAT IS AN HL7 MESSAGE
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.
• Message Type
• Trigger Event
Example: ADT-A01
SEGMENTS
Message Header (MSH):

Segment which contains the message type, version and other
important information.
PID:

Patient Identification data
PV1: Patient Visit
IN1: Insurance Segment

AL1: Allergy information
DG1: Diagnosis information
MESSAGE DELIMITERS
The MSH also defines the delimiters used in the message.
• |: Segment delimiter

• ^: Component separator
• ~: Repetition separator
• : Escape character
• &: Sub-component separator
EXAMPLE
Hl7 Overview
SOME STANDARDS USED FOR COMMUNICATION
IN HEALTHCARE
•

Accredited Standards Committee X12 — ASC-X12

•

American Dental Association — ADA o ADA Joint Project
Statement

•

American Society for Testing Materials — ASTM

•

CEN/TC 251

•

Digital Imaging and Communication In Medicine — DICOM

•

eHealth

•

Institute for Electrical and Electronic Engineers — IEEE

•

Integrating the Healthcare Enterprise — IHE

•

National Council for Prescription Drug Program — NCPDP
Image Courtesy: www.vascularbilling.com

Image Courtesy: http://www.modernanalyst.com
COMPLETE WORKFLOW FROM PATIENT VISIT TO
PROCESSING CLAIMS

HL7 Communication

Image Courtesy: http://www.fastemc.com/

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Hl7 Overview

  • 2. WHAT IS HL7 HL7, which is an abbreviation of Health Level Seven, is a standard for exchanging information between medical applications. This standard defines a format for the transmission of healthrelated information. Examples of HL7 messages include patient records, laboratory records and billing information.
  • 3. WHAT IS AN HL7 MESSAGE 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. • Message Type • Trigger Event Example: ADT-A01
  • 4. SEGMENTS Message Header (MSH): Segment which contains the message type, version and other important information. PID: Patient Identification data PV1: Patient Visit IN1: Insurance Segment AL1: Allergy information DG1: Diagnosis information
  • 5. MESSAGE DELIMITERS The MSH also defines the delimiters used in the message. • |: Segment delimiter • ^: Component separator • ~: Repetition separator • : Escape character • &: Sub-component separator
  • 8. SOME STANDARDS USED FOR COMMUNICATION IN HEALTHCARE • Accredited Standards Committee X12 — ASC-X12 • American Dental Association — ADA o ADA Joint Project Statement • American Society for Testing Materials — ASTM • CEN/TC 251 • Digital Imaging and Communication In Medicine — DICOM • eHealth • Institute for Electrical and Electronic Engineers — IEEE • Integrating the Healthcare Enterprise — IHE • National Council for Prescription Drug Program — NCPDP
  • 9. Image Courtesy: www.vascularbilling.com Image Courtesy: http://www.modernanalyst.com
  • 10. COMPLETE WORKFLOW FROM PATIENT VISIT TO PROCESSING CLAIMS HL7 Communication Image Courtesy: http://www.fastemc.com/

Hinweis der Redaktion

  1. ADT-A28 and A31: Patient’s demographics record is added (A28) or updated (A31) in the external systemA04, A01: For a new visit; A08: Update the visit
  2. HL7 Version 2.x; whereas 3.0 is under development