HL7 Information 26
HL7 and Beyond: Vyne Medical’s Iguana story
In the ever-evolving landscape of healthcare, technology plays a crucial role in optimizing patient care and improving outcomes. Vyne Medical, a provider of innovative solutions for hospitals and health systems, stands at the forefront of converting raw data into actionable information. With over 800 healthcare clients across the United States, their integrated view of patient […]
High Availability and Fault Tolerance In Your Disaster Recovery Policy
High availability vs fault tolerance. While there are definitely similarities between these two terms, when it comes to your organization’s backup plan for when your systems and applications go down, it’s worthwhile knowing their differences to understand how they help your business comply with a HIPAA disaster recovery policy. Disaster Recovery (DR) refers to […]
Understanding HL7 Messages
What are HL7 messages? HL7 Messages are used to transfer electronic data between disparate healthcare systems. Each HL7 message sends information about a particular event such as a patient admission. This section describes the contents of an HL7 message and how an HL7 message is organized. The following topics are covered: The components of an […]
HL7 Delimiter Characters
As you have seen in the previous sections, certain special characters separate one composite in a segment from another, or separate one sub-composite from another. These special characters are known as delimiter characters. This section describes delimiter characters in more detail, how to use escape characters to include a delimiter character as part of a […]
Delimiter Escape Sequences
If an HL7 message contains one of the special delimiter characters as part of its message content, you can use a special escape sequence to specify the delimiter character. This ensures that any application that processes HL7 messages can always distinguish between a delimiter character and a character that is part of the message text. […]
Determining the HL7 Message Type
Each HL7 message is of a particular message type. This HL7 message type indicates what health-related information is being provided in this message. The message type also determines what segments can be included as part of the message. To determine the message type of an HL7 message, examine its MSH segment. The message type is […]
Repeating and Optional Segments
Some HL7 message types allow a segment to be repeated one or more times, or allow a segment to be optionally present. For example, repeating segments are useful for messages that contain contact information, as they make it possible to provide more than one contact. For instance, multiple NK1 (Next of Kin) segments may be […]
Custom Segments: HL7 Z-segments
If an HL7 message contains customized data that cannot be included in any segment that is defined for its message type, you can create a custom segment to transmit this data. By convention, all custom segments begin with the letter Z. For example, a ZPD segment could be created to contain customized patient demographics information. […]
Present but Null Fields
In segments, it is important to note that there is a difference between fields that have no value defined for them and fields that have a null value defined for them. If a field is not defined, there is nothing between the two | characters that delimit the field: OBR||||||||| A null value is indicated […]
HL7 Versions
To make it easier to send and receive health-care information, the HL7 organization has defined a standard that specifies what types of HL7 messages can be sent, what segments can be included in these messages, and what fields can be included in their segments. The HL7 standard is constantly evolving. To date, the HL7 committee […]
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