Defined the parameters for unsolicited update messages in HL7 v2's original-mode framework, specifying what types of results or updates the subscribing system wanted to receive. It appeared in UDM messages alongside URS to filter unsolicited data. Withdrawn from the current standard, it is retained as an empty stub for backward compatibility with legacy interfaces.
from zato.hl7v2.v2_9 import URD
# Withdrawn segment, retained for legacy parsing
urd = URD()
print(urd.to_er7())How to construct and work with real-world URD segments.
Empty withdrawn segment retained for backward-compatible parsing
from zato.hl7v2.v2_9 import URD
# Legacy update definition stub
urd = URD()Minimal wire form when a partner still emits the segment id only
from zato.hl7v2.v2_9 import URD
# No fields on modern builds; keep for parsers
urd = URD()Comment-only usage documents intent without populating fields
from zato.hl7v2.v2_9 import URD
# Retained for legacy unsolicited update flows
urd = URD()Step-by-step guides for working with HL7 v2 in Zato.
HL7 withdrew the original URD definition from current guides. The class remains so legacy messages parse, but there are no modern fields to populate.
No. Prefer current subscription and notification patterns your integration guide specifies. Emit URD only when a downstream system still requires the segment for compatibility.
Map the business need to supported segments and message types in your profile, then retire URD once partners confirm they no longer expect the stub row.
Zato connects to any system that speaks HL7v2 over MLLP or FHIR over REST. This includes Epic, Cerner, Meditech, Allscripts, and other EHR platforms.
Yes, Zato has built-in MLLP support for sending and receiving HL7v2 messages. MLLP channels handle the framing protocol automatically.
Zato supports HL7 v2.9, which is backward compatible with earlier versions including v2.3, v2.5, and v2.7. Standard segments and datatypes are available as typed Python classes.
Yes. Zato handles both HL7v2 and FHIR natively, so you can parse v2 messages and build FHIR resources with IG-specific extensions in the same service. Typed Python classes are available for both protocols, including extensions from US Core, UK Core, Da Vinci, and other Implementation Guides.
Complete list of fields in the URD segment, HL7 v2.9.
| # | Python name | Datatype | Usage | Repeatable | Table |
|---|
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