Inter Laboratory Workflow

From IHE Wiki
Revision as of 09:33, 17 February 2016 by Fmacary (talk | contribs)
Jump to navigation Jump to search
This profile is part of the Pathology and Laboratory Medicine (PaLM) domain, which merged the former AP and LAB domains since 2016, January 4th.

Inter Laboratory Workflow (ILW) supports the workflow of orders and results of in vitro diagnostic tests between a requesting laboratory and a subcontracting laboratory.


The Inter-Laboratory Workflow Profile covers the workflow of orders and results beween a requesting lab providing the specimens and the orders and a subcontracting lab performing the tests and reporting the results to the former one. This workflow is able to carry the payors information along with the order (patient insurances, guarantor, ...). The structured results may be accompanied by a pdf copy of the performing lab report.

Ihe lab ilw proc.jpg


Improves Throughput in Care Process


The Inter-Laboratory Workflow (ITW) Integration Profile is bound to in vitro diagnostic testing. The specimen is always provided by the requesting lab. The subcontracting lab does not see the patient. This profile supports all laboratory specialties but anatomic pathology.

Use cases:
The ILW Integration Profile covers three major use cases:

  • Cooperation between a hospital and a specialized private laboratory
  • Specific tests subcontracted to a national reference laboratory
  • Distributed process in a cooperative group of laboratories

ILW Integration Profile defines 2 Transactions: LAB-35 "Sub-order management" and LAB-36 "Sub-order results delivery". Both transactions are based on HL7 release 2.5.1 messaging standard. LAB-35 is implementing an OML/ORL message pair. LAB-36 is implementing an ORU/ACK message pair.

Systems Affected

Systems involved in this profile are the laboratory informations systems (LIS) of the requesting lab and the subcontracting lab, messaging with one another.

Actors & Transactions:

Ilw actors-transactions.JPG


Profile Status: Trial Implementation

Documents: IHE Laboratory Technical Framework:

Underlying standards:

  • HL7 2.5.1

See Also

Related Profiles

  • Integration Profiles ILW depends on
  • none
  • Integration Profiles depending upon LTW
  • none

Consumer Information

This page is based on the Profile Template