Laboratory Code Sets Distribution

Laboratory Code Sets Distribution (LCSD) Integration Profile supports.

Summary

A set of common codes is generally used by multiple application systems in a laboratory workflow environment. These common codes need to be synchronized across the various applications at a given site. In many implementations, one application system will be the author (the "master") of the code set. The responsibility for managing a code set may also be distributed among different systems. This profile provides a way for the master of a code set (battery, test and observation codes) to send the code set to other applications.

Benefits

Favors semantic interoperability of workflows involving laboratories

Sharing of common nomenclatures between the systems involved in laboratory workflows.

Details

Use case:

The system owning a laboratory code set - the Code Set Master Actor - sends the whole code set to any Code Set Consumer Actor, each time an update on this code set is needed.

Transactions:
The LCSD Integration Profile defines a single Transaction called LAB-51. This transaction is based on HL7 release 2.5 or 2.5.1 messaging standard, namely the "master file notification" messages "MFN":

LAB-51 Laboratory Code Set Management. This transaction provides the set of MFN messages that enable to replace wholy the current version of a code set with a new version:

MFN^M08: Tests producing numeric results. In addition, this message can carry the units of measure, te range of decimal precision and the reference range.
MFN^M09: Tests producing categorical observations. In addition, this message can carry the list of valid answers (coded or textual) for each test. It also carries the preferred coding system used.
MFN^M11: Tests producing calculated observations. In addition, this message can carry the derivation rule, which will produce the observations.
MFN^M10: Batteries or panels. This message carries the batteries, their chararacteristics and the list of tests they are composed of.

Systems Affected

Systems involved in this profile can be any of the systems involved in the workflow profiles of the Laboratory Technical Framework (LTW, LPOCT, LDA, LBL). One system plays the role of the Code Set Master and another system plays the role of the Code Set Consumer

Actors & Transactions: