Schulz and colleagues have written a paper on harmonisation between SNOMED-CT and ICD following on from a previous paper. They describe the basis for an ontological framework including a taxonomy, a logical framework and clear definitions for top level classes within the ontology.
There follows a very neat description of statistical classifications and some of the necessary features of ICD which distinguish it from the ontological framework described. While on the surface that sounds problematic, they also justify the necessity of this arrangement in terms of the other functions of ICD.
SNOMED-CT and ICD serve different functions but the authors suggest a solution to harmonisation lies in a multi-layer architecture. This will be a development with profound consequences that may be gradually seen over decades.
Appendix A – Other Posts in the Series on Health Information Exchanges
Appendix B – Definition of Health Information Exchange
This is the definition of the Health Information Exchange that I use (Hersh et al, 2015)
‘Health information exchange (HIE), the electronic sharing of clinical information across the boundaries of health care organizations‘
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