Chicago Department of Public Health

We have an ongoing effort to establish ELR from Chicago hospitals into our NEDSS solution. We request LOINC codes be sent in OBX-3 and OBR-4 in their HL7 messages, and provide prospective ELR providers with a library of requested LOINC codes for the most common tests that define each reportable condition. We are also building an ELR interface to be deployed behind each interested hospital's firewall that maps their local LIS codes to the LOINCs that we request. We use RELMA to assist with choosing the optimal LOINC for our library.