Local Implementation Guide for HL7 2.5.1 Immunization ...

MSH-3 This field uniquely identifies the sending application. In the case of an IIS, it will be found in the list of IIS applications in Appendix A, User-defined table 0300. This is not the product, but rather the name of the specific instance. For instance, the IIS in Georgia (GRITS) is an … ................
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