feed hl7v2 emergency and urgent care visit data to public health syndromic surveillance systems using the cdc phin messaging guide and nssp/biosense onboarding

Steps

1. Build outbound HL7 v2.5.1 visit messages conformant to the CDC PHIN Messaging Guide for Syndromic Surveillance rather than reusing a generic ADT interface as-is
2. Validate every message against the NIST HL7 v2.5.1 Syndromic Surveillance Validation Tool, which NSSP requires as a compliance gate before onboarding
3. Run a new-facility test period producing at least 30 days of guide-compliant HL7 messages as part of the NSSP onboarding process before moving to production
4. Route production messages to the CDC's cloud-based BioSense Platform or, in most jurisdictions, to your state/local public health authority's endpoint which in turn forwards to BioSense -- confirm the actual routing path used in your jurisdiction rather than assuming direct-to-CDC submission
5. Track your facility's status through NSSP's phased onboarding resources (facility identification, testing, validation, production) since passing local message validation alone does not constitute completed onboarding