HL7 v2 ACK Generator
Builds an HL7 acknowledgement (ACK) for an inbound message with the sender and receiver swapped.
Clinical safety notice: Zero real patient data (PHI/PII) may be entered into this browser utility. Use synthetic test payloads only. Local-first deterministic processing; nothing leaves your browser.
How it works
Standard: HL7 v2 acknowledgement (MSH and MSA segments)
Formula: ACK sender = original receiver; ACK receiver = original sender; MSA-1 = AA, AE or AR; MSA-2 = original MSH-10
Checks: Original MSH-10 present; CODE is AA, AE or AR; error text required for AE and AR
Calculated locally in browser memory; nothing leaves your browser.
Deterministic local-first client-side execution. Provided as-is without warranty.