HL7 Message Analyzer — App

Analyzer tips

ACK control IDs

When you acknowledge a message, MSA-2 must echo the inbound MSH-10 (Message Control ID). The ACK builder does this automatically. AA = accept, AE = application error, AR = reject.

MLLP framing

Wire logs often wrap ER7 with MLLP: start block 0x0B, end block 0x1C + 0x0D. Paste the whole frame — the analyzer strips framing before parse.

PHI

Nothing is uploaded. Open Client-side only in the top bar for how that works, plus benefits and limits. Use Scrub PHI before screenshots — it replaces common name, MRN, accession, and address fields with synthetic values. Always review the result.

Original message

The Message panel always keeps your original paste. Related templates and Inspect ACK only change what is shown in Inspect — use Back to original anytime. Export CSV / JSON downloads the visible Inspect fields. Import uses those table Values (edit PID-5 in rows, not the raw snapshot) — nothing is uploaded.

ORM → ORR → ORU

ORM = order. ORR = order response (accept/reject). ORU = observation/result (the report). Stubs keep IDs only — OBX text is always [[edit report text]].

Compare & batch

Use the top-bar Compare view for side-by-side diffs. Multi-message logs with several MSH segments show a batch picker under Message.

Message

Original paste — always kept

Remember last message in this browser

Ctrl/⌘ + Enter to parse · Import opens CSV or JSON from this computer · Related templates never overwrite this field

Inspect

Paste an HL7 v2 message or load a sample.

Show empty

MSH-9—

Control ID—

Version—

Filter fields

A flat list of every field — easier to scan and search than the segment tree.

HL7 tag	Description	Value
Nothing to parse yet.

Respond

Workflow stubs, related templates, ACK builder

Related conversation

Response message (raw)

Select a related template, workflow stub, or Inspect ACK to view its raw HL7 here.

ACK builder

Code

Error text

Message

Inspect

Respond

Compare messages

Troubleshooting challenge

Client-side only

How it works

Benefits

Limits