About this De-identifier
Troubleshooting often requires sharing message structure with teammates, vendors, or support staff. This scrubber helps by replacing a few common PID-based patient identifiers with placeholders, making it easier to create a testable example while still reminding you to manually review the rest of the message.
Who this calculator is for
- Interface analysts preparing an HL7 example for troubleshooting, demos, or internal documentation.
- Developers who need a quick first pass at removing obvious patient identifiers from a v2 message.
- Teams teaching HL7 structure who want realistic-looking examples without using live demographic values.
When to use it
- Use it when you want to replace common PID identifiers before sharing a message snippet.
- Use it as an early cleanup step before pasting a message into viewers, parsers, tickets, or chat threads.
- Use it to generate a lower-risk demo message while preserving overall segment layout.
How to use this calculator
- Paste your Raw HL7 Message.
- The tool automatically scans for the PID segment.
- It replaces fields like Name, DOB, Address, and ID with randomized or generic placeholders.
- Copy the Anonymized Message.
Key assumptions
- This tool only edits a small set of PID fields in a simple pipe-delimited message and leaves the rest of the message unchanged.
- It does not inspect NK1, GT1, IN1, OBX, NTE, Z-segments, attachments, or free-text narrative fields for identifiers.
- The output is intended as a starting point for manual review, not as a claim of full de-identification or regulatory compliance.
Accuracy and testing
Review formula sources, default test cases, assumptions, unit handling, rounding rules, and changelog for this calculator.
How this calculator works
The scrubber uses regex to find the PID segment. It then splits the fields by the pipe `|` delimiter and overwrites specific indices (PID-2, PID-3, PID-5, PID-7, PID-11) with dummy data.
Inputs explained
Raw Message
The original message containing real patient data.
Understanding your results
The output keeps the same message structure but swaps a few common PID values for placeholders. You still need to manually inspect the rest of the message for identifiers in other segments, comments, attachments, or custom fields.
Key Features
- PID Segment Scrubbing
- Client-Side Privacy
- Generic Placeholders
Tips & Best Practices
- Always manually verify the output before sharing. Some interfaces put PHI in unusual fields (like Z-segments or NTE comments) which this tool might miss.
- Local browser processing reduces exposure, but you should still avoid using live PHI when a synthetic example will do.
Glossary of Terms
- PHI
- Protected Health Information. Any information in a medical record that can be used to identify an individual.
- De-identification
- The process of removing identifying information from data.