Anonymizing a substance use file means removing data that names the person. 42 CFR Part 2 protects this care with strict redisclosure limits. anonym.plus runs on your own device, and the text stays usable after the swap.
When this applies
A clinic wants to study treatment trends. The raw files name people, dates, and referral sources. Each detail must be hidden before any analysis.
How anonym.plus handles it
- Open the file in anonym.plus on your own device.
- Local OCR reads scanned intake forms too.
- It flags names, dates, and referral sources.
- Review each flag and protect clinical terms.
- Replace each tag with a label, or remove it.
- Save the clean output. The source never leaves your machine.
What you need to provide
- The file (PDF, DOCX, TXT, or scan).
- An operator: Replace, Redact, or Mask.
- Optional: a key map for re-linking.
PHI entity types detected
| Category | anonym.plus entity type | Example |
|---|---|---|
| Person | PERSON | Marcus Hale → [CLIENT_1] |
| Admit date | DATE_TIME | Admitted 02/19/2026 → [DATE] |
| Referrer | ORGANIZATION | Northside Court → [REFERRER] |
| Phone | PHONE_NUMBER | (720) 555 0144 → [PHONE] |
| Record ID | MEDICAL_RECORD_NUMBER | Chart 33841 → [MRN] |
| National ID | US_SSN / NATIONAL_ID | 402-11-7765 → [ID] |
Compliance achieved
- Removes identifiers in SUD data for 42 CFR Part 2.
- Offline by design, so no BAA is needed.
- Source files stay sealed with AES-256-GCM.
- Supports GDPR Art. 9 for EU clients as well.
Anonymize substance use records offline — see plans & start free →
Limitations & cautions
Part 2 caps how SUD data may flow to third parties. The tool strips named identifiers. You still control who receives the output and confirm no rare detail can trace it back to one client.
Frequently asked questions
Does Part 2 cover all addiction care?
It covers federally assisted programs that treat substance use disorder. Many clinics fall under it. When in doubt, treat the file as Part 2 protected.
Can I keep a way to re-link cases?
Yes, with care. Save the key map separately and off the shared copy. Anyone with the clean file alone cannot reverse the swap.
Is this an upload service?
No. The app is local. Files are processed on your machine and never sent away.