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phi-pii-deid

v0.1.0

Published

Offline share-safe helper for scanning, redacting, verifying, and reporting likely PHI/PII in FHIR JSON artifacts.

Downloads

16

Vulnerabilities

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  • 0Medium
  • 0Low

Links

Git

Maintainers

abhishek-bhatkarabhishek-bhatkar

Keywords

fhirphipiide-identificationcli

Readme

phi-pii-deid

Offline TypeScript CLI for scanning and redacting likely PHI/PII from local FHIR JSON artifacts before sharing them in tickets, tests, demos, or debug notes.

This is a deterministic share-safe helper, not certified HIPAA/CMS de-identification and not an anonymization tool.

Quick Start

npm install
npm test
npm run build
node dist/cli.js scan test/fixtures/synthetic-fhir-bundle.json
node dist/cli.js deidentify test/fixtures/synthetic-fhir-bundle.json --out /tmp/sanitized-fhir.json
node dist/cli.js verify /tmp/sanitized-fhir.json
node dist/cli.js report /tmp/sanitized-fhir.json --out /tmp/sanitized-fhir-report.md

report writes both Markdown and CSV:

/tmp/sanitized-fhir-report.md
/tmp/sanitized-fhir-report.csv

Use --csv-out <file.csv> for a custom CSV path.

Commands

phi-pii-deid scan <file> [--mode default|strict-safe-harbor]
phi-pii-deid deidentify <file> --out <file> [--mode default|strict-safe-harbor]
phi-pii-deid verify <file> [--mode default|strict-safe-harbor]
phi-pii-deid report <file> --out <file.md> [--csv-out <file.csv>] [--mode default|strict-safe-harbor] [--cms-report]

From source, use node dist/cli.js ... instead of phi-pii-deid ....

Modes

Default mode redacts common FHIR PHI/PII while preserving useful debugging structure:

  • names, addresses, telecom, email, phone
  • birth dates, exact timestamps
  • identifiers, MRN-like values, SSN-like values
  • URLs/references
  • free-text notes and narrative text

Strict mode adds broader HIPAA Safe Harbor-style checks:

node dist/cli.js deidentify input.json --out output.json --mode strict-safe-harbor

Additional strict checks include dates except year, ages over 89, fax, health plan beneficiary numbers, account numbers, license/certificate numbers, vehicle IDs, device IDs, IPs, biometrics, and image/attachment-like fields.

--cms-report suppresses small aggregate report counts from 1-10 as <11 in Markdown summaries. It does not perform full CMS output review.

Limits

The tool uses local deterministic rules only. It can miss PHI/PII in unusual fields, encoded payloads, attachments, images, custom extensions, or free text that does not match a rule.

Do not use real company data, production logs, tenant IDs, patient IDs, or internal workflow examples in public demos/tests. Fixtures in this repo are synthetic only.