Medical Record Number (MRN) PII Masking Engine
Masks patient Medical Record Numbers (MRN) in health informatics logs for HIPAA compliance.
Notice: engineering verification utility. Use test or de-identified data and verify results independently before relying on them.
How it works
Standard: HIPAA Privacy Rule 45 CFR § 164.514
Formula: Regex match MRN pattern -> replace initial digits with masking characters
Checks: Valid health record string
Calculated locally in browser memory; nothing leaves your browser.
Deterministic local-first client-side execution. Provided as-is without warranty.