Medical Record Redaction

Original Clinical Note

PATIENT: John Smith          MRN: 12345678
DOB: 03/15/1965              DOS: 01/15/2024

CHIEF COMPLAINT: 58-year-old male presents with chest pain x 2 days.

HISTORY OF PRESENT ILLNESS:
Mr. Smith is a 58-year-old male who presents to the ED with complaints
of substernal chest pain that began 2 days ago. Patient states pain
radiates to his left arm. He was previously seen at Memorial Hospital
on 01/13/2024. His wife Mary Smith drove him to the ED today.

Patient lives at 123 Oak Street, Springfield, IL 62701. He can be
reached at (555) 123-4567. His insurance ID is BCBS-987654321.

ASSESSMENT/PLAN:
1. Acute coronary syndrome - will admit to cardiology
2. Contact cardiologist Dr. Johnson at ext. 4321

De-Identified Output (Safe Harbor)

PATIENT: [NAME]               MRN: [MRN]
DOB: [DATE]                   DOS: [DATE]

CHIEF COMPLAINT: [AGE]-year-old male presents with chest pain x 2 days.

HISTORY OF PRESENT ILLNESS:
[NAME] is a [AGE]-year-old male who presents to the ED with complaints
of substernal chest pain that began 2 days ago. Patient states pain
radiates to his left arm. He was previously seen at [FACILITY]
on [DATE]. His wife [NAME] drove him to the ED today.

Patient lives at [ADDRESS]. He can be
reached at [PHONE]. His insurance ID is [INSURANCE_ID].

ASSESSMENT/PLAN:
1. Acute coronary syndrome - will admit to cardiology
2. Contact cardiologist [PROVIDER] at ext. [PHONE_EXT]

Custom MRN Pattern Configuration

{
    "mrn_patterns": [
        {
            "name": "standard_numeric",
            "pattern": "\\b\\d{7,10}\\b",
            "context_required": ["MRN", "Medical Record", "Patient ID", "Chart"]
        },
        {
            "name": "prefixed",
            "pattern": "\\b(MRN|PT|PAT)[-:]?\\d{6,10}\\b",
            "context_required": false
        },
        {
            "name": "institution_specific",
            "pattern": "\\bABC-\\d{8}\\b",
            "context_required": false
        }
    ]
}

// Original HL7 v2 message
MSH|^~\&|HIS|Hospital|LAB|Lab|202401151430||ADT^A01|MSG001|P|2.4
PID|1|12345678|12345678^^^Hospital^MR||Smith^John^Q||19650315|M|||123 Oak St^^Springfield^IL^62701||5551234567

// Redacted HL7 message
MSH|^~\&|HIS|[FACILITY]|LAB|Lab|[DATETIME]||ADT^A01|[MSG_ID]|P|2.4
PID|1|[MRN]|[MRN]^^^[FACILITY]^MR||[NAME]||[DOB]|M|||[ADDRESS]||[PHONE]

// Original FHIR Patient resource
{
    "resourceType": "Patient",
    "id": "patient-123",
    "identifier": [{
        "system": "http://hospital.org/mrn",
        "value": "12345678"
    }],
    "name": [{
        "family": "Smith",
        "given": ["John", "Q"]
    }],
    "birthDate": "1965-03-15",
    "address": [{
        "line": ["123 Oak Street"],
        "city": "Springfield",
        "state": "IL",
        "postalCode": "62701"
    }]
}

// De-identified FHIR resource
{
    "resourceType": "Patient",
    "id": "[RESOURCE_ID]",
    "identifier": [{
        "system": "[SYSTEM]",
        "value": "[MRN]"
    }],
    "name": [{
        "family": "[FAMILY_NAME]",
        "given": ["[GIVEN_NAME]"]
    }],
    "birthDate": "1965",
    "address": [{
        "line": ["[ADDRESS]"],
        "city": "[CITY]",
        "state": "IL",
        "postalCode": "627"
    }]
}

Medical Record Redaction Request

POST /v1/redact
{
    "document": "PATIENT: John Smith  MRN: 12345678...",
    "profile": "hipaa_safe_harbor",
    "options": {
        "date_handling": "year_only",
        "age_threshold": 89,
        "zip_code_handling": "three_digit",
        "preserve_providers": false,
        "preserve_facilities": false
    }
}

// Response
{
    "redacted_document": "PATIENT: [NAME]  MRN: [MRN]...",
    "compliance": {
        "method": "safe_harbor",
        "identifiers_found": {
            "names": 3,
            "mrn": 1,
            "dates": 4,
            "addresses": 1,
            "phone_numbers": 1,
            "insurance_ids": 1
        },
        "all_identifiers_redacted": true
    },
    "audit_log": "https://api.redactionapi.com/audit/abc123"
}