{
  "specification_version": "3.4.0",
  "source_document_revision": "AHj4eMT9yK21YUzFwGGh-vnHaxeOM8sbBtiC8OSfCm71Y1VYtWxOuiy2SG3GJI-8WRSfEwjhtEaCMBLoCWf40ZnyE823r9u8RkNjxBh2Qg",
  "table": "Table 2: Approved matching combinations and conservative collision estimates (Category 1)",
  "columns": [
    "ID",
    "Approved field combination",
    "P(collision), exact",
    "P(collision), fuzzy"
  ],
  "rows": [
    {
      "ID": "01",
      "Approved field combination": "First Name* + Last Name* + DOB* + Street Line*",
      "P(collision), exact": "3e-13",
      "P(collision), fuzzy": "9e-13"
    },
    {
      "ID": "02",
      "Approved field combination": "First Name + Last Name* + DOB* + Phone Number",
      "P(collision), exact": "1e-14",
      "P(collision), fuzzy": "2e-14"
    },
    {
      "ID": "03",
      "Approved field combination": "First Name* + Last Name* + DOB* + Email Address",
      "P(collision), exact": "1e-14",
      "P(collision), fuzzy": "3e-14"
    },
    {
      "ID": "04",
      "Approved field combination": "First Name* + Last Name + DOB + SSN Last 4",
      "P(collision), exact": "1e-12",
      "P(collision), fuzzy": "2e-12"
    },
    {
      "ID": "05",
      "Approved field combination": "First Name + Last Name* + DOB + SSN Last 4",
      "P(collision), exact": "1e-12",
      "P(collision), fuzzy": "2e-12"
    },
    {
      "ID": "06",
      "Approved field combination": "First Name* + Last Name + DOB + ITIN Last 4",
      "P(collision), exact": "1e-12",
      "P(collision), fuzzy": "2e-12"
    },
    {
      "ID": "07",
      "Approved field combination": "First Name + Last Name* + DOB + ITIN Last 4",
      "P(collision), exact": "1e-12",
      "P(collision), fuzzy": "2e-12"
    },
    {
      "ID": "08",
      "Approved field combination": "First Name + DOB + MBI",
      "P(collision), exact": "2e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "09",
      "Approved field combination": "First Name + DOB + Legal ID",
      "P(collision), exact": "2e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "10",
      "Approved field combination": "Last Name* + DOB* + Legal ID",
      "P(collision), exact": "5e-13",
      "P(collision), fuzzy": "1e-12"
    },
    {
      "ID": "11",
      "Approved field combination": "First Name + DOB + Phone Number",
      "P(collision), exact": "2e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "12",
      "Approved field combination": "First Name + DOB + Email Address",
      "P(collision), exact": "2e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "13",
      "Approved field combination": "First Name + Phone Number + SSN Last 4",
      "P(collision), exact": "2e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "14",
      "Approved field combination": "First Name + Phone Number + ITIN Last 4",
      "P(collision), exact": "2e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "15",
      "Approved field combination": "First Name + Email Address + SSN Last 4",
      "P(collision), exact": "2e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "16",
      "Approved field combination": "First Name + Email Address + ITIN Last 4",
      "P(collision), exact": "2e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "17",
      "Approved field combination": "Phone Number + MBI",
      "P(collision), exact": "1e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "18",
      "Approved field combination": "Phone Number + Legal ID (w/issuing-authority namespace)",
      "P(collision), exact": "1e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "19",
      "Approved field combination": "Email Address + MBI",
      "P(collision), exact": "1e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "20",
      "Approved field combination": "Email Address + Legal ID (w/issuing-authority namespace)",
      "P(collision), exact": "1e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "21",
      "Approved field combination": "Legal ID + MBI",
      "P(collision), exact": "1e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "22",
      "Approved field combination": "Namespace bound unique identifiers (e.g. EMPI, FHIR Patient Identifier, CSP UUID, etc)",
      "P(collision), exact": "≈0",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "23",
      "Approved field combination": "First Name + DOB + Member ID (w/ Payer namespace)",
      "P(collision), exact": "2e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "24",
      "Approved field combination": "Last Name* + DOB* + Member ID (w/ Payer namespace)",
      "P(collision), exact": "5e-13",
      "P(collision), fuzzy": "1e-12"
    },
    {
      "ID": "25",
      "Approved field combination": "Phone Number + Member ID (w/ Payer namespace)",
      "P(collision), exact": "1e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "26",
      "Approved field combination": "Email Address + Member ID (w/ Payer namespace)",
      "P(collision), exact": "1e-12",
      "P(collision), fuzzy": ""
    },
    {
      "ID": "27",
      "Approved field combination": "First Name* + Last Name + DOB + Subscriber ID (w/ Payer namespace)",
      "P(collision), exact": "1e-12",
      "P(collision), fuzzy": "2e-12"
    },
    {
      "ID": "28",
      "Approved field combination": "First Name + Last Name* + DOB + Subscriber ID (w/ Payer namespace)",
      "P(collision), exact": "1e-12",
      "P(collision), fuzzy": "2e-12"
    },
    {
      "ID": "29",
      "Approved field combination": "First Name* + Last Name* + Phone Number + ZIP",
      "P(collision), exact": "3e-14",
      "P(collision), fuzzy": "9e-14"
    },
    {
      "ID": "30",
      "Approved field combination": "Last Name* + DOB + Phone Number",
      "P(collision), exact": "5e-13",
      "P(collision), fuzzy": "1e-12"
    }
  ]
}