Health data demo contract

Used in health insurance
for healthcare

This is a simplified health data contract that shows how privacy implications of sensitive health data can be captured in a STRM data contract. We consider a patient's medical practice and city sufficiently broad to be not sensitive. Direct PII (like names) requires the highest purpose for decryption. Indirect PII such as cohort identifiers like (combinations of) medications could easily lead to identification but are indirect. Heart rates and blood pressures can lead to K=1 identification (even without a patient id), but in this example we want to retain the integrity between data points to be useful.

Event Contract reference

strm-demo/health-demo-contract/1.0.0

Schema reference

strm-demo/health-demo/1.0.4

Event contract overview

Type	Field	Value	Description
Key field	patient_id		Links events to the associated field for privacy processing.
PII field	diagnosis	2	needs consent
PII field	medication	2	needs consent
PII field	patient_address	3	needs consent
PII field	patient_id	1	needs consent
PII field	patient_name	3	needs consent
Validations	none		No validations applied

Serialization schema fields

Field	Description
patient_id	.
practice_id	.
patient_name	.
patient_address	.
patient_city	.
medical_bloodpressure	the current blood pressure described as SYSTOLIC / DIASTOLIC
medical_heartrate	the current heart rate in a whole number
diagnosis	the current diagnosis as text
medication	what (if any) medication is this patient using

Event contract

{
  "id": "604f57b7-d943-4912-8e98-a56342fbe8ae",
  "is_public": true,
  "key_field": "patient_id",
  "metadata": {
      "create_time": "2022-03-16T09:02:50Z",
      "description": "This is a simplified health data contract that shows how privacy implications of sensitive health data can be captured in a STRM data contract. We consider a patient's medical practice and city sufficiently broad to be not sensitive. Direct PII (like names) requires the highest purpose for decryption. Indirect PII such as cohort identifiers like (combinations of) medications could easily lead to identification but are indirect. Heart rates and blood pressures can lead to K=1 identification (even without a patient id), but in this example we want to retain the integrity between data points to be useful. ",
      "domains": [
          "health",
          "insurance"
      ],
      "icon_uri": "https://healthicons.org/icons/png/filled/devices/stethoscope@2x.png",
      "industries": [
          "healthcare"
      ],
      "title": "Health data demo contract"
  },
  "pii_fields": {
      "diagnosis": 2,
      "medication": 2,
      "patient_address": 3,
      "patient_id": 1,
      "patient_name": 3
  },
  "ref": {
      "handle": "strm-demo",
      "name": "health-demo-contract",
      "version": "1.0.0"
  },
  "schema_ref": {
      "handle": "strm-demo",
      "name": "health-demo",
      "version": "1.0.4"
  },
  "state": "ACTIVE"
}

Serialization schema

{
  "type": "record",
  "name": "HealthPracticeDemo",
  "namespace": "com.STRM",
  "fields": [
      {
          "name": "strmMeta",
          "type": {
              "type": "record",
              "name": "strmMeta",
              "namespace": "com.STRM.strmmeta",
              "fields": [
                  {
                      "name": "eventContractRef",
                      "type": "string"
                  },
                  {
                      "name": "nonce",
                      "type": [
                          "null",
                          "int"
                      ],
                      "default": null
                  },
                  {
                      "name": "timestamp",
                      "type": [
                          "null",
                          "long"
                      ],
                      "default": null
                  },
                  {
                      "name": "keyLink",
                      "type": [
                          "null",
                          "string"
                      ],
                      "default": null
                  },
                  {
                      "name": "billingId",
                      "type": [
                          "null",
                          "string"
                      ],
                      "default": null
                  },
                  {
                      "name": "consentLevels",
                      "type": {
                          "type": "array",
                          "items": "int"
                      }
                  }
              ]
          }
      },
      {
          "name": "patient_id",
          "type": [
              "null",
              "string"
          ],
          "default": null
      },
      {
          "name": "practice_id",
          "type": [
              "null",
              "string"
          ],
          "default": null
      },
      {
          "name": "patient_name",
          "type": [
              "null",
              "string"
          ],
          "default": null
      },
      {
          "name": "patient_address",
          "type": [
              "null",
              "string"
          ],
          "default": null
      },
      {
          "name": "patient_city",
          "type": [
              "null",
              "string"
          ],
          "default": null
      },
      {
          "name": "medical_bloodpressure",
          "type": [
              "null",
              "string"
          ],
          "doc": "the current blood pressure described as SYSTOLIC / DIASTOLIC",
          "default": null
      },
      {
          "name": "medical_heartrate",
          "type": [
              "null",
              "int"
          ],
          "doc": "the current heart rate in a whole number",
          "default": null
      },
      {
          "name": "diagnosis",
          "type": [
              "null",
              "string"
          ],
          "doc": "the current diagnosis as text",
          "default": null
      },
      {
          "name": "medication",
          "type": [
              "null",
              "string"
          ],
          "doc": "what (if any) medication is this patient using",
          "default": null
      }
  ]
}