mdatool.

Loading usage...

Settings
Verified Standard
v1.0.4-LATEST

reaction onset date

Architectural Definition

The symptom start date for a physiological response. Used to track temporal information related to reaction onset date. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for reaction management and reporting.

Schema Preview

application/json
{
  "entity": "reaction-onset-date",
  "domain": "healthcare",
  "metadata": {
    "displayName": "reaction onset date",
    "status": "STANDARDIZED",
    "version": "1.0.4",
    "isStandardized": true
  }
}
Standard
ISO-8601
Data Type
String/Obj
Steward
Arch Council
Verified
Feb 2026