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The chronicity extension is used in FHIR Condition resources to specify whether a medical condition is chronic.

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Properties

Example extension: 
{
  "url": "http://hl7.org/fhir/StructureDefinition/condition-related",
  "valueCoding": {
    "code": "C",
    "display": "Chronic",
    "system": "https://public.metriport.com/fhir/StructureDefinition/condition-chronicity.json"
  }
}
​
url
string
required
The URL of this extension’s JSON structure specification.
​
valueCoding
object
required
Contains the chronicity classification of the condition.
​
valueCoding.code
string
required
The code indicating chronicity status. Currently supports:
  • “C” for Chronic
  • “NC” for Not-Chronic
  • “U” for Unknown
​
valueCoding.display
string
required
The human-readable display text for the chronicity status.
​
valueCoding.system
string
required
The system that defines the chronicity codes.