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Using Codes Code Systems Value Sets Concept Maps Identifier Systems

4.3.14.331 4.3.2.72 Code System CodeSystem http://hl7.org/fhir/allergy-intolerance-criticality

  Maturity Level : 3
Responsible Owner: Patient Care icon Work Group Trial Use Normative Use Context : Any Country: World
This is a code system defined by the FHIR project. Summary
  • Defining URL: Narrative http://hl7.org/fhir/allergy-intolerance-criticality
  • XML Version:
  • 4.0.1 JSON
  • Name: TTL AllergyIntoleranceCriticality
Committee:
Official URL : Title: http://hl7.org/fhir/allergy-intolerance-criticality AllergyIntoleranceCriticality Definition: Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance. Version : 6.0.0-ballot3
active as of 2021-01-04 Patient Care Computable Name : AllergyIntoleranceCriticality Work Group
OID: 2.16.840.1.113883.4.642.4.130 (for OID based terminology systems) Flags : CaseSensitive, Complete. All codes ValueSet: Allergy Intolerance Criticality Source Resource XML / JSON OID : 2.16.840.1.113883.4.642.4.130

This Code system is used in the following FHIR core-defined or referenced value sets:

(Estimate

4.3.2.72.1 Definition

Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance.) substance.

4.3.14.331.1 4.3.2.72.2 Content

4.3.14.331.2 AllergyIntoleranceCriticality

Generated Narrative: CodeSystem allergy-intolerance-criticality

Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance.

Last updated: 2025-11-17T19:23:40.261Z

This case-sensitive code system http://hl7.org/fhir/allergy-intolerance-criticality defines the following codes:

Code Display Definition Copy
low Low Risk Worst case result of a future exposure is not assessed to be life-threatening or having high potential for organ system failure. btn   btn
high High Risk Worst case result of a future exposure is assessed to be life-threatening or having high potential for organ system failure. btn   btn
unable-to-assess Unable to Assess Risk Unable to assess the worst case result of a future exposure. btn   btn

 

See the full registry of code systems defined as part of FHIR.

Explanation of the columns that may appear on this page:

Level A few code lists that FHIR defines are hierarchical - each code is assigned a level. See Code System for further information.
Source The source of the definition of the code (when the value set draws in codes defined elsewhere)
Code The code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')
Display The display (used in the display element of a Coding ). If there is no display, implementers should not simply display the code, but map the concept into their application
Definition An explanation of the meaning of the concept
Comments Additional notes about how to use the code