<status value="active"/> <experimental value="true"/> <date value="2026-06-23"/> <publisher value="HL7 (FHIR Project)"/> <contact> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> <telecom> <system value="email"/> <value value="fhir@lists.hl7.org"/> </telecom> </contact> <description value="The kind of interaction between a substance and its target, e.g. binding, inhibition, agonism."/> <jurisdiction> <coding> <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/> <code value="001"/> <display value="World"/> </coding> </jurisdiction> <caseSensitive value="true"/> <valueSet value="http://hl7.org/fhir/ValueSet/substance-interaction-type"/> <content value="complete"/> <concept> <code value="binding"/> <display value="Binding"/> <definition value="The substance binds to its target."/> </concept> <concept> <code value="inhibition"/> <display value="Inhibition"/> <definition value="The substance inhibits the activity of its target."/> </concept> <concept> <code value="activation"/> <display value="Activation"/> <definition value="The substance activates its target."/> </concept> <concept> <code value="agonist"/> <display value="Agonist"/> <definition value="The substance acts as an agonist of its target."/> </concept> <concept> <code value="antagonist"/> <display value="Antagonist"/> <definition value="The substance acts as an antagonist of its target."/> </concept> <concept> <code value="substrate"/> <display value="Substrate"/> <definition value="The substance is a substrate of its target."/> </concept> <concept> <code value="allosteric-modulator"/> <display value="Allosteric modulator"/> <definition value="The substance acts as an allosteric modulator of its target."/> </concept> </CodeSystem>

Generated Narrative: CodeSystem substance-interaction-type

This case-sensitive code system http://hl7.org/fhir/substance-interaction-type defines the following codes:

Code	Display	Definition
binding	Binding	The substance binds to its target.
inhibition	Inhibition	The substance inhibits the activity of its target.
activation	Activation	The substance activates its target.
agonist	Agonist	The substance acts as an agonist of its target.
antagonist	Antagonist	The substance acts as an antagonist of its target.
substrate	Substrate	The substance is a substrate of its target.
allosteric-modulator	Allosteric modulator	The substance acts as an allosteric modulator of its target.