<?xml version="1.0" encoding="UTF-8"?><CodeSystem xmlns="http://hl7.org/fhir"><id value="substance-target-organism"/><meta><lastUpdated value="2026-06-23T16:20:19.822+00:00"/></meta><text><status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem substance-target-organism</b></p><a name="substance-target-organism"> </a><a name="hcsubstance-target-organism"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/substance-target-organism</code> defines the following codes:</p><table class="codes"><tr><td style="white-space:nowrap"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style="white-space:nowrap">e-coli<a name="substance-target-organism-e-coli"> </a></td><td>Escherichia coli</td><td>Escherichia coli.</td></tr><tr><td style="white-space:nowrap">s-aureus<a name="substance-target-organism-s-aureus"> </a></td><td>Staphylococcus aureus</td><td>Staphylococcus aureus.</td></tr><tr><td style="white-space:nowrap">m-tuberculosis<a name="substance-target-organism-m-tuberculosis"> </a></td><td>Mycobacterium tuberculosis</td><td>Mycobacterium tuberculosis.</td></tr><tr><td style="white-space:nowrap">p-aeruginosa<a name="substance-target-organism-p-aeruginosa"> </a></td><td>Pseudomonas aeruginosa</td><td>Pseudomonas aeruginosa.</td></tr><tr><td style="white-space:nowrap">candida-albicans<a name="substance-target-organism-candida-albicans"> </a></td><td>Candida albicans</td><td>Candida albicans.</td></tr><tr><td style="white-space:nowrap">hiv<a name="substance-target-organism-hiv"> </a></td><td>HIV</td><td>Human Immunodeficiency Virus.</td></tr><tr><td style="white-space:nowrap">hbv<a name="substance-target-organism-hbv"> </a></td><td>HBV</td><td>Hepatitis B Virus.</td></tr><tr><td style="white-space:nowrap">hcv<a name="substance-target-organism-hcv"> </a></td><td>HCV</td><td>Hepatitis C Virus.</td></tr><tr><td style="white-space:nowrap">sars-cov-2<a name="substance-target-organism-sars-cov-2"> </a></td><td>SARS-CoV-2</td><td>Severe Acute Respiratory Syndrome Coronavirus 2.</td></tr><tr><td style="white-space:nowrap">p-falciparum<a name="substance-target-organism-p-falciparum"> </a></td><td>Plasmodium falciparum</td><td>Plasmodium falciparum.</td></tr></table></div></text><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"><valueCode value="brr"/></extension><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"><valueCode value="informative"/></extension><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm"><valueInteger value="1"/></extension><url value="http://hl7.org/fhir/substance-target-organism"/><version value="6.0.0-ballot4"/><name value="SubstanceTargetOrganismExample"/><title value="Substance Target Organism"/><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 specific organism that an anti-infective substance is targeted against."/><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-target-organism"/><content value="complete"/><concept><code value="e-coli"/><display value="Escherichia coli"/><definition value="Escherichia coli."/></concept><concept><code value="s-aureus"/><display value="Staphylococcus aureus"/><definition value="Staphylococcus aureus."/></concept><concept><code value="m-tuberculosis"/><display value="Mycobacterium tuberculosis"/><definition value="Mycobacterium tuberculosis."/></concept><concept><code value="p-aeruginosa"/><display value="Pseudomonas aeruginosa"/><definition value="Pseudomonas aeruginosa."/></concept><concept><code value="candida-albicans"/><display value="Candida albicans"/><definition value="Candida albicans."/></concept><concept><code value="hiv"/><display value="HIV"/><definition value="Human Immunodeficiency Virus."/></concept><concept><code value="hbv"/><display value="HBV"/><definition value="Hepatitis B Virus."/></concept><concept><code value="hcv"/><display value="HCV"/><definition value="Hepatitis C Virus."/></concept><concept><code value="sars-cov-2"/><display value="SARS-CoV-2"/><definition value="Severe Acute Respiratory Syndrome Coronavirus 2."/></concept><concept><code value="p-falciparum"/><display value="Plasmodium falciparum"/><definition value="Plasmodium falciparum."/></concept></CodeSystem>