<?xml version="1.0" encoding="UTF-8"?><CodeSystem xmlns="http://hl7.org/fhir"><id value="substance-representation-format"/><meta><lastUpdated value="2026-04-01T05:55:04.283+11:00"/></meta><text><status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem substance-representation-format</b></p><a name="substance-representation-format"> </a><a name="hcsubstance-representation-format"> </a><div style="display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%"><p style="margin-bottom: 0px">Last updated: 2021-01-05T10:01:24.148+11:00</p></div><p>This case-sensitive code system <code>http://hl7.org/fhir/substance-representation-format</code> defines the following codes:</p><table class="codes"><tr><td style="white-space:nowrap"><b>Code</b></td></tr><tr><td style="white-space:nowrap">InChI<a name="substance-representation-format-InChI"> </a></td></tr><tr><td style="white-space:nowrap">SMILES<a name="substance-representation-format-SMILES"> </a></td></tr><tr><td style="white-space:nowrap">MOLFILE<a name="substance-representation-format-MOLFILE"> </a></td></tr><tr><td style="white-space:nowrap">CDX<a name="substance-representation-format-CDX"> </a></td></tr><tr><td style="white-space:nowrap">SDF<a name="substance-representation-format-SDF"> </a></td></tr><tr><td style="white-space:nowrap">PDB<a name="substance-representation-format-PDB"> </a></td></tr><tr><td style="white-space:nowrap">mmCIF<a name="substance-representation-format-mmCIF"> </a></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-representation-format"/><identifier><system value="urn:ietf:rfc:3986"/><value value="urn:oid:2.16.840.1.113883.4.642.4.2081"/></identifier><version value="6.0.0-ballot4"/><name value="SubstanceRepresentationFormat"/><title value="Substance Representation Format"/><status value="active"/><experimental value="false"/><date value="2021-01-05T10:01:24+11:00"/><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="SubstanceRepresentationFormat"/><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-representation-format"/><content value="complete"/><concept><code value="InChI"/><display value="InChI"/></concept><concept><code value="SMILES"/><display value="SMILES"/></concept><concept><code value="MOLFILE"/><display value="MOLFILE"/></concept><concept><code value="CDX"/><display value="CDX"/></concept><concept><code value="SDF"/><display value="SDF"/></concept><concept><code value="PDB"/><display value="PDB"/></concept><concept><code value="mmCIF"/><display value="mmCIF"/></concept></CodeSystem>