Clinical Genomics Resource Incubator
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Clinical Genomics Resource Incubator, published by HL7 International / Clinical Genomics. This guide is not an authorized publication; it is the continuous build for version 0.1.0-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/cg-incubator/ and changes regularly. See the Directory of published versions

CodeSystem: Molecular Definition Molecule Type CodeSystem (Experimental)

Official URL: http://hl7.org/fhir/uv/cg-incubator/CodeSystem/moleculardefinition-moleculetype Version: 0.1.0-ci-build
Standards status: Informative Draft as of 2026-03-23 Maturity Level: 0 Computable Name: MolecularDefinitionMoleculeType
Other Identifiers: OID:2.16.840.1.113883.4.642.4.3001

The broad physical class of molecule represented by a MolecularDefinition resource instance: DNA, RNA, or amino acid (polypeptide). Codes are intentionally limited to top-level molecule classes to support consistent searching and profiling across systems. For finer-grained classification, use the type element bound to MolecularDefinitionType.

This Code system is referenced in the definition of the following value sets:

Last updated: 2026-03-23 00:00:00+0000

Profile: Shareable CodeSystem

This case-sensitive code system http://hl7.org/fhir/uv/cg-incubator/CodeSystem/moleculardefinition-moleculetype defines the following codes:

CodeDisplayDefinition
dna DNA sequence DNA sequence (assumed double stranded, written as single stranded by convention).
rna RNA sequence RNA sequence (assumed single stranded, written as single stranded by convention); may use cDNA or RNA encoding for T/U.
aa Amino acid sequence Amino acid (polypeptide) sequence.

Description of the above table(s).