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Using Codes Code Systems Value Sets Concept Maps Identifier Systems

4.3.1.383 4.4.1.562 Value Set ValueSet http://hl7.org/fhir/ValueSet/observation-codes

  Maturity Level : 1

Patient Care Responsible Owner: Orders and Observations Work Group

Informative

Use Context : Not Intended for Production use Country: World

This is a value set defined by the FHIR project. Summary

• Defining URL: Narrative http://hl7.org/fhir/ValueSet/observation-codes
• XML Name:
• LOINC Codes JSON
• Definition: TTL This value set includes all LOINC codes

Copyright:

Official URL : Committee: http://hl7.org/fhir/ValueSet/observation-codes Orders and Observations Work Group				OID: 2.16.840.1.113883.4.642.3.383 (for OID based terminology systems) Version : 6.0.0-ballot3
active as of 2025-12-17				This content from LOINC® is copyright © 1995 Regenstrief Institute, Inc. and the LOINC Committee, and available at no cost under the license at http://loinc.org/terms-of-use. Computable Name : LOINCCodes
Source Resource Flags :				XML / JSON OID : 2.16.840.1.113883.4.642.3.396

This value set is used in the following places:

• Resource: Goal.target.measure ( (CodeableConcept / Example )
• Observation.code Resource: DeviceAlert.derivedFrom.component ( (Coding / Example )
• Observation.component.code Resource: PlanDefinition.goal.target.measure ( (CodeableConcept / Example )
StructureDefinition DeviceMetricObservation: Observation.code (( Example )) StructureDefinition DeviceMetricObservation: Observation.component.code (( Example )) StructureDefinition Observation-Genetics: Observation.code (( Example )) StructureDefinition Observation-Genetics: Observation.component.code (( Example )) StructureDefinition Cholesterol: Observation.code (( Example ))

StructureDefinition Cholesterol: Observation.component.code (( Example ))

StructureDefinition Triglyceride: Observation.code (( Example )) 4.4.1.562.1 Definition StructureDefinition Triglyceride: Observation.component.code (( Example )) PlanDefinition.goal.target.measure ( Example ) ElementDefinition.code ( Example )

This value set includes all LOINC codes

4.3.1.383.1 4.4.1.562.2 Content Logical Definition

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4.3.1.383.2 4.4.1.562.3 Expansion

This expansion generated 19 Apr 2017 17 Dec 2025

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See the full registry of value sets defined as part of FHIR.

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Explanation of the columns that may appear on this page:

Level Lvl	A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes For value sets, levels are under other codes, and imply that the mostly used to organize codes for user convenience, but may follow code they are under also applies system hierarchy - 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