HL7 Terminology (THO)
3.0.0 - Publication

This page is part of the HL7 Terminology (v3.0.0: Release) based on FHIR R4. The current version which supercedes this version is 5.2.0. For a full list of available versions, see the Directory of published versions

ValueSet: Observation Reference Range Meaning Codes


Defining URL:http://terminology.hl7.org/ValueSet/referencerange-meaning
Title:Observation Reference Range Meaning Codes
Status:Draft as of 2/24/20, 12:41 PM (Standards Status: Trial Use)

This value set defines a set of codes that can be used to indicate the meaning/use of a reference range for a particular target population.

Publisher:FHIR Project team
Committee:Orders and Observations
OID:2.16.840.1.113883.4.642.3.397 (for OID based terminology systems)
Source Resource:XML / JSON / Turtle


This value set is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)

Logical Definition (CLD)



This value set contains 13 concepts

Expansion based on Observation Reference Range Meaning Codes v0.1.0 (CodeSystem)

All codes in this table are from the system http://terminology.hl7.org/CodeSystem/referencerange-meaning

0typeTypeGeneral types of reference range.
1  normalNormal RangeValues expected for a normal member of the relevant control population being measured. Typically each results producer such as a laboratory has specific normal ranges and they are usually defined as within two standard deviations from the mean and account for 95.45% of this population.
1  recommendedRecommended RangeThe range that is recommended by a relevant professional body.
1  treatmentTreatment RangeThe range at which treatment would/should be considered.
1  therapeuticTherapeutic Desired LevelThe optimal range for best therapeutic outcomes.
2    prePre Therapeutic Desired LevelThe optimal range for best therapeutic outcomes for a specimen taken immediately before administration.
2    postPost Therapeutic Desired LevelThe optimal range for best therapeutic outcomes for a specimen taken immediately after administration.
0endocrineEndocrineEndocrine related states that change the expected value.
1  pre-pubertyPre-PubertyAn expected range in an individual prior to puberty.
1  follicularFollicular StageAn expected range in an individual during the follicular stage of the cycle.
1  midcycleMidCycleAn expected range in an individual during the midcycle stage of the cycle.
1  lutealLutealAn expected range in an individual during the luteal stage of the cycle.
1  postmenopausalPost-MenopauseAn expected range in an individual post-menopause.

Explanation of the columns that may appear on this page:

Level A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies
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)
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


2020-10-14reviseVocabulary WGGrahame GrieveReset Version after migration to UTG
2020-05-06reviseVocabulary WGTed KleinMigrated to the UTG maintenance environment and publishing tooling.