HL7 Terminology
2.0.0 - Publication

This page is part of the HL7 Terminology (v2.0.0: 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

CodeSystem: Observation Reference Range Meaning Codes


Defining URL:http://terminology.hl7.org/CodeSystem/referencerange-meaning
Title:Observation Reference Range Meaning Codes
Status:Draft as of 2020-11-07T09:27:49+11:00

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
Content:Complete: All the concepts defined by the code system are included in the code system resource
OID:2.16.840.1.113883.4.642.1.1124 (for OID based terminology systems)
Value Set:http://terminology.hl7.org/ValueSet/referencerange-meaning ( is the value set for all codes in this code system)
Source Resource:XML / JSON / Turtle

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


abstractTrue if an element is considered 'abstract' - in otherwords, the code is not for use as a real conceptboolean

This code system http://terminology.hl7.org/CodeSystem/referencerange-meaning defines the following codes:

1type TypeGeneral types of reference range.
2  normal Normal 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.
2  recommended Recommended RangeThe range that is recommended by a relevant professional body.
2  treatment Treatment RangeThe range at which treatment would/should be considered.
2  therapeutic Therapeutic Desired LevelThe optimal range for best therapeutic outcomes.
3    pre Pre Therapeutic Desired LevelThe optimal range for best therapeutic outcomes for a specimen taken immediately before administration.
3    post Post Therapeutic Desired LevelThe optimal range for best therapeutic outcomes for a specimen taken immediately after administration.
1endocrine EndocrineEndocrine related states that change the expected value.
2  pre-puberty Pre-PubertyAn expected range in an individual prior to puberty.
2  follicular Follicular StageAn expected range in an individual during the follicular stage of the cycle.
2  midcycle MidCycleAn expected range in an individual during the midcycle stage of the cycle.
2  luteal LutealAn expected range in an individual during the luteal stage of the cycle.
2  postmenopausal Post-MenopauseAn expected range in an individual post-menopause.


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