Observation Reference Range Meaning Codes

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

Copyright Statement: This value set includes content from SNOMED CT, which is copyright © 2002+ International Health Terminology Standards Development Organisation (IHTSDO), and distributed by agreement between IHTSDO and HL7. Implementer use of SNOMED CT is not covered by this agreement.

This value set has an inline code system http://hl7.org/fhir/referencerange-meaning, which defines the following codes:

Lvl Code Display Definition
1 type Type General types of reference range.
2   normal Normal Range Based on 95th percentile for the relevant control population.
2   recommended Recommended Range The range that is recommended by a relevant professional body.
2   treatment Treatment Range The range at which treatment would/should be considered.
2   therapeutic Therapeutic Desired Level The optimal range for best therapeutic outcomes.
3     pre Pre Therapeutic Desired Level The optimal range for best therapeutic outcomes for a specimen taken immediately before administration.
3     post Post Therapeutic Desired Level The optimal range for best therapeutic outcomes for a specimen taken immediately after administration.
1 endocrine Endocrine Endocrine related states that change the expected value.
2   pre-puberty Pre-Puberty An expected range in an individual prior to puberty.
2   follicular Follicular Stage An expected range in an individual during the follicular stage of the cycle.
2   midcycle MidCycle An expected range in an individual during the follicular stage of the cycle.
2   luteal Luteal An expected range in an individual during the luteal stage of the cycle.
2   postmeopausal Post-Menopause An expected range in an individual post-menopause.

In addition, this value set includes codes from other code systems: