# text.div
This code system http://hl7.org/fhir/observation-range-category defines the following codes:

Code | Display | Definition
reference | reference range | Reference (Normal) Range for Ordinal and Continuous Observations.
critical | critical range | Critical Range for Ordinal and Continuous Observations. Results outside this range are critical.
absolute | absolute range | Absolute Range for Ordinal and Continuous Observations. Results outside this range are not possible.

# description
Codes identifying the category of observation range.

# concept[].definition
Reference (Normal) Range for Ordinal and Continuous Observations.

# concept[].definition
Critical Range for Ordinal and Continuous Observations. Results outside this range are critical.

# concept[].definition
Absolute Range for Ordinal and Continuous Observations. Results outside this range are not possible.