# text.div
Generated Narrative: CodeSystem evidence-variable-constraint

Profile: Shareable CodeSystem

This case-sensitive code system http://terminology.hl7.org/CodeSystem/evidence-variable-constraint defines the following codes:

Code | Display | Definition
alphanumeric-only | Alphanumeric Characters Only | String values that are restricted to only numbers and letters [A-Za-z0-9].
alphanumeric-space-only | Alphanumeric and Space Characters Only | String values that are restricted to only numbers, letters, and spaces [A-Za-z0-9\s].
range-zero-to-one | Range Zero to One | Numeric value between 0 and 1, inclusive.

# description
A rule or other expectation for data values.

# concept[].definition
String values that are restricted to only numbers and letters [A-Za-z0-9].

# concept[].definition
String values that are restricted to only numbers, letters, and spaces [A-Za-z0-9\s].

# concept[].definition
Numeric value between 0 and 1, inclusive.