Release 4

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4.4.1.520 Value Set http://hl7.org/fhir/ValueSet/special-values

FHIR Infrastructure

Work Group

Maturity Level: 0

Informative

Use Context: Any

This is a value set defined by the FHIR project.

Summary

Defining URL:

http://hl7.org/fhir/ValueSet/special-values

Version:

4.0.1

Name:

SpecialValues

Title:

SpecialValues

Definition:

A set of generally useful codes defined so they can be included in value sets.

Committee:

FHIR Infrastructure

Work Group

OID:

2.16.840.1.113883.4.642.3.9 (for OID based terminology systems)

Source Resource

XML / JSON

This value set is used in the following places:

CodeSystem: This value set is the designated 'entire code system' value set for SpecialValues
This value set is used implicitly when searching boolean values

4.4.1.520.1 Content Logical Definition

This value set includes codes from the following code systems:

Include all codes defined in http://terminology.hl7.org/CodeSystem/special-values

4.4.1.520.2 Expansion

This expansion generated 21 Jan 2021

This value set contains 6 concepts

Expansion based on http://terminology.hl7.org/CodeSystem/special-values version 4.0.1

All codes from system http://terminology.hl7.org/CodeSystem/special-values

Code	Display	Definition
true	true	Boolean true.
false	false	Boolean false.
trace	Trace Amount Detected	The content is greater than zero, but too small to be quantified.
sufficient	Sufficient Quantity	The specific quantity is not known, but is known to be non-zero and is not specified because it makes up the bulk of the material.
withdrawn	Value Withdrawn	The value is no longer available.
nil-known	Nil Known	The are no known applicable values in this context.

See the full registry of value sets defined as part of FHIR.

Explanation of the columns that may appear on this page:

Lvl

A few code lists that FHIR defines are hierarchical - each code is assigned a level. For value sets, levels are mostly used to organize codes for user convenience, but may follow code system hierarchy - see Code System for further information

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). If the code is in italics, this indicates that the code is not selectable ('Abstract')

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