This page is part of the FHIR Specification (v1.4.0: STU 3 Ballot 3). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions
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This is a value set defined by the FHIR project.
Summary
| Defining URL: | http://hl7.org/fhir/ValueSet/special-values |
| Name: | SpecialValues |
| Definition: | A set of generally useful codes defined so they can be included in value sets. |
| Committee: | FHIR Infrastructure Work Group |
| OID: | 2.16.840.1.113883.4.642.2.5 (for OID based terminology systems) |
| Source Resource | XML / JSON |
This value set is used in the following places:

This value set includes codes from the following code systems:

This expansion generated 31 Mar 2016
This value set contains 6 concepts
All codes from system http://hl7.org/fhir/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| withdrawn | Value Withdrawn | The value is no longer available.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. |
This value set includes codes from the following code systems:
See the full registry of value sets defined as part of FHIR.
Explanation of the columns that may appear on this page:
| Level | A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies |
| 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) |
| 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 |