HL7.TERMINOLOGY\ActControlVariable

HL7 Terminology (THO)
5.0.0 - Publication International flag

This page is part of the HL7 Terminology (v5.0.0: Release) based on FHIR R4. The current version which supercedes this version is 5.2.0. For a full list of available versions, see the Directory of published versions

ValueSet: ActControlVariable

Official URL: http://terminology.hl7.org/ValueSet/v3-ActControlVariable		Version: 2.0.0
Active as of 2014-03-26	Computable Name: ActControlVariable
Other Identifiers: : urn:oid:2.16.840.1.113883.1.11.16857

An observation form that determines parameters or attributes of an Act. Examples are the settings of a ventilator machine as parameters of a ventilator treatment act; the controls on dillution factors of a chemical analyzer as a parameter of a laboratory observation act; the settings of a physiologic measurement assembly (e.g., time skew) or the position of the body while measuring blood pressure.

Control variables are forms of observations because just as with clinical observations, the Observation.code determines the parameter and the Observation.value assigns the value. While control variables sometimes can be observed (by noting the control settings or an actually measured feedback loop) they are not primary observations, in the sense that a control variable without a primary act is of no use (e.g., it makes no sense to record a blood pressure position without recording a blood pressure, whereas it does make sense to record a systolic blood pressure without a diastolic blood pressure).

References

This value set is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)

Logical Definition (CLD)

This value set includes codes based on the following rules:

Include codes from http://terminology.hl7.org/CodeSystem/v3-ActCode where concept is-a _ActControlVariable

This value set excludes codes based on the following rules:

Exclude these codes as defined in http://terminology.hl7.org/CodeSystem/v3-ActCode

Code	Display	Definition
_ActControlVariable	ActControlVariable	An observation form that determines parameters or attributes of an Act. Examples are the settings of a ventilator machine as parameters of a ventilator treatment act; the controls on dillution factors of a chemical analyzer as a parameter of a laboratory observation act; the settings of a physiologic measurement assembly (e.g., time skew) or the position of the body while measuring blood pressure. Control variables are forms of observations because just as with clinical observations, the Observation.code determines the parameter and the Observation.value assigns the value. While control variables sometimes can be observed (by noting the control settings or an actually measured feedback loop) they are not primary observations, in the sense that a control variable without a primary act is of no use (e.g., it makes no sense to record a blood pressure position without recording a blood pressure, whereas it does make sense to record a systolic blood pressure without a diastolic blood pressure).

Expansion

This value set contains 3 concepts

Expansion based on ActCode v7.0.0 (CodeSystem)

Code	System	Display	Definition
AUTO	http://terminology.hl7.org/CodeSystem/v3-ActCode	auto-repeat permission	Specifies whether or not automatic repeat testing is to be initiated on specimens.
ENDC	http://terminology.hl7.org/CodeSystem/v3-ActCode	endogenous content	A baseline value for the measured test that is inherently contained in the diluent. In the calculation of the actual result for the measured test, this baseline value is normally considered.
REFLEX	http://terminology.hl7.org/CodeSystem/v3-ActCode	reflex permission	Specifies whether or not further testing may be automatically or manually initiated on specimens.
_ECGControlVariable	http://terminology.hl7.org/CodeSystem/v3-ActCode	ECGControlVariable

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

System

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

History

Date

Action

Author

Custodian

Comment

2022-10-18

revise