CID 9000 Physical Quantity Descriptors
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## CID 9000 Physical Quantity Descriptors

Type:

  Extensible

Version:

  20141110

Table CID 9000. Physical Unit Descriptors

Coding Scheme Designator | Code Value | Code Meaning
--- | --- | ---
SRT | G-C1C6 | Quantity
DCM | 121401 | Derivation
SRT | G-C036 | Measurement Method

### Note

The concept (G-C1C6, SRT, "Quantity"), lacking a formal definition in SNOMED, is assumed in this usage to be synonymous with the concept defined for "quantity" in Joint Committee for Guides in Metrology (JCGM), International Vocabulary of Metrology, Basic and General Concepts and Associated Terms (http://www.bipm.org/utils/common/documents/jcgm/JCGM_200_2012.pdf); the definition is "property of a phenomenon, body, or substance, where the property has a magnitude that can be expressed as a number and a reference". That document further distinguishes a "physical quantity", "chemical quantity", and "biological quantity", though no such distinction is implied here, and "quantity" is assumed to be all inclusive.

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