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CQ - composite quantity with units

HL7 Component Table - CQ - composite quantity with units
Seq# Description Implement Flags Cardinality Length C.LEN Vocabulary Data Type
1 Quantity [0..1]     NM
2 Units [0..1]     0794 CWE

Components: <Quantity (NM)> & <Units (CWE)>

Subcomponents for Units (CWE): <Identifier (ST)> ^ <Text (ST)> ^ <Name of Coding System (ID)> ^ <Alternate Identifier (ST)> ^ <Alternate Text (ST)> ^ <Name of Alternate Coding System (ID)> ^ <Coding System Version ID (ST)> ^ <Alternate Coding System Version ID (ST)> ^ <Original Text (ST)> ^ <Second Alternate Identifier (ST)> ^ <Second Alternate Text (ST)> ^ <Name of Second Alternate Coding System (ID)> ^ <Second Alternate Coding System Version ID (ST)> ^ <Coding System OID (ST)> ^ <Value Set OID (ST)> ^ <Value Set Version ID (DTM)> ^ <Alternate Coding System OID (ST)> ^ <Alternate Value Set OID (ST)> ^ <Alternate Value Set Version ID (DTM)> ^ <Second Alternate Coding System OID (ST)> ^ <Second Alternate Value Set OID (ST)> ^ <Second Alternate Value Set Version ID (DTM)>

Note: CQ cannot be legally expressed when embedded within another data type. Its use is constrained to a segment field.


|123.7^kg|        kilograms is an ISO unit

|150^lb&&ANSI+|    weight in pounds is a customary US unit defined within ANSI+.

CQ-1: Quantity (NM)

Definition: This component specifies the numeric quantity or amount of an entity.

CQ-2: Units (CWE)

Definition: This component species the units in which the quantity is expressed. As of v2.7 the externally-defined Unified Code for Units of Measure (UCUM) case sensitive code is the required code for units of measure. Refer to the external table "Unified Code for Units of Measure" (UCUM) [] for valid values. Local codes may be transmitted in addition to UCUM codes.

Refer to user-defined Table 0794 - Units in Chaper 2C, Code Tables, for valid values.