Human body weight refers “to a person's mass or weight. Body weight is measured in kilograms … or pounds. Strictly speaking, body weight is the measurement of weight without items located on the person. Practically though, body weight is measured with clothes on, but without shoes or heavy accessories such as mobile phones and wallets and using manual or digital weighing scales. Excess or reduced body weight is regarded as an indicator of determining a person's health, with body volume measurement providing an extra dimension by calculating the distribution of body weight.” – Wikipedia.
This class represents the measurement (or “clinical observation”) of the patient’s Weight. This class re-defines the generic clinical Observation class to fix the observed characteristic to LOINC 3141-9 and to set the data type of the observation value to a Physical Quantity.

"Weight (in pounds).... Decimal precision is permissible." - PCORnet Common Data Model, Vital.WT

Attributes
«CS» Code	deviceTypeQualifier	This property contains a code that specifies additional detail about the means or technique used to ascertain the Observation. In the generic clinical Observation class, this code is not “bound” to a particular value set. In this class, the property is re-defined to a set of values that are appropriate to heart rate measurements. These values come from the SNOMED-CT coding system.
«CS» Code	method	Occasionally, the patient’s Weight cannot be measured directly, leading the clinician to estimate the Weight, or rely on the patient’s stated Weight. This property indicates how the patient’s Weight was determined.
«PQ» Quantity	value	This property contains the result, or value of the clinical Observation. In the generic clinical Observation class, the data type for this property can be anything. Weight is generally expressed in terms of kilograms or pounds. Therefore, this property has been re-defined to constrain the data type to be a Physical Quantity.

Attributes inherited from  FHIM::ClinicalObservation::ObservationStatement

basedOn,  bodySite,  category,  componentObservation,  dataAbsentReason,  dateTime,  dateTimeIssued,  deltaFlag,  description,  deviceInstance,  evaluationProcedure,  exceptionValue,  interpretationEvent,  method,  multimedia,  observed,  observedCharacteristic,  referenceRange,  reliability,  resultStatus,  specimen,  value,  derivedFrom,  hasMember,  partOf

Attributes inherited from  FHIM::Common::ClinicalStatement

clinicalDataSource,  contentVersion,  contextCode,  encounter,  note,  recordStatus,  relatedClinicalInformation,  sourceRecordType,  sourceSystem,  subjectGroup,  subjectOfInformation,  subjectOfRecord,  temporalContext,  topicCode,  cosigned,  recorded,  signed,  verified

Attributes inherited from  FHIM::Common::InformationEntry

identifier

 deviceTypeQualifier

Public «CS» Code deviceTypeQualifier

This property contains a code that specifies additional detail about the means or technique used to ascertain the Observation. In the generic clinical Observation class, this code is not “bound” to a particular value set. In this class, the property is re-defined to a set of values that are appropriate to heart rate measurements. These values come from the SNOMED-CT coding system.

Constraints:

Properties:

Aggregation	None
Alias
Association
Association End
Class	WeightObservation
Datatype
Default
Default Value
Is Composite	false
Is Derived	false
Is Derived Union	false
Is Leaf	false
Is Ordered	false
Is Read Only	false
Is Static	false
Is Unique	true
Keywords
Lower	0
Lower Value	(0)
Multiplicity	0..1
Name	deviceTypeQualifier
Name Expression
Namespace	WeightObservation
Opposite
Owner	WeightObservation
Owning Association
Owning Template Parameter
Qualified Name	FHIM::VitalSigns::Weight::WeightObservation::deviceTypeQualifier
Stereotype
Template Parameter
Type	«CS» Code
Upper	1
Upper Value	(1)
Visibility	Public

 method

Public «CS» Code method

Occasionally, the patient’s Weight cannot be measured directly, leading the clinician to estimate the Weight, or rely on the patient’s stated Weight. This property indicates how the patient’s Weight was determined.

Constraints:

Properties:

Aggregation	None
Alias
Association
Association End
Class	WeightObservation
Datatype
Default
Default Value
Is Composite	false
Is Derived	false
Is Derived Union	false
Is Leaf	false
Is Ordered	false
Is Read Only	false
Is Static	false
Is Unique	true
Keywords	redefine
Lower	0
Lower Value	(0)
Multiplicity	0..1
Name	method
Name Expression
Namespace	WeightObservation
Opposite
Owner	WeightObservation
Owning Association
Owning Template Parameter
Qualified Name	FHIM::VitalSigns::Weight::WeightObservation::method
Stereotype
Template Parameter
Type	«CS» Code
Upper	1
Upper Value	(1)
Visibility	Public

 value

Public «PQ» Quantity value

This property contains the result, or value of the clinical Observation. In the generic clinical Observation class, the data type for this property can be anything. Weight is generally expressed in terms of kilograms or pounds. Therefore, this property has been re-defined to constrain the data type to be a Physical Quantity.

Constraints:

Properties:

Aggregation	None
Alias
Association
Association End
Class	WeightObservation
Datatype
Default
Default Value
Is Composite	false
Is Derived	false
Is Derived Union	false
Is Leaf	false
Is Ordered	false
Is Read Only	false
Is Static	false
Is Unique	true
Keywords	redefine
Lower	1
Lower Value	(1)
Multiplicity	1
Name	value
Name Expression
Namespace	WeightObservation
Opposite
Owner	WeightObservation
Owning Association
Owning Template Parameter
Qualified Name	FHIM::VitalSigns::Weight::WeightObservation::value
Stereotype
Template Parameter
Type	«PQ» Quantity
Upper	1
Upper Value	(1)
Visibility	Public