Others titles

  • FHIR Sampled Data Datatype
  • Electronic Health Records Exchange Through FHIR


  • FHIR
  • HL7
  • Medical Terminology
  • Processes Data
  • Processes Information
  • Processes Documentation
  • Health Information Exchange
  • Electronic Health Records
  • FHIR Smart
  • Smart on FHIR

Sampled Data

Sampled Data is the data that comes from a series of measurements taken by a device, which may have upper and lower limits. The data type also supports more than one dimension in the data.

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A SampledData provides a concise way to handle the data produced by devices that sample a particular physical state at a high frequency. A typical use for this is for the output of an Electrocardiogram (ECG or EKG) device. The data type includes a series of raw decimal values (which are mostly simple integers), along with adjustments for scale and factor. These are interpreted such that:

original measured value[i] = SampledData.data[i] * SampledData.scaleFactor + SampledData.origin.value

The digits are a set of decimal values separated by a single space (Unicode character u20). In addition to decimal values, the special values “E” (error), “L” (below detection limit) and “U” (above detection limit) can also be used. If there is more than one dimension, the different dimensions are interlaced – all the data points for a particular time are represented together. SampledData is used in the ‘Observation’.

About this Dataset

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Last Modified




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Temporal Coverage


Spatial Coverage

United States


John Snow Labs; Health Level Seven International;

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FHIR, HL7, Medical Terminology, Processes Data, Processes Information, Processes Documentation, Health Information Exchange, Electronic Health Records, FHIR Smart, Smart on FHIR

Other Titles

FHIR Sampled Data Datatype, Electronic Health Records Exchange Through FHIR

Data Fields

Name Description Type Constraints
Concept_NameName of the concept in the FHIR structure.stringrequired : 1
Computer_Ready_NameA Computer-ready name (e.g. a token) that identifies the structure - suitable for code generation. Note that this name (and other names relevant for code generation, including element & slice names, codes etc) may collide with reserved words in the relevant target language, and code generators will need to handle this.string-
TypeThe type the structure describes.string-
Dollar_RefThe "$ref" string value contains a Uniform Resource Identifier (URI) which identifies the location of the JSON value being referenced.string-
DescriptionA free text natural language description of the structure and its use.string-
ItemsThe value of the keyword should be an object or an array of objects. If the keyword value is an object, then for the data array to be valid each item of the array should be valid according to the schema in this value.string-
RequiredThe value of the keyword should be an array of unique strings. The data object to be valid should contain all properties with names equal to the elements in the keyword value.string-

Data Preview

Concept NameComputer Ready NameTypeDollar RefDescriptionItemsRequired
SampledDataid#/definitions/stringUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
SampledDataextensionarrayMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension
SampledDataorigin#/definitions/QuantityThe base quantity that a measured value of zero represents. In addition this provides the units of the entire measurement series.
SampledDataperiod#/definitions/decimalThe length of time between sampling times measured in milliseconds.
SampledData_period#/definitions/ElementExtensions for period
SampledDatafactor#/definitions/decimalA correction factor that is applied to the sampled data points before they are added to the origin.
SampledData_factor#/definitions/ElementExtensions for factor
SampledDatalowerLimit#/definitions/decimalThe lower limit of detection of the measured points. This is needed if any of the data points have the value "L" (lower than detection limit).
SampledData_lowerLimit#/definitions/ElementExtensions for lowerLimit
SampledDataupperLimit#/definitions/decimalThe upper limit of detection of the measured points. This is needed if any of the data points have the value "U" (higher than detection limit).