Personal Health Records, published by HL7 International / Patient Empowerment. This guide is not an authorized publication; it is the continuous build for version 1.0.0-ballot2 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/personal-health-record-format-ig/ and changes regularly. See the Directory of published versions

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: Observation Activity Codes

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{
  "resourceType" : "ValueSet",
  "id" : "observation-activity-codes",
  "language" : "en",
  "text" : {
    "status" : "extensions",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: ValueSet observation-activity-codes</b></p><a name=\"observation-activity-codes\"> </a><a name=\"hcobservation-activity-codes\"> </a><ul><li>Include these codes as defined in <a href=\"CodeSystem-observation-pghd-codes.html\"><code>http://hl7.org/fhir/uv/phr/CodeSystem/observation-pghd-codes</code></a><span title=\"Version is not explicitly stated, which means it is fixed to the version provided in this specification\"> version &#x1F4E6;1.0.0-ballot2</span><table class=\"none\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-stepCount\">stepCount</a></td><td style=\"color: #cccccc\">Step count</td><td>A quantity sample type that measures the number of steps the user has taken.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-distanceWalkingRunning\">distanceWalkingRunning</a></td><td style=\"color: #cccccc\">Distance walking running</td><td>A quantity sample type that measures the distance the user has moved by walking or running.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-runningGroundContactTime\">runningGroundContactTime</a></td><td style=\"color: #cccccc\">Running ground contact time</td><td>A quantity sample type that measures the amount of time the runner's foot is in contact with the ground while running.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-runningPower\">runningPower</a></td><td style=\"color: #cccccc\">Running power</td><td>A quantity sample type that measures the rate of work required for the runner to maintain their speed.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-runningSpeed\">runningSpeed</a></td><td style=\"color: #cccccc\">Running speed</td><td>A quantity sample type that measures the runner's speed.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-runningStrideLength\">runningStrideLength</a></td><td style=\"color: #cccccc\">Running stride length</td><td>A quantity sample type that measures the distance covered by a single step while running.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-runningVerticalOscillation\">runningVerticalOscillation</a></td><td style=\"color: #cccccc\">Running vertical oscillation</td><td>A quantity sample type measuring pelvis vertical range of motion during a single running stride.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-distanceCycling\">distanceCycling</a></td><td style=\"color: #cccccc\">Distance cycling</td><td>A quantity sample type that measures the distance the user has moved by cycling.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-pushCount\">pushCount</a></td><td style=\"color: #cccccc\">Push count</td><td>A quantity sample type that measures the number of pushes that the user has performed while using a wheelchair.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-distanceWheelchair\">distanceWheelchair</a></td><td style=\"color: #cccccc\">Distance wheelchair</td><td>A quantity sample type that measures the distance the user has moved using a wheelchair.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-swimmingStrokeCount\">swimmingStrokeCount</a></td><td style=\"color: #cccccc\">Swimming stroke count</td><td>A quantity sample type that measures the number of strokes performed while swimming.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-distanceSwimming\">distanceSwimming</a></td><td style=\"color: #cccccc\">Distance swimming</td><td>A quantity sample type that measures the distance the user has moved while swimming.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-distanceDownhillSnowSports\">distanceDownhillSnowSports</a></td><td style=\"color: #cccccc\">Distance downhill snow sports</td><td>A quantity sample type that measures the distance the user has traveled while skiing or snowboarding.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-basalEnergyBurned\">basalEnergyBurned</a></td><td style=\"color: #cccccc\">Basal energyBurned</td><td>A quantity sample type that measures the resting energy burned by the user.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-activeEnergyBurned\">activeEnergyBurned</a></td><td style=\"color: #cccccc\">Active energy burned</td><td>A quantity sample type that measures the amount of active energy the user has burned.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-totalEnergyBurned\">totalEnergyBurned</a></td><td style=\"color: #cccccc\">Total energy burned</td><td>Captures the user's steps cadence. Each record represents a series of measurements.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-flightsClimbed\">flightsClimbed</a></td><td style=\"color: #cccccc\">Flights climbed</td><td>A quantity sample type that measures the number flights of stairs that the user has climbed.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-nikeFuel\">nikeFuel</a></td><td style=\"color: #cccccc\">NikeFuel</td><td>A quantity sample type that measures the number of NikeFuel points the user has earned.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-appleExerciseTime\">appleExerciseTime</a></td><td style=\"color: #cccccc\">Apple exercise time</td><td>A quantity sample type that measures the amount of time the user spent exercising.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-appleMoveTime\">appleMoveTime</a></td><td style=\"color: #cccccc\">Apple move time</td><td>A quantity sample type that measures the amount of time the user has spent performing activities that involve full-body movements during the specified day.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-appleStandTime\">appleStandTime</a></td><td style=\"color: #cccccc\">Apple stand time</td><td>A quantity sample type that measures the amount of time the user has spent standing.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-vo2Max\">vo2Max</a></td><td style=\"color: #cccccc\">VO2 max</td><td>A quantity sample that measures the maximal oxygen consumption during exercise.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-lowCardioFitnessEvent\">lowCardioFitnessEvent</a></td><td style=\"color: #cccccc\">Low cardio fitness event</td><td>An event that indicates the user's VO2 max values consistently fall below a particular aerobic fitness threshold.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-appleStandHour\">appleStandHour</a></td><td style=\"color: #cccccc\">Apple stand hour</td><td>A category sample type that counts the number of hours in the day during which the user has stood and moved for at least one minute per hour.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-cyclingCadence\">cyclingCadence</a></td><td style=\"color: #cccccc\">Cycling cadence</td><td>Captures the user's cycling pedaling cadence. Each record represents a series of measurements.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-cyclingFunctionalThresholdPower\">cyclingFunctionalThresholdPower</a></td><td style=\"color: #cccccc\">Cycling functional threshold power</td><td>A quantity sample type that measures the highest average power output the user can maintain for an hour.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-cyclingPower\">cyclingPower</a></td><td style=\"color: #cccccc\">Cycling power</td><td>A quantity sample type that measures power output by the user while cycling.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-cyclingSpeed\">cyclingSpeed</a></td><td style=\"color: #cccccc\">Cycling speed</td><td>A quantity sample type measuring the user's speed while cycling.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-distance\">distance</a></td><td style=\"color: #cccccc\">Distance</td><td>Captures distance travelled by the user since the last reading.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-elevationGained\">elevationGained</a></td><td style=\"color: #cccccc\">Elevation gained</td><td>Captures the elevation gained by the user since the last reading.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-physicalEffort\">physicalEffort</a></td><td style=\"color: #cccccc\">Physical effort</td><td>A quantity sample type that records an estimate of the energy the user using.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-power\">power</a></td><td style=\"color: #cccccc\">Power</td><td>Captures the power generated by the user, e.g. during rowing with a power meter. Each record represents a series of measurements.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-stepsCadence\">stepsCadence</a></td><td style=\"color: #cccccc\">Steps cadence</td><td>Captures the user's steps cadence. Each record represents a series of measurements.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-speed\">speed</a></td><td style=\"color: #cccccc\">Speed</td><td>Captures the user's speed, e.g. during running. Each record represents a series of measurements.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-pace\">pace</a></td><td style=\"color: #cccccc\">Pace</td><td>Pace at a specific point in time. Will be 0 if the user stops moving, otherwise the value will be in milliseconds/kilometer.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-moderateActivity\">moderateActivity</a></td><td style=\"color: #cccccc\">Moderate activity</td><td>Represents moderate (3.0-5.9 MET) activity.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-vigorousActivity\">vigorousActivity</a></td><td style=\"color: #cccccc\">Vigorous activity</td><td>Represents vigorous (6.0- MET) activity.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-moderateToVigorousActivity\">moderateToVigorousActivity</a></td><td style=\"color: #cccccc\">Moderate to vigorous activity</td><td>Weekly moderate to vigorous physical activity in minutes.</td></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-met\">met</a></td><td style=\"color: #cccccc\">Met</td><td/></tr><tr><td><a href=\"CodeSystem-observation-pghd-codes.html#observation-pghd-codes-metByStandardRmr\">metByStandardRmr</a></td><td style=\"color: #cccccc\">Met by standard RMR</td><td>Metabolic equivalent of task (MET) calculated based on either measured, estimated or reported exercise metabolic rate and the standard resting metabolic rate (RMR).</td></tr></table></li></ul></div>"
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  ],
  "url" : "http://hl7.org/fhir/uv/phr/ValueSet/observation-activity-codes",
  "version" : "1.0.0-ballot2",
  "name" : "ObservationActivity",
  "title" : "Observation Activity Codes",
  "status" : "active",
  "experimental" : false,
  "date" : "2025-12-27T21:39:37+00:00",
  "publisher" : "HL7 International / Patient Empowerment",
  "contact" : [
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  "description" : "Codes representing activity-related measurement items",
  "jurisdiction" : [
    {
      "coding" : [
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          "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code" : "001",
          "display" : "World"
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  "compose" : {
    "include" : [
      {
        "system" : "http://hl7.org/fhir/uv/phr/CodeSystem/observation-pghd-codes",
        "concept" : [
          {
            "code" : "stepCount"
          },
          {
            "code" : "distanceWalkingRunning"
          },
          {
            "code" : "runningGroundContactTime"
          },
          {
            "code" : "runningPower"
          },
          {
            "code" : "runningSpeed"
          },
          {
            "code" : "runningStrideLength"
          },
          {
            "code" : "runningVerticalOscillation"
          },
          {
            "code" : "distanceCycling"
          },
          {
            "code" : "pushCount"
          },
          {
            "code" : "distanceWheelchair"
          },
          {
            "code" : "swimmingStrokeCount"
          },
          {
            "code" : "distanceSwimming"
          },
          {
            "code" : "distanceDownhillSnowSports"
          },
          {
            "code" : "basalEnergyBurned"
          },
          {
            "code" : "activeEnergyBurned"
          },
          {
            "code" : "totalEnergyBurned"
          },
          {
            "code" : "flightsClimbed"
          },
          {
            "code" : "nikeFuel"
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          {
            "code" : "appleExerciseTime"
          },
          {
            "code" : "appleMoveTime"
          },
          {
            "code" : "appleStandTime"
          },
          {
            "code" : "vo2Max"
          },
          {
            "code" : "lowCardioFitnessEvent"
          },
          {
            "code" : "appleStandHour"
          },
          {
            "code" : "cyclingCadence"
          },
          {
            "code" : "cyclingFunctionalThresholdPower"
          },
          {
            "code" : "cyclingPower"
          },
          {
            "code" : "cyclingSpeed"
          },
          {
            "code" : "distance"
          },
          {
            "code" : "elevationGained"
          },
          {
            "code" : "physicalEffort"
          },
          {
            "code" : "power"
          },
          {
            "code" : "stepsCadence"
          },
          {
            "code" : "speed"
          },
          {
            "code" : "pace"
          },
          {
            "code" : "moderateActivity"
          },
          {
            "code" : "vigorousActivity"
          },
          {
            "code" : "moderateToVigorousActivity"
          },
          {
            "code" : "met"
          },
          {
            "code" : "metByStandardRmr"
          }
        ]
      }
    ]
  }
}