The following Table provides the detailed mapping for the OMH Step Count DataPoint to the OMH to FHIR Observation Profile TODO: add link to map and profile:
| Index | OMH Step Count Element | FHIR Attribute | Mapping Instructions |
|---|---|---|---|
| 1 | step-count-3.0.json | OMH to FHIR Observation Profile | |
| 2.1 | body.step_count | Observation.valueQuantity | see valueQuantity elements below, if body.descriptive_statistic_denominator is present is modifies the units as described below |
| 2.2 | body.step_count.value | Observation.valueQuantity.value | = body.step_count.value |
| 2.3 | body.step_count.unit | Observation.valueQuantity.unit | IF body.descriptive_statistic_denominatoris present = concatenation of 'steps' + mapping of body.descriptive_statistic_denominator to column 'Unit' using the OMH_FHIR_Descriptive_Statistic_Denominator_Mapping _Table (for example 'steps/day') ELSE = 'steps' |
| 2.4 | body.step_count.unit | Observation.valueQuantity.system | fixed to 'http://unitsofmeasure.org' |
| 2.5 | body.step_count.unit | Observation.valueQuantity.code | IF is present = concatenation of '{steps}' + mapping of body.descriptive_statistic_denominator to column 'Code' using the OMH_FHIR_Descriptive_Statistic_Denominator_Mapping _Table (for example '{steps}/d') ELSE = '{steps}' |
| 3 | body.effective_time_frame | Observation.effectivePeriod | see effectivePeriod elements below |
| 4 | body.effective_time_frame.time_interval | Observation.effectivePeriod | see effectivePeriod elements below |
| 4.1 | body.effective_time_frame.time_interval.start_date_time | Observation.effectivePeriod.start | = body.effective_time_frame.time_interval.start_date_time |
| 4.2 | body.effective_time_frame.time_interval.end_date_time | Observation.effectivePeriod.end | = body.effective_time_frame.time_interval.end_date_time |
| 5 | body.descriptive_statistic | Observation.code.coding[1] | Map descriptive statistic to the OMH to FHIR additional Observation codings ( code system http://www.fhir.org/guides/mfhir/omh_fhir_observation_codes). |
| 5.1 | body.descriptive_statistic | Observation.code.coding[1].code | IF body.descriptive_statistic_denominator is present = concatenation of header.schema_id.name = 'step-count' + '-' + body.descriptive_statistic/body.descriptive_statistic_denominator for example= step-count-maximum/session, ELSE = concatenation of header.schema_id.name = 'step-count' + '-' + body.descriptive_statistic for example= step-count-maximum |
| 5.2 | body.descriptive_statistic | Observation.code.coding[1].system | fixed to '"http://www.fhir.org/guides/mfhir/omh_fhir_observation_codes"' |
| 5.3 | body.descriptive_statistic | Observation.code.coding[1].display | IF body.descriptive_statistic_denominator is present = concatenation of header.schema_id.name = 'step-count' + '-' + body.descriptive_statistic/body.descriptive_statistic_denominator for example= step-count-maximum/session, ELSE = concatenation of header.schema_id.name = 'step-count' + '-' + body.descriptive_statistic for example= step-count-maximum |
| 5 | body.descriptive_statistic_denominator | Observation.code.coding[1] | see body.descriptive_statistic above and |
| 5.A1 | body.descriptive_statistic_denominator | Observation.code.coding[1].code | see body.descriptive_statistic above |
| 5.A2 | body.descriptive_statistic_denominator | Observation.code.coding[1].system | see body.descriptive_statistic above |
| 5.A3 | body.descriptive_statistic_denominator | Observation.code.coding[1].display | see body.descriptive_statistic above |
| 5.B1 | body.descriptive_statistic_denominator | Observation.valueQuantity.unit | see body.step_count.unit above |
| 5.B2 | body.descriptive_statistic_denominator | Observation.valueQuantity.code | see body.step_count.unit above |
The following OMH step-count schema instance:
{
"header": {
"id": "0bc679ad-18e0-4b31-8ad4-514c068b1bde",
"creation_date_time": "2020-05-30T02:48:07.649124Z",
"schema_id": {
"namespace": "omh",
"name": "step-count",
"version": "3.0"
},
"acquisition_provenance": {
"source_name": "Acme step-count device",
"source_creation_date_time": "2020-05-30T02:48:07.649124Z",
"source_data_point_id": "6415d547-deb9-40e7-9954-68c0fc20a2f8",
"modality": "sensed"
},
"user_id": "9d2fad2d-3e03-4749-b864-3089f4e8c2a2"
},
"body": {
"step_count": {
"value": 10600,
"unit": "steps"
},
"effective_time_frame": {
"time_interval": {
"start_date_time": "2016-02-05T06:25:00Z",
"end_date_time": "2016-02-05T07:25:00Z"
}
}
}
}Maps to this FHIR Observation (note that this example does not include the optional Provenance resource)
{
"resourceType": "Observation",
"meta": {
"profile": [
"http://www.fhir.org/mfhir/StructureDefinition/omh_fhir_profile_quantitative_observation"
]
},
"identifier": [
{
"system": "https://omh.org/shimmer/ids",
"value": "0bc679ad-18e0-4b31-8ad4-514c068b1bde"
}
],
"status": "unknown",
"category": [
{
"coding": [
{
"system": "http://terminology.hl7.org/CodeSystem/observation-category",
"code": "physical-activity",
"display": "Physical Activity"
}
]
}
],
"code": {
"coding": [
{
"system": "http://loinc.org",
"code": "55423-8",
"display": "Number of steps in unspecified time Pedometer"
}
]
},
"subject": {
"identifier": {
"system": "https://omh.org/shimmer/patient_ids",
"value": "9d2fad2d-3e03-4749-b864-3089f4e8c2a2"
}
},
"effectivePeriod": {
"start": "2016-02-05T06:25:00Z",
"end": "2016-02-05T07:25:00Z"
},
"issued": "2020-05-30T02:48:07.649124Z",
"valueQuantity": {
"value": 10600,
"unit": "steps",
"system": "http://unitsofmeasure.org",
"code": "{steps}"
},
"device": {
"extension": [
{
"url": "http://www.fhir.org/mfhir/StructureDefinition/omh_fhir_observation_device_modality",
"valueCode": "sensed"
}
],
"display": "Acme step-count device"
}
}The following OMH step-count schema instance:
{
"header": {
"id": "8f6a786e-6b23-43d3-85ec-ac2fba7503c9",
"creation_date_time": "2020-05-30T03:23:07.410436Z",
"schema_id": {
"namespace": "omh",
"name": "step-count",
"version": "3.0"
},
"acquisition_provenance": {
"source_name": "Acme step-count device",
"source_creation_date_time": "2020-05-30T03:23:07.410436Z",
"source_data_point_id": "e09923d3-333d-4776-aafa-6d60b1a00f47",
"modality": "sensed"
},
"user_id": "b368544e-2bc6-4352-a726-f89f9d325239"
},
"body": {
"step_count": {
"value": 12500,
"unit": "steps"
},
"effective_time_frame": {
"time_interval": {
"start_date_time": "2016-05-05T07:00:00Z",
"end_date_time": "2016-06-05T07:00:00Z"
}
},
"descriptive_statistic": "average",
"descriptive_statistic_denominator": "d"
}
}Maps to this FHIR Observation (note that this example does not include the optional Provenance resource)
{
"resourceType": "Observation",
"meta": {
"profile": [
"http://www.fhir.org/mfhir/StructureDefinition/omh_fhir_profile_quantitative_observation"
]
},
"identifier": [
{
"system": "https://omh.org/shimmer/ids",
"value": "8f6a786e-6b23-43d3-85ec-ac2fba7503c9"
}
],
"status": "unknown",
"category": [
{
"coding": [
{
"system": "http://terminology.hl7.org/CodeSystem/observation-category",
"code": "physical-activity",
"display": "Physical Activity"
}
]
}
],
"code": {
"coding": [
{
"system": "http://loinc.org",
"code": "55423-8",
"display": "Number of steps in unspecified time Pedometer"
},
{
"system": "http://hl7.org/fhir/omh_fhir_observation_codes",
"code": "step-count-average/d",
"display": "Step Count-Average/day"
}
]
},
"subject": {
"identifier": {
"system": "https://omh.org/shimmer/patient_ids",
"value": "b368544e-2bc6-4352-a726-f89f9d325239"
}
},
"effectivePeriod": {
"start": "2016-05-05T07:00:00Z",
"end": "2016-06-05T07:00:00Z"
},
"issued": "2020-05-30T03:23:07.410436Z",
"valueQuantity": {
"value": 12500,
"unit": "steps/day",
"system": "http://unitsofmeasure.org",
"code": "{steps}/d"
},
"device": {
"extension": [
{
"url": "http://www.fhir.org/mfhir/StructureDefinition/omh_fhir_observation_device_modality",
"valueCode": "sensed"
}
],
"display": "Acme step-count device"
}
}The following OMH step-count schema instance:
{
"header": {
"id": "a65d9730-849d-4a63-84c6-7e4c0b06ebec",
"creation_date_time": "2020-05-30T03:27:11.821458Z",
"schema_id": {
"namespace": "omh",
"name": "step-count",
"version": "3.0"
},
"acquisition_provenance": {
"source_name": "Acme step-count device",
"source_creation_date_time": "2020-05-30T03:27:11.821458Z",
"source_data_point_id": "1f291bf1-03a6-403e-a492-6d587ada68a7",
"modality": "sensed"
},
"user_id": "27215a90-d840-48dc-812d-b992c3b11447"
},
"body": {
"step_count": {
"value": 26000,
"unit": "steps"
},
"effective_time_frame": {
"time_interval": {
"start_date_time": "2016-02-05T07:00:00Z",
"end_date_time": "2016-06-05T07:00:00Z"
}
},
"descriptive_statistic": "maximum",
"descriptive_statistic_denominator": "session"
}
}Maps to this FHIR Observation (note that this example does not include the optional Provenance resource)
{
"resourceType": "Observation",
"meta": {
"profile": [
"http://www.fhir.org/mfhir/StructureDefinition/omh_fhir_profile_quantitative_observation"
]
},
"identifier": [
{
"system": "https://omh.org/shimmer/ids",
"value": "a65d9730-849d-4a63-84c6-7e4c0b06ebec"
}
],
"status": "unknown",
"category": [
{
"coding": [
{
"system": "http://terminology.hl7.org/CodeSystem/observation-category",
"code": "physical-activity",
"display": "Physical Activity"
}
]
}
],
"code": {
"coding": [
{
"system": "http://loinc.org",
"code": "55423-8",
"display": "Number of steps in unspecified time Pedometer"
},
{
"system": "http://hl7.org/fhir/omh_fhir_observation_codes",
"code": "step-count-maximum/{session}",
"display": "Step Count-Maximum/session"
}
]
},
"subject": {
"identifier": {
"system": "https://omh.org/shimmer/patient_ids",
"value": "27215a90-d840-48dc-812d-b992c3b11447"
}
},
"effectivePeriod": {
"start": "2016-02-05T07:00:00Z",
"end": "2016-06-05T07:00:00Z"
},
"issued": "2020-05-30T03:27:11.821458Z",
"valueQuantity": {
"value": 26000,
"unit": "steps/session",
"system": "http://unitsofmeasure.org",
"code": "{steps}/{session}"
},
"device": {
"extension": [
{
"url": "http://www.fhir.org/mfhir/StructureDefinition/omh_fhir_observation_device_modality",
"valueCode": "sensed"
}
],
"display": "Acme step-count device"
}
}The following OMH step-count schema instance:
{
"header": {
"id": "83efa8ad-5114-4f76-aac1-87317e60b4f4",
"creation_date_time": "2020-05-30T03:28:32.463195Z",
"schema_id": {
"namespace": "omh",
"name": "step-count",
"version": "3.0"
},
"acquisition_provenance": {
"source_name": "Acme step-count device",
"source_creation_date_time": "2020-05-30T03:28:32.463195Z",
"source_data_point_id": "fc1b059c-0c11-42d9-a34a-76de23e4048c",
"modality": "sensed"
},
"user_id": "e3bc6931-8103-4b56-87fb-11d645524030"
},
"body": {
"step_count": {
"value": 20500,
"unit": "steps"
},
"effective_time_frame": {
"time_interval": {
"start_date_time": "2016-02-05T07:00:00Z",
"end_date_time": "2016-06-05T07:00:00Z"
}
},
"descriptive_statistic": "maximum",
"descriptive_statistic_denominator": "d"
}
}Maps to this FHIR Observation (note that this example does not include the optional Provenance resource)
{
"resourceType": "Observation",
"meta": {
"profile": [
"http://www.fhir.org/mfhir/StructureDefinition/omh_fhir_profile_quantitative_observation"
]
},
"identifier": [
{
"system": "https://omh.org/shimmer/ids",
"value": "83efa8ad-5114-4f76-aac1-87317e60b4f4"
}
],
"status": "unknown",
"category": [
{
"coding": [
{
"system": "http://terminology.hl7.org/CodeSystem/observation-category",
"code": "physical-activity",
"display": "Physical Activity"
}
]
}
],
"code": {
"coding": [
{
"system": "http://loinc.org",
"code": "55423-8",
"display": "Number of steps in unspecified time Pedometer"
},
{
"system": "http://hl7.org/fhir/omh_fhir_observation_codes",
"code": "step-count-maximum/d",
"display": "Step Count-Maximum/day"
}
]
},
"subject": {
"identifier": {
"system": "https://omh.org/shimmer/patient_ids",
"value": "e3bc6931-8103-4b56-87fb-11d645524030"
}
},
"effectivePeriod": {
"start": "2016-02-05T07:00:00Z",
"end": "2016-06-05T07:00:00Z"
},
"issued": "2020-05-30T03:28:32.463195Z",
"valueQuantity": {
"value": 20500,
"unit": "steps/day",
"system": "http://unitsofmeasure.org",
"code": "{steps}/d"
},
"device": {
"extension": [
{
"url": "http://www.fhir.org/mfhir/StructureDefinition/omh_fhir_observation_device_modality",
"valueCode": "sensed"
}
],
"display": "Acme step-count device"
}
}