Phg Device Profile

The properties and specifications of the PHG are reported in a Device resource. A PHG does not have an MDS object, but for the purposes of reporting the PHG information, like its system identifier, time synchronization, and serial number, these values are treated as if they came from MDS-attributes in an MDS object. These 'mock' attributes and object are not required to exist on the PHG.

Unlike the PHD where one reports the information if delivered, in the PHG case far fewer fields are required to be reported. The following table summarizes the required 'MDS' fields and their mappings:

'PHG MDS' field Device element
System Identifier identifier
Time sync protocol property

For Continua compliance, the values in the mock Reg-Cert-Data-List shall be included:

'Continua PHG MDS' field Device element
Continua Version version
Certified PAN Interfaces property
Certified H&FS Interfaces property
Regulation status property

A transport address is not required. It is still strongly recommended that the transport address is reported as it is often beneficial to consumers. Most PHD-PHG transports provide a means of obtaining a transport address or an equivalent identifier such as a USB VID and PID. In addition, it may be beneficial to report the transport address of the H&FS interface as well, such as the MAC address.

Similar to the PHD case, when CodeableConcept data types are used it is recommended to put the MDC reference identifier as part of the display element when the system element indicates the MDC coding system "urn.iso.std.iso:11073:10101".

The structure definition for the Phg Device Profile is shown below:

idΣ0..1id
id0..1string
extensionI0..*Extension
versionIdΣ0..1id
lastUpdatedΣ0..1instant
phgProfileΣ1..1uriFixed Value
securityΣ0..*CodingBinding
tagΣ0..*Coding
implicitRulesΣ ?!0..1uri
language0..1codeBinding
textI0..1Narrative
contained0..*Resource
MyExtensionI0..*Extension
modifierExtension?! I0..*Extension
id0..1string
extensionI0..*Extension
useΣ ?!0..1codeBinding
typeΣ0..1CodeableConceptBinding
systemΣ1..1uriFixed Value
valueΣ1..1string
periodΣ I0..1Period
assignerΣ I0..1Reference(http://hl7.org/fhir/StructureDefinition/Organization)
id0..1string
extensionI0..*Extension
useΣ ?!0..1codeBinding
typeΣ0..1CodeableConceptBinding
systemΣ1..1uri
valueΣ1..1string
periodΣ I0..1Period
assignerΣ I0..1Reference(http://hl7.org/fhir/StructureDefinition/Organization)
id0..1string
extensionI0..*Extension
id0..1string
extensionI0..*Extension
systemΣ1..1uriFixed Value
versionΣ0..1string
codeΣ1..1codeFixed Value
displayΣ0..1string
userSelectedΣ0..1boolean
textΣ0..1string
lastSystemChangeΣ0..0instant
sourceΣ I0..0Reference(http://hl7.org/fhir/StructureDefinition/Device)
parentΣ I0..0Reference(http://hl7.org/fhir/StructureDefinition/DeviceComponent)
operationalStatusΣ0..*CodeableConceptBinding
parameterGroupΣ0..1CodeableConceptBinding
measurementPrincipleΣ0..1codeBinding
id0..1string
extensionI0..*Extension
modifierExtensionΣ ?! I0..*Extension
id0..1string
extensionI0..*Extension
id0..1string
extensionI0..*Extension
systemΣ1..1uriFixed Value
versionΣ0..1string
codeΣ1..1code
displayΣ0..1string
userSelectedΣ0..1boolean
id0..1string
extensionI0..*Extension
systemΣ1..1uriFixed Value
versionΣ0..1string
codeΣ1..1code
displayΣ0..1string
userSelectedΣ0..1boolean
textΣ0..1string
componentIdΣ0..1Identifier
productionSpecΣ1..1string
languageCodeΣ0..1CodeableConceptBinding

A JSON example is given in Phg Device JSON Example

Meta Data Profile

The uploader shall populate the Device.meta.profile with http://pchalliance.org/phdfhir/StructureDefinition/PhgDevice indicating this resource is generated following this PHD Implementation Guide.

System Identifier

All 11073 20601 PHGs are required to have a system identifier. It is an EUI-64 consisting of 8 bytes. The system id is mapped to the Device.identifier.value element as a sequence of 8 2-digit bytes as HEX separated by dashes without the '0x' prefix commonly used in programming languages. An example of such a string is FE-ED-AB-EE-DE-AD-77-C3. It shall be reported.

It is strongly encouraged to also report the PHG PAN and H&FS transport addresses in a second and third identifier element. The transport addresses are as follows:

transport format example
Bluetooth EUI-48 00-E5-DE-AD-77-C3
ZigBee EUI-64 36-ED-9A-EE-DE-AD-77-C3
USB vid.pid 0043.F90D
MAC EUI-48 EE-FF-DE-AD-77-01

The identifier for the system id:

  • identifier.value=system id formatted as above
  • identifier.system="urn:oid:1.2.840.10004.1.1.1.0.0.1.0.0.1.2680"
  • identifier.use="official"
  • identifier.assigner.display="EUI-64

The identifier for the Bluetooth Address:

  • identifier.value=formatted as above
  • identifier.system="urn:oid:1.2.840.10004.1.1.1.0.0.1.0.0.1.2680"
  • identifier.assigner.display="EUI-48

Device type

The PHG Device.type is given by the MDC code 531981. The reference identifier for this code is MDC_MOC_VMS_MDS_AHD. "AHD" is the previous name Continua gave to what is now known as the PHG. However, reference identifiers are normative and once accepted, they cannot change. It shall be encoded as follows:

  • Device.type.coding.code="531981"
  • Device.type.coding.system="urn.iso.std.iso:11073:10101"
  • Device.type.coding.display="MDC_MOC_VMS_MDS_AHD: Continua Personal Health Gateway"

Here the display element is optional but highly recommended.

Time synchronization

The time synchronization is mapped as follows:

  • Device.property.type.coding.code="68220"
  • Device.property.type.coding.system="urn.iso.std.iso:11073:10101"
  • Device.property.type.coding.display="MDC_TIME_SYNC_PROTOCOL" (optional)
  • Device.property.valueCode.coding.code="32-bit code for sync method"
  • Device.property.valueCode.coding.system="urn.iso.std.iso:11073:10101"
  • Device.property.valueCode.coding.display="the ref id" (optional)

The 32-bit code for the time synchonization method is given by one of the following values:

32-bit code Reference identifier description partition:term code
532224 MDC_TIME_SYNC_NONE An uncalibrated and unsynchronized local clock source 8::7936
532234 MDC_TIME_SYNC_EBWW A manually set time, by ‘eyeball and wristwatch’ 8::7946
532225 MDC_TIME_SYNC_NTPV3 Network Time Protocol Version 3.0 (RFC 1305) 8::7937
532226 MDC_TIME_SYNC_NTPV4 Network Time Protocol Version 4.0 (under dev) 8::7938
532227 MDC_TIME_SYNC_SNTPV4 Simple Network Time Protocol v4 (RFC 2030) 8::7939
532228 MDC_TIME_SYNC_SNTPV4330 Simple Network Time Protocol v4 (RFC 4330) 8::7940
532229 MDC_TIME_SYNC_BTV1 Bluetooth Medical Device Profile 8::7941
532235 MDC_TIME_SYNC_USB_SOF Synced to the 1kHz USB "start-of-frame" clock 8::7947
532230 MDC_TIME_SYNC_RADIO Atomic Clock synchronization through RF 8::7942
532231 MDC_TIME_SYNC_HL7_NCK Synchronized via Health Level 7 NCK (network clock) 8::7943
532232 MDC_TIME_SYNC_CDMA CDMA mobile telecommunications synchronization 8::7944
532233 MDC_TIME_SYNC_GSM GSM - Network Identity and Time Zone (NITZ) 8::7945

Remaining Optional Data

The treatment of fields that would be in mock System-Model, Production-Specification, Reg-Cert-Data-List, and Mds-Time-Info attributes is the same as in the Phd Device Profile. However, there is an extra set of information in the mock Reg-Cert-Data-List regarding the certified Health & Fitness Service (H&FS) interfaces. A PHG has both PAN and H&FS interfaces.

Display elements are always optional.

If these fields are encoded they shall be encoded as follows:

Specializations

The specializations supported by the PHG may be reported. If reported, they shall be reported in the Device.specializations element for each specialization as follows:

  • specialization.systemType.coding.code="32-bit specialization code"
  • specialization.systemType.coding.system="urn.iso.std.iso:11073:10101"
  • specialization.systemType.coding.display"reference-id plus additional text"
  • specialization.version="specialization version"

If the PHG supports multiple versions of the specialization and the uploader wants to report this information, additional specializations entries for the additional versions are made. Alternatively the uploader can leave the version field empty.

A PHG is often designed to support all current and future PHDs that support a given version of the 11073-20601 standard. Instead of listing all the specializations individually (which could greatly increase the size of the message) one can use the 'generic' device code. In this case, the specialization.version element, if populated, indicates the version of the 20601 standard. If multiple versions of the 20601 standard are supported and the uploader wants to report this information, a separate 'generic' entries for each version are reported. Alternatively, the version element can be left empty.

An example of generic code use would be as follows

  • specialization.systemType.coding.code="528385"
  • specialization.systemType.coding.system="urn.iso.std.iso:11073:10101"
  • specialization.systemType.coding.display"MDC_DEV_SPEC_PROFILE_GENERIC: supports all 20601 devices"
  • specialization.version="2"

The following table gives a list of the more common specialization codes:

Specialization MDC Code partition:term code Reference Identifier
Generic 20601 8:4169 MDC_DEV_SPEC_PROFILE_GENERIC
Pulse Oximeter 8::4100 MDC_DEV_SPEC_PROFILE_PULS_OXIM
Electro cardiograph 8::4102 MDC_DEV_SPEC_PROFILE_MIN_ECG
Blood Pressure Cuff 8::4103 MDC_DEV_SPEC_PROFILE_BP
Thermometer 8::4104 MDC_DEV_SPEC_PROFILE_TEMP
Respiration rate 8::4109 MDC_DEV_SPEC_PROFILE_RESP_RATE
Weight Scale 8::4111 MDC_DEV_SPEC_PROFILE_SCALE
Glucose Monitor 8::4113 MDC_DEV_SPEC_PROFILE_GLUCOSE
Coagulation meter 8::4114 MDC_DEV_SPEC_PROFILE_COAG
Insulin Pump 8::4115 MDC_DEV_SPEC_PROFILE_INSULIN_PUMP
Body Composition Analyizer 8::4116 MDC_DEV_SPEC_PROFILE_BCA
Peak Flow meter 8::4117 MDC_DEV_SPEC_PROFILE_PEAK_FLOW
Sleep Apnea Breathing Equipment 8::4120 MDC_DEV_SPEC_PROFILE_SABTE
Continuous Glucose Monitor 8::4121 MDC_DEV_SPEC_PROFILE_CGM
Cardiovascular Device 8::4137 MDC_DEV_SPEC_PROFILE_HF_CARDIO
Strength Equipment 8::4138 MDC_DEV_SPEC_PROFILE_HF_STRENGTH
Independent Activity/Living Hub 8::4167 MDC_DEV_SPEC_PROFILE_AI_ACTIVITY_HUB
Medication Monitor 8::4168 MDC_DEV_SPEC_PROFILE_AI_MED_MINDER

In some sense, reporting specialization information about a PHG is superfluous as clearly, if the PHG uploads data from a given device, it supports that device.

PHG Product Information

The table blow provides codes and reference identifiers used in mapping the product information:

11073 Attribute description MDC code MDC reference identifier
System-Model Model number 531969 MDC_ID_MODEL_NUMBER
System-Model Manufacturer name 531970 MDC_ID_MODEL_MANUFACTURER
Production-Specification Unspecified 531971 MDC_ID_PROD_SPEC_UNSPECIFIED
Production-Specification Serial number 531972 MDC_ID_PROD_SPEC_SERIAL
Production-Specification Part number 531973 MDC_ID_PROD_SPEC_PART
Production-Specification Hardware revision 531974 MDC_ID_PROD_SPEC_HW
Production-Specification Software revision 531975 MDC_ID_PROD_SPEC_SW
Production-Specification Firmware revision 531976 MDC_ID_PROD_SPEC_FW
Production-Specification Protocol revision 531977 MDC_ID_PROD_SPEC_PROTOCOL
Production-Specification Global Medical Device Nomenclature (GMDN) 531978 MDC_ID_PROD_SPEC_GMDN
Reg-Cert-Data-List Continua version 532352 MDC_REG_CERT_DATA_CONTINUA_VERSION
Reg-Cert-Data-List Continua Certified Device List 532353 MDC_REG_CERT_DATA_CONTINUA_CERT_DEV_LIST
Reg-Cert-Data-List Regulation status 532354 MDC_REG_CERT_DATA_CONTINUA_REG_STATUS
PHG only Continua Certified H&FS List 532355 MDC_REG_CERT_DATA_CONTINUA_AHD_CERT_LIST
Mds-Time-Info Synchronization method 68220 MDC_TIME_SYNC_PROTOCOL
Mds-Time-Info Time capabilities 68219 MDC_TIME_CAP_STATE
Mds-Time-Info High resolution relative time resolution 68224 MDC_TIME_RES_REL_HI_RES
Mds-Time-Info Relative time resolution 68223 MDC_TIME_RES_REL
Mds-Time-Info Absolute Time time resolution 68222 MDC_TIME_RES_ABS
Mds-Time-Info Base offset time resolution 68226 MDC_TIME_RES_BO
Mds-Time-Info Time synchronization accuracy 68221 MDC_TIME_SYNC_ACCURACY

Primitives

  • manufacturer="PHG manufacturer"
  • modelNumber="PHG model number"
  • serialNumber="serial number"
  • partNumber="part number"

Hardware, Software, Firmware, Protocol, and Continua Versions

  • hardware

  • version.type.coding.code="531974"

  • version.type.coding.system="urn.iso.std.iso:11073:10101"

  • version.type.coding.display="MDC_ID_PROD_SPEC_HW + optional text"

  • version.value="hardware-version"

  • software

  • version.type.coding.code="531975"

  • version.type.coding.system="urn.iso.std.iso:11073:10101"

  • version.type.coding.display="MDC_ID_PROD_SPEC_SW + optional text"

  • version.value="software-version"

  • firmware

  • version.type.coding.code="531976"

  • version.type.coding.system="urn.iso.std.iso:11073:10101"

  • version.type.coding.display="MDC_ID_PROD_SPEC_FW + optional text"

  • version.value="firmware-version"

  • protocol

  • version.type.coding.code="531977"

  • version.type.coding.system="urn.iso.std.iso:11073:10101"

  • version.type.coding.display="MDC_ID_PROD_SPEC_PROTOCOL + optional text"

  • version.value="protocol-version" (Not 11073-20601 protocol!)

  • Continua

  • version.type.coding.code="532352"

  • version.type.coding.system="urn.iso.std.iso:11073:10101"

  • version.type.coding.display="MDC_REG_CERT_DATA_CONTINUA_VERSION + optional text"

  • version.value="Continua Version"

The Continua version has a major and minor component separated by a dot (.). For example, "6.1" where "6" is the major version and "1" is the minor version.

Continua Certified PAN interfaces

The Continua certified PAN (Personal Area Network) interfaces are represented as a list of Continua-specified 'PAN' codes. Note there is a difference between certified PAN interfaces and supported PAN interfaces. The Continua-specified certification codes are a combination of a transport 'Tcode' and a specialization code which is based on the 16-bit term code of the MDC code for the specialization. The PAN code is generated by

  • PANCode = Tcode * 8192 + (specialization term code - 4096)

The transport 'Tcodes' are as follows:

Tcode Transport
0 Continua version 1.0
1 USB
2 Bluetooth HDP
3 ZigBee
4 Bluetooth Low Energy
5 NFC

The special Tcode of 0 is for Continua version 1.0 when there was no transport component in the reported certified PAN interface codes.

The PANCodes are mapped to a list of property.valueCode elements. The property.type element, which identifies the property, is given by the MDC 32-bit code 532353. Its reference id is MDC_REG_CERT_DATA_CONTINUA_CERT_DEV_LIST.

  • property.type.coding.code="532353"
  • property.type.coding.system="urn.iso.std.iso:11073:10101"
  • property.type.coding.display="MDC_REG_CERT_DATA_CONTINUA_CERT_DEV_LIST + text"
  • property.valueCodeN.coding.code="PANCodeN"
  • property.valueCodeN.coding.system="placeholder/fhir/reg-cert-codes "

Note that the property.valueCode element is an array and one can have many of these in a single property element.

Continua Certified Health & Fitness interfaces

The Continua certified Health and Fitness interfaces are represented as a list of Continua-specified 'H&FS' codes as follows:

Health & Fitness Interface H&FS code Reference name
PCD-01 web services 0 observation-upload-soap
Consent enabled PCD-01 web service 1 consent-enabled-soap
Capability exchange 2 capabilities
PCD-01 upload using hData 3 observation-upload-hdata
Consent enabled PCD-01 using hData 4 consent-enabled-hdata
Questionnaire CDA 5 questionnaire
Authenticated Persistent Sessions 6 aps
FHIR resource upload 7 observation-upload-fhir

The Health and Fitness codes are mapped to a list of property.valueCode elements. The property.type element, which identifies the property, is given by the MDC 32-bit code 532355. Its reference id is MDC_REG_CERT_DATA_CONTINUA_CERT_DEV_LIST.

  • property.type.coding.code="532355"
  • property.type.coding.system="urn.iso.std.iso:11073:10101"
  • property.type.coding.display="MDC_REG_CERT_DATA_CONTINUA_AHD_CERT_DEV_LIST + text"
  • property.valueCodeN.coding.code="H&FSCodeN"
  • property.valueCodeN.coding.system="placeholder/fhir/reg-cert-wan-codes "

Regulation Status

The PHG regulation status is reported as follows:

  • property.type.coding.code="532354.0"
  • property.type.coding.system="placeholder/fhir/IEEE.ASN1"
  • property.type.coding.display="regulation-status"
  • property.valueCode.coding.code="Y/N"
  • property.valueCode.coding.system="http://hl7.org/fhir/v2/0136 "
  • property.valueCode.coding.display="Y=unregulated N=regulated"

Time Synchronization Accuracy

The time synchronization accuracy is reported in microseconds as follows:

  • Device.property.type.coding.code="68221"
  • Device.property.type.coding.system="urn.iso.std.iso:11073:10101"
  • Device.property.type.coding.display="MDC_TIME_SYNC_ACCURACY" (optional)
  • Device.property.valueQuantity.value="time-sync-accuracy"
  • Device.property.valueQuantity.system="http://unitsofmeasure.org"
  • Device.property.valueQuantity.code="us" (UCUM code for microseconds)

Phg Device JSON Example

The following is an example of a Phg Device resource.

{
	"resourceType": "Device",
	"id": "SysId-ecde3d4e58532d31",
	"identifier": [{
		"system": "urn:oid:1.2.840.10004.1.1.1.0.0.1.0.0.1.2680",
		"value": "ec-de-3d-4e-58-53-2d-31",
		"assigner": {
			"display": "EUI-64"
		}
	}],
	"manufacturer": "Continua Medical PHGs",
	"type": {
		"coding": [{
			"system": "urn:iso:std:iso:11073:10101",
			"code": "531981",
			"display": "MDC_MOC_VMS_MDS_AHD"
		}]
	},
	"specialization": [{
		"systemType": {
			"coding": [{
				"system": "urn:iso:std:iso:11073:10101",
				"code": "528457",
				"display": "MDC_DEV_SPEC_PROFILE_GENERIC: Handles all 20601 compliant devices"
			}]
		},
		"version": "2"
	}],
	"version": [{
			"type": {
				"coding": [{
					"system": "urn:iso:std:iso:11073:10101",
					"code": "531975",
					"display": "MDC_ID_PROD_SPEC_SW: Software revision"
				}]
			},
			"value": "1.0.0"
		},
		{
			"type": {
				"coding": [{
					"system": "urn:iso:std:iso:11073:10101",
					"code": "532352",
					"display": "MDC_REG_CERT_DATA_CONTINUA_VERSION: Continua version"
				}]
			},
			"value": "6.0"
		}
	],
	"property": [{
			"type": {
				"coding": [{
					"system": "urn:iso:std:iso:11073:10101",
					"code": "68220",
					"display": "MDC_TIME_SYNC_PROTOCOL: Time synchronization protocol"
				}]
			},
			"valueCode": [{
				"coding": [{
					"system": "urn:iso:std:iso:11073:10101",
					"code": "532233",
					"display": "MDC_TIME_SYNC_GSM: "
				}]
			}]
		},
		{
			"type": {
				"coding": [{
					"system": "urn:iso:std:iso:11073:10101",
					"code": "532353",
					"display": "MDC_REG_CERT_DATA_CONTINUA_CERT_DEV_LIST: certified device list as transport-specialization combo"
				}]
			},
			"valueCode": [{
				"coding": [{
					"system": "http://pcha.org/phd/documents/reg-cert-codes",
					"code": "4"
				}]
			}]
		},
		{
			"type": {
				"coding": [{
					"system": "urn:iso:std:iso:11073:10101",
					"code": "532355",
					"display": "MDC_REG_CERT_DATA_CONTINUA_AHD_CERT_LIST: certified Upload classes"
				}]
			},
			"valueCode": [{
					"coding": [{
						"system": "http://pcha.org/phd/documents/reg-cert-wan-codes",
						"code": "2"
					}]
				},
				{
					"coding": [{
						"system": "http://pcha.org/phd/documents/reg-cert-wan-codes",
						"code": "7"
					}]
				}
			]
		},
		{
			"type": {
				"coding": [{
					"system": "http://hl7.org/fhir/IEEE.ASN1",
					"code": "532354.0",
					"display": "regulation-status"
				}]
			},
			"valueCode": [{
				"coding": [{
					"system": "http://hl7.org/fhir/v2/0136",
					"code": "Y",
					"display": "Device is not regulated"
				}]
			}]
		}
	]
}