Personal Health Device Implementation Guide
1.1.0 - STU 1.1 International flag

This page is part of the Personal Health Device FHIR IG (v1.1.0: STU 1) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version. For a full list of available versions, see the Directory of published versions

ASN1 BITs Codes

The ASN1 to HL7 code system is the result of mapping IEEE 11073-20601 BITs measurements or values to codes. HL7 (in V2, V3, and FHIR) has no native support for BITs type values.

The following tables gives the codes, names, and event or state type for the currently specified BITs measurements and values. The HL7 ASN1 Code is the code entered into the FHIR code elements. The ASN1 name is standardized and is analogous to the reference identifier for the nomenclature codes. If the state type is an event, only the 'set' meaning is displayed.

MDS and other Non-Measurement Attributes

MDS Power Status Attribute

Partition:Term Code: 1:2389 32-bit value 67925

Reference identifier: MDC_ATTR_POWER_STAT

Mder Bit HL7 ASN1 Code ASN1 name meaning when set meaning when cleared event or state
0 67925.0 onMains On mains power Not on mains power state
1 67925.1 onBattery On battery Not on battery state
8 67925.8 chargingFull Charging at full rate   event
9 67925.9 chargingTrickle Trickle charging   event
10 67925.10 chargingOff Not charging charging state

MDS Regulation Status from the Reg-Cert-Data-List Attribute

Partition:Term Code: 8:8066 32-bit code 532354

Reference identifier: MDC_REG_CERT_DATA_CONTINUA_REG_STATUS

Note that the cleared state is the regulated state. This choice is probably not what one expects.

Mder Bit HL7 ASN1 Code ASN1 name meaning when set meaning when cleared event or state
0 532354.0 regulation-status Device is unregulated Device is regulated state

MDS Time capabilities state from the Mds-Time-Info Attribute

Partition:Term Code 1:2683 32-bit code 68219 Reference Identifier: MDC_TIME_CAP_STATE

Only static settings, when present, are required to be reported.

Mder Bit HL7 ASN1 Code ASN1 name meaning when set meaning when cleared event or state
0 68219.0 mds-time-capab-real-time-clock real time clock supported   event
1 68219.1 mds-time-capab-set-clock setting the time by PHG supported   event
2 68219.2 mds-time-capab-relative-time relative time supported   event
3 68219.3 mds-time-capab-hi-res-relative-time hi res relative time supported   event
4 68219.4 mds-time-capab-sync-abs-time syncing absolute time supported   event
5 68219.5 mds-time-capab-sync-rel-time syncing relative time supported   event
6 68219.6 mds-time-capab-sync-hi-res-relative-time syncing hi res relative time supported   event
7 68219.7 mds-time-capab-bo-time base offset time supported   event
8 68219.8 mds-time-state-abs-time-synced absolute time synced   event (dynamic)
9 68219.9 mds-time-state-rel-time-synced relative time synced   event (dynamic)
10 68219.10 mds-time-state-hi-res-relative-time-synced hi-res relative time synced   event (dynamic)
11 68219.11 mds-time-mgr-set-time PHG requested to set the time   event (dynamic)
12 68219.12 mds-time-capab-sync-bo-time syncing base offset time supported   event
13 68219.13 mds-time-state-bo-time-synced base offset time synced   event (dynamic)
14 68219.14 mds-time-state-bo-time-UTC-aligned base offset time UTC aligned   event
15 68219.15 mds-time-dst-rules-enabled Daylight Savings Time rules understood   event

Alert Operational Status Attribute

This attribute is a metric descriptive attribute; it is not a measurement but an extra piece of information saying something about a measurement.

Partition:Term Code: 1:2310 32-bit code: 67846

Reference Identifier: MDC_ATTR_AL_OP_STAT

Mder Bit HL7 ASN1 Code ASN1 name meaning when set meaning when cleared event or state
0 67846.0 lim-alert-off all alerts (both high and low) are off one of the high and low may be on state
1 67846.1 lim-low-off low-limit detection is off low-limit detection is on state
2 67846.2 lim-high-off high-limit detection is off high-limit detection is on state

Enumeration Measurements

The following tables give the currently defined BITs measurements. These values are defined in the 11073 104xx specialization standards. The HL7 ASN1 codes for these and future values can be derived directly from the protocol exchange.

Pulse Oximeter Device and Sensor status

Partition:Term Code: 2:19532 32-bit code: 150604

Reference Identifier: MDC_PULS_OXIM_DEV_STATUS

Mder Bit HL7 ASN1 Code ASN1 name meaning when set meaning when cleared event or state
0 150604.0 sensor-disconnected Device not connected to sensor   event
1 150604.1 sensor-malfunction Sensor has malfunctioned   event
2 150604.2 sensor-displaced Sensor is incorrectly placed on user   event
3 150604.3 sensor-unsupported Device connected to unsupported sensor   event
4 150604.4 sensor-off Sensor not connected to user   event
5 150604.5 sensor-interference Sensor experiencing interference   event
6 150604.6 signal-searching Searching for a signal   event
7 150604.7 signal-pulse-questionable Questionable pulse detected   event
8 150604.8 signal-non-pulsatile Non pulsatile signal detected   event
9 150604.9 signal-erratic Signal is erratic   event
10 150604.10 signal-low-perfusion Signal experiencing low perfusion   event
11 150604.11 signal-poor Signal is poor"   event
12 150604.12 signal-inadequate Signal is inadequate   event
13 150604.13 signal-processing-irregularity Signal processing experiencing irregularity   event
14 150604.14 device-equipment-malfunction Device malfunction has occurred   event
15 150604.15 device-extended-update Extended display update in progress   event

Pulse Oximeter Pulsatile characteristics

Partition:Term Code: 2:19533 32-bit code: 150605

Reference Identifier: MDC_PULS_OXIM_PULS_CHAR

Mder Bit HL7 ASN1 Code ASN1 name meaning when set meaning when cleared event or state
0 150605.0 pulse-qual-nominal No abnormalities detected   event
1 150605.1 pulse-qual-marginal Pulse perfusion or quality marginal   event
2 150605.2 pulse-qual-minimal Pulse perfusion or quality minimal   event
3 150605.3 pulse-qual-unacceptable Pulse perfusion or quality unacceptable   event

ECG Device and Sensor status

Partition:Term Code: 128:21976 32-bit code: 8410584

Reference Identifier: MDC_ECG_DEV_STAT

Mder Bit HL7 ASN1 Code ASN1 name meaning when set meaning when cleared event or state
0 8410584.0 leadwire-loss loss of unspecified lead wire or electrode connection   event
1 8410584.1 leadsignal-loss loss of unspecified lead signal   event
2 8410584.2 leadwire-loss-first-lead loss of 1st lead wire or electrode connection   event
3 8410584.3 leadsignal-loss-first-lead loss of 1st lead signal   event
4 8410584.4 leadwire-loss-second-lead loss of 2nd lead wire or electrode connection   event
5 8410584.5 leadsignal-loss-second-lead loss of 2nd lead signal   event
6 8410584.6 leadwire-loss-third-lead loss of 3rd lead wire or electrode connection   event
7 8410584.7 leadsignal-loss-third-lead loss of 3rd lead signal   event

Glucose Meter Device and Sensor status

Partition:Term Code: 128:29144 32-bit code: 8417752

Reference Identifier: MDC_GLU_METER_DEV_STATUS

Mder Bit HL7 ASN1 Code ASN1 name meaning when set meaning when cleared event or state
0 8417752.0 device-battery-low Battery low   event
1 8417752.1 sensor-malfunction Sensor has malfunctioned   event
2 8417752.2 sensor-sample-size-insufficient Not enough blood in sample   event
3 8417752.3 sensor-strip-insertion Strip inserted incorrectly   event
4 8417752.4 sensor-strip-type-incorrect Strip not correct type   event
5 8417752.5 sensor-result-too-high Value too high   event
6 8417752.6 sensor-result-too-low Value too low   event
7 8417752.7 sensor-temp-too-high Temperature too high   event
8 8417752.8 sensor-temp-too-low Temperature too low   event
9 8417752.9 sensor-read-interrupt Process interrupted   event
10 8417752.10 device-gen-fault General device fault   event
11 8417752.11 sensor-temp-out-of-range Temperature out of range   event

Coagulation Meter Device and Sensor status

Partition:Term Code: 128:29301 32-bit code: 8417909

Reference Identifier: MDC_INR_METER_DEV_STATUS

Mder Bit HL7 ASN1 Code ASN1 name meaning when set meaning when cleared event or state
0 8417909.0 inr-device-battery-low Battery low   event
1 8417909.1 inr-sensor-malfunction Sensor has malfunctioned   event
2 8417909.2 inr-sensor-sample-size-insufficient Not enough blood in sample   event
3 8417909.3 inr-sensor-strip-insertion Strip inserted incorrectly   event
4 8417909.4 inr-sensor-strip-type-incorrect Strip not correct type   event
5 8417909.5 inr-sensor-result-too-high Value too high   event
6 8417909.6 inr-sensor-result-too-low Value too low   event
7 8417909.7 inr-sensor-temp-too-high Temperature too high   event
8 8417909.8 inr-sensor-temp-too-low Temperature too low   event
9 8417909.9 inr-sensor-read-interrupt Process interrupted   event
10 8417909.10 inr-device-gen-fault General device fault   event
11 8417909.11 inr-sensor-calibration-due Calibration is due   event

Generic 20601 Device and Sensor status

Partition:Term Code: 128:20000 32-bit code: 8408608

Reference Identifier: MDC_PHD_DM_DEV_STAT

Mder Bit HL7 ASN1 Code ASN1 name meaning when set meaning when cleared event or state
0 8408608.0 device-status-undetermined Undetermined device status event   event
1 8408608.1 device-status-reset Device reset   event
5 8408608.5 device-status-error Device error   event
6 8408608.6 device-status-error-mechanical Mechanical error   event
7 8408608.7 device-status-error-electronic Electronic error   event
8 8408608.8 device-status-error-software Software error   event
9 8408608.9 device-status-error-battery Battery error   event
15 8408608.15 device-status-service "Service required   event
16 8408608.16 device-status-service-time-sync-required Time-sync service required   event
17 8408608.17 device-status-service-calibration-required Calibration required   event
18 8408608.18 device-status-service-replenishment-required Replentishment required   event
25 8408608.25 device-status-battery-low Battery too low   event
26 8408608.26 device-status-battery-depleted Battery depleted   event
27 8408608.27 device-status-battery-replaced Battery replaced   event
28 8408608.28 device-status-battery-interrupted Battery interrupted   event

Continuous Glucose Monitor Device and Sensor status

Partition:Term Code: 128:29452 32-bit code: 8418060

Reference Identifier: MDC_CGM_DEV_STAT

Mder Bit HL7 ASN1 Code ASN1 name meaning when set meaning when cleared event or state
0 8418060.0 sensor-session-stopped Session stopped   event
2 8418060.2 sensor-type-incorrect Sensor type incorrect for device   event
3 8418060.3 sensor-malfunction Sensor malfunction   event
4 8418060.4 device-specific-alert Device Specific Alert   event
7 8418060.7 sensor-calibration-not-allowed Calibration not allowed   event
8 8418060.8 sensor-calibration-recommended Calibration recommended   event
9 8418060.9 sensor-calibration-required Calibration required   event
10 8418060.10 sensor-temp-too-high Temperature too high for valid result   event
11 8418060.11 sensor-temp-too-low Temperature too low for valid result   event
12 8418060.12 sensor-result-below-patient-low Sensor result below the Patient Low level   event
13 8418060.13 sensor-result-above-patient-high Sensor result above the Patient High level   event
14 8418060.14 sensor-low-hypo Sensor result below the Hypo level   event
15 8418060.15 sensor-high-hyper Sensor result above the Hyper level   event
16 8418060.16 sensor-rate-decrease-exceeded Sensor rate of decrease exceeded   event
17 8418060.17 sensor-rate-increase-exceeded Sensor rate of increase exceeded   event
18 8418060.18 sensor-result-too-low Sensor result lower than the device can process   event
19 8418060.19 sensor-result-too-high Sensor result higher than the device can process   event
20 8418060.20 sensor-com-out-of-range Sensor communication is out of range   event