This page is part of the Personal Health Device FHIR IG (v2.0.0-ballot: STU 2 Ballot 1) based on FHIR (HL7® FHIR® Standard) v4.3.0. The current version which supersedes this version is 1.0.0. 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