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# Value Set ObservationType 2017‑12‑17

From publication for project HL7 Italia specifiche per l’implementazione | Release V1.0 as of 2026‑07‑21 15:53:20 | | | HTML built on 2026‑07‑21 17:01:26

This terminology is a snapshot as of 2026‑07‑21 15:53:20. Terminologies may evolve over time. If you need recent (dynamic) versions of this terminology, please retrieve it from the source.
Id | 2.16.840.1.113883.1.11.16226 ref ad2bbr- | Effective Date | 2017‑12‑17
Status | Final | Version Label | DEFN=UV=VO=1402-20171217
Name | ObservationType | Display Name | ObservationType
Description
History description 2014-03-26: Lock all vaue sets untouched since 2014-03-26 to trackingId 2014T1_2014_03_26 description: Identifies the kinds of observations that can be performed
Usage: 1
Id | Name | Type
--- | --- | ---
Template
2.16.840.1.113883.10.12.303 | CDA Observation | DYNAMIC
A valid code from the code system:
Code System Name | Code System Id
loinc | 2.16.840.1.113883.6.1
Or one of the following:
Source Code System | 2.16.840.1.113883.5.4 - Act Code - FHIR: http://terminology.hl7.org/CodeSystem/v3-ActCode
Level/ Type | Code | Display Name / Intensional Definition | Code System
--- | --- | --- | ---
1‑A | _ActSpecObsCode | ActSpecObsCode | Act Code
2‑L | ARTBLD | ActSpecObsArtBldCode | Act Code
2‑S | DILUTION | ActSpecObsDilutionCode | Act Code
3‑L | AUTO-HIGH | Auto-High Dilution | Act Code
3‑L | AUTO-LOW | Auto-Low Dilution | Act Code
3‑L | PRE | Pre-Dilution | Act Code
3‑L | RERUN | Rerun Dilution | Act Code
2‑L | EVNFCTS | ActSpecObsEvntfctsCode | Act Code
2‑S | INTFR | ActSpecObsInterferenceCode | Act Code
3‑L | FIBRIN | Fibrin | Act Code
3‑L | HEMOLYSIS | Hemolysis | Act Code
3‑L | ICTERUS | Icterus | Act Code
3‑L | LIPEMIA | Lipemia | Act Code
2‑S | VOLUME | ActSpecObsVolumeCode | Act Code
3‑L | AVAILABLE | Available Volume | Act Code
3‑L | CONSUMPTION | Consumption Volume | Act Code
3‑L | CURRENT | Current Volume | Act Code
3‑L | INITIAL | Initial Volume | Act Code
1‑A | _AnnotationType | AnnotationType | Act Code
2‑S | _ActPatientAnnotationType | ActPatientAnnotationType | Act Code
3‑L | ANNDI | diagnostic image note | Act Code
3‑L | ANNGEN | general note | Act Code
3‑L | ANNIMM | immunization note | Act Code
3‑L | ANNLAB | laboratory note | Act Code
3‑L | ANNMED | medication note | Act Code
1‑A | _GeneticObservationType | GeneticObservationType | Act Code
2‑L | GENE | gene | Act Code
1‑S | _ImmunizationObservationType | ImmunizationObservationType | Act Code
2‑L | OBSANTC | antigen count | Act Code
2‑L | OBSANTV | antigen validity | Act Code
1‑A | _IndividualCaseSafetyReportType | Individual Case Safety Report Type | Act Code
2‑L | PAT_ADV_EVNT | patient adverse event | Act Code
2‑L | VAC_PROBLEM | vaccine product problem | Act Code
1‑A | _LOINCObservationActContextAgeType | LOINCObservationActContextAgeType | Act Code
2‑L | 21611-9 | age patient qn est | Act Code
2‑L | 21612-7 | age patient qn reported | Act Code
2‑L | 29553-5 | age patient qn calc | Act Code
2‑L | 30525-0 | age patient qn definition | Act Code
2‑L | 30972-4 | age at onset of adverse event | Act Code
1‑A | _MedicationObservationType | MedicationObservationType | Act Code
2‑L | REP_HALF_LIFE | representative half-life | Act Code
2‑L | SPLCOATING | coating | Act Code
2‑L | SPLCOLOR | color | Act Code
2‑L | SPLIMAGE | image | Act Code
2‑L | SPLIMPRINT | imprint | Act Code
2‑L | SPLSCORING | scoring | Act Code
2‑L | SPLSHAPE | shape | Act Code
2‑L | SPLSIZE | size | Act Code
2‑L | SPLSYMBOL | symbol | Act Code
1‑A | _ObservationIssueTriggerCodedObservationType | ObservationIssueTriggerCodedObservationType | Act Code
2‑A | _CaseTransmissionMode | case transmission mode | Act Code
3‑L | AIRTRNS | airborne transmission | Act Code
3‑L | ANANTRNS | animal to animal transmission | Act Code
3‑L | ANHUMTRNS | animal to human transmission | Act Code
3‑L | BDYFLDTRNS | body fluid contact transmission | Act Code
3‑L | BLDTRNS | blood borne transmission | Act Code
3‑L | DERMTRNS | transdermal transmission | Act Code
3‑L | ENVTRNS | environmental exposure transmission | Act Code
3‑L | FECTRNS | fecal-oral transmission | Act Code
3‑L | FOMTRNS | fomite transmission | Act Code
3‑L | FOODTRNS | food-borne transmission | Act Code
3‑L | HUMHUMTRNS | human to human transmission | Act Code
3‑L | INDTRNS | indeterminate disease transmission mode | Act Code
3‑L | LACTTRNS | lactation transmission | Act Code
3‑L | NOSTRNS | nosocomial transmission | Act Code
3‑L | PARTRNS | parenteral transmission | Act Code
3‑L | PLACTRNS | transplacental transmission | Act Code
3‑L | SEXTRNS | sexual transmission | Act Code
3‑L | TRNSFTRNS | transfusion transmission | Act Code
3‑L | VECTRNS | vector-borne transmission | Act Code
3‑L | WATTRNS | water-borne transmission | Act Code
1‑S | _ObservationQualityMeasureAttribute | ObservationQualityMeasureAttribute | Act Code
2‑L | AGGREGATE | aggregate measure observation | Act Code
2‑L | CMPMSRMTH | composite measure method | Act Code
2‑L | CMPMSRSCRWGHT | component measure scoring weight | Act Code
2‑L | COPY | copyright | Act Code
2‑L | CRS | clinical recommendation statement | Act Code
2‑L | DEF | definition | Act Code
2‑L | DISC | disclaimer | Act Code
2‑L | FINALDT | finalized date/time | Act Code
2‑L | GUIDE | guidance | Act Code
2‑L | IDUR | improvement notation | Act Code
2‑L | ITMCNT | items counted | Act Code
2‑L | KEY | keyword | Act Code
2‑L | MEDT | measurement end date | Act Code
2‑L | MSD | measurement start date | Act Code
2‑L | MSRADJ | risk adjustment | Act Code
2‑L | MSRAGG | rate aggregation | Act Code
2‑L | MSRIMPROV | health quality measure improvement notation | Act Code
2‑L | MSRJUR | jurisdiction | Act Code
2‑L | MSRRPTR | reporter type | Act Code
2‑L | MSRRPTTIME | timeframe for reporting | Act Code
2‑L | MSRSCORE | measure scoring | Act Code
2‑L | MSRSET | health quality measure care setting | Act Code
2‑L | MSRTOPIC | health quality measure topic type | Act Code
2‑L | MSRTP | measurement period | Act Code
2‑L | MSRTYPE | measure type | Act Code
2‑L | RAT | rationale | Act Code
2‑L | REF | reference | Act Code
2‑L | SDE | supplemental data elements | Act Code
2‑L | STRAT | stratification | Act Code
2‑L | TRANF | transmission format | Act Code
2‑L | USE | notice of use | Act Code
1‑A | _ObservationSequenceType | ObservationSequenceType | Act Code
2‑L | TIME_ABSOLUTE | absolute time sequence | Act Code
2‑L | TIME_RELATIVE | relative time sequence | Act Code
1‑A | _ObservationSeriesType | ObservationSeriesType | Act Code
2‑A | _ECGObservationSeriesType | ECGObservationSeriesType | Act Code
3‑L | REPRESENTATIVE_BEAT | ECG representative beat waveforms | Act Code
3‑L | RHYTHM | ECG rhythm waveforms | Act Code
1‑S | _PatientImmunizationRelatedObservationType | PatientImmunizationRelatedObservationType | Act Code
2‑L | CLSSRM | classroom | Act Code
2‑L | GRADE | grade | Act Code
2‑L | SCHL | school | Act Code
2‑L | SCHLDIV | school division | Act Code
2‑L | TEACHER | teacher | Act Code
1‑A | _PopulationInclusionObservationType | PopulationInclusionObservationType | Act Code
2‑L | DENEX | denominator exclusions | Act Code
2‑L | DENEXCEP | denominator exceptions | Act Code
2‑L | DENOM | denominator | Act Code
2‑S | IPOP | initial population | Act Code
3‑L | IPPOP | initial patient population | Act Code
2‑L | MSROBS | measure observation | Act Code
2‑L | MSRPOPL | measure population | Act Code
2‑L | MSRPOPLEX | measure population exclusions | Act Code
2‑L | NUMER | numerator | Act Code
2‑L | NUMEX | numerator exclusions | Act Code
1‑A | _PreferenceObservationType | _PreferenceObservationType | Act Code
2‑L | PREFSTRENGTH | preference strength | Act Code
1‑L | ADVERSE_REACTION | Adverse Reaction | Act Code
1‑L | ASSERTION | Assertion | Act Code
1‑L | CASESER | case seriousness criteria | Act Code
1‑L | CDIO | case disease imported observation | Act Code
1‑L | CRIT | criticality | Act Code
1‑L | CTMO | case transmission mode observation | Act Code
1‑S | DX | ObservationDiagnosisTypes | Act Code
2‑L | ADMDX | admitting diagnosis | Act Code
2‑L | DISDX | discharge diagnosis | Act Code
2‑L | INTDX | intermediate diagnosis | Act Code
2‑L | NOI | nature of injury | Act Code
1‑L | GISTIER | GIS tier | Act Code
1‑L | HHOBS | household situation observation | Act Code
1‑S | ISSUE | detected issue | Act Code
2‑A | _ActAdministrativeDetectedIssueCode | ActAdministrativeDetectedIssueCode | Act Code
3‑A | _ActAdministrativeAuthorizationDetectedIssueCode | ActAdministrativeAuthorizationDetectedIssueCode | Act Code
4‑L | NAT | Insufficient authorization | Act Code
4‑L | SUPPRESSED | record suppressed | Act Code
4‑S | VALIDAT | validation issue | Act Code
5‑L | KEY204 | Unknown key identifier | Act Code
5‑L | KEY205 | Duplicate key identifier | Act Code
5‑S | COMPLY | Compliance Alert | Act Code
6‑S | DUPTHPY | Duplicate Therapy Alert | Act Code
7‑L | DUPTHPCLS | duplicate therapeutic alass alert | Act Code
7‑L | DUPTHPGEN | duplicate generic alert | Act Code
6‑L | ABUSE | commonly abused/misused alert | Act Code
6‑L | FRAUD | potential fraud | Act Code
6‑L | PLYDOC | Poly-orderer Alert | Act Code
6‑L | PLYPHRM | Poly-supplier Alert Poly-pharmacy Alert | Act Code
5‑S | DOSE | Dosage problem | Act Code
6‑L | DOSECOND | dosage-condition alert | Act Code
6‑S | DOSEDUR | Dose-Duration Alert | Act Code
7‑S | DOSEDURH | Dose-Duration High Alert | Act Code
8‑L | DOSEDURHIND | Dose-Duration High for Indication Alert | Act Code
7‑S | DOSEDURL | Dose-Duration Low Alert | Act Code
8‑L | DOSEDURLIND | Dose-Duration Low for Indication Alert | Act Code
6‑S | DOSEH | High Dose Alert | Act Code
7‑L | DOSEHINDA | High Dose for Age Alert | Act Code
7‑L | DOSEHIND | High Dose for Indication Alert | Act Code
7‑L | DOSEHINDSA | High Dose for Height/Surface Area Alert | Act Code
7‑L | DOSEHINDW | High Dose for Weight Alert | Act Code
6‑S | DOSEIVL | Dose-Interval Alert | Act Code
7‑L | DOSEIVLIND | Dose-Interval for Indication Alert | Act Code
6‑S | DOSEL | Low Dose Alert | Act Code
7‑L | DOSELINDA | Low Dose for Age Alert | Act Code
7‑L | DOSELIND | Low Dose for Indication Alert | Act Code
7‑L | DOSELINDSA | Low Dose for Height/Surface Area Alert | Act Code
7‑L | DOSELINDW | Low Dose for Weight Alert | Act Code
6‑L | MDOSE | maximum dosage reached | Act Code
5‑S | OBSA | Observation Alert | Act Code
6‑S | AGE | Age Alert | Act Code
7‑L | ADALRT | adult alert | Act Code
7‑L | DOSEHINDA | High Dose for Age Alert | Act Code
7‑L | DOSELINDA | Low Dose for Age Alert | Act Code
7‑L | GEALRT | geriatric alert | Act Code
7‑L | PEALRT | pediatric alert | Act Code
6‑S | COND | Condition Alert | Act Code
7‑L | HGHT | HGHT | Act Code
7‑L | LACT | Lactation Alert | Act Code
7‑L | PREG | Pregnancy Alert | Act Code
7‑L | WGHT | WGHT | Act Code
6‑L | CREACT | common reaction alert | Act Code
6‑L | GEN | Genetic Alert | Act Code
6‑L | GEND | Gender Alert | Act Code
6‑L | LAB | Lab Alert | Act Code
6‑S | REACT | Reaction Alert | Act Code
7‑L | ALGY | Allergy Alert | Act Code
7‑L | INT | Intolerance Alert | Act Code
6‑S | RREACT | Related Reaction Alert | Act Code
7‑L | RALG | Related Allergy Alert | Act Code
7‑L | RAR | Related Prior Reaction Alert | Act Code
7‑L | RINT | Related Intolerance Alert | Act Code
5‑L | BUS | business constraint violation | Act Code
5‑S | CODE_INVAL | code is not valid | Act Code
6‑L | CODE_DEPREC | code has been deprecated | Act Code
5‑L | FORMAT | invalid format | Act Code
5‑L | ILLEGAL | illegal | Act Code
5‑S | LEN_RANGE | length out of range | Act Code
6‑L | LEN_LONG | length is too long | Act Code
6‑L | LEN_SHORT | length is too short | Act Code
5‑L | MISSCOND | conditional element missing | Act Code
5‑L | MISSMAND | mandatory element missing | Act Code
5‑L | NODUPS | duplicate values are not permitted | Act Code
5‑L | NOPERSIST | element will not be persisted | Act Code
5‑S | REP_RANGE | repetitions out of range | Act Code
6‑L | MAXOCCURS | repetitions above maximum | Act Code
6‑L | MINOCCURS | repetitions below minimum | Act Code
3‑A | _ActAdministrativeRuleDetectedIssueCode | ActAdministrativeRuleDetectedIssueCode | Act Code
4‑L | KEY204 | Unknown key identifier | Act Code
4‑L | KEY205 | Duplicate key identifier | Act Code
4‑L | KEY206 | non-matching identification | Act Code
4‑L | OBSOLETE | obsolete record returned | Act Code
2‑A | _ActSuppliedItemDetectedIssueCode | ActSuppliedItemDetectedIssueCode | Act Code
3‑A | _AdministrationDetectedIssueCode | AdministrationDetectedIssueCode | Act Code
4‑A | _AppropriatenessDetectedIssueCode | AppropriatenessDetectedIssueCode | Act Code
5‑A | _InteractionDetectedIssueCode | InteractionDetectedIssueCode | Act Code
6‑L | FOOD | Food Interaction Alert | Act Code
6‑S | TPROD | Therapeutic Product Alert | Act Code
7‑L | DRG | Drug Interaction Alert | Act Code
7‑L | NHP | Natural Health Product Alert | Act Code
7‑L | NONRX | Non-Prescription Interaction Alert | Act Code
5‑S | OBSA | Observation Alert | Act Code
6‑S | AGE | Age Alert | Act Code
7‑L | ADALRT | adult alert | Act Code
7‑L | DOSEHINDA | High Dose for Age Alert | Act Code
7‑L | DOSELINDA | Low Dose for Age Alert | Act Code
7‑L | GEALRT | geriatric alert | Act Code
7‑L | PEALRT | pediatric alert | Act Code
6‑S | COND | Condition Alert | Act Code
7‑L | HGHT | HGHT | Act Code
7‑L | LACT | Lactation Alert | Act Code
7‑L | PREG | Pregnancy Alert | Act Code
7‑L | WGHT | WGHT | Act Code
6‑L | CREACT | common reaction alert | Act Code
6‑L | GEN | Genetic Alert | Act Code
6‑L | GEND | Gender Alert | Act Code
6‑L | LAB | Lab Alert | Act Code
6‑S | REACT | Reaction Alert | Act Code
7‑L | ALGY | Allergy Alert | Act Code
7‑L | INT | Intolerance Alert | Act Code
6‑S | RREACT | Related Reaction Alert | Act Code
7‑L | RALG | Related Allergy Alert | Act Code
7‑L | RAR | Related Prior Reaction Alert | Act Code
7‑L | RINT | Related Intolerance Alert | Act Code
5‑L | PREVINEF | previously ineffective | Act Code
4‑S | COMPLY | Compliance Alert | Act Code
5‑S | DUPTHPY | Duplicate Therapy Alert | Act Code
6‑L | DUPTHPCLS | duplicate therapeutic alass alert | Act Code
6‑L | DUPTHPGEN | duplicate generic alert | Act Code
5‑L | ABUSE | commonly abused/misused alert | Act Code
5‑L | FRAUD | potential fraud | Act Code
5‑L | PLYDOC | Poly-orderer Alert | Act Code
5‑L | PLYPHRM | Poly-supplier Alert Poly-pharmacy Alert | Act Code
4‑L | DACT | drug action detected issue | Act Code
4‑S | DOSE | Dosage problem | Act Code
5‑L | DOSECOND | dosage-condition alert | Act Code
5‑S | DOSEDUR | Dose-Duration Alert | Act Code
6‑S | DOSEDURH | Dose-Duration High Alert | Act Code
7‑L | DOSEDURHIND | Dose-Duration High for Indication Alert | Act Code
6‑S | DOSEDURL | Dose-Duration Low Alert | Act Code
7‑L | DOSEDURLIND | Dose-Duration Low for Indication Alert | Act Code
5‑S | DOSEH | High Dose Alert | Act Code
6‑L | DOSEHINDA | High Dose for Age Alert | Act Code
6‑L | DOSEHIND | High Dose for Indication Alert | Act Code
6‑L | DOSEHINDSA | High Dose for Height/Surface Area Alert | Act Code
6‑L | DOSEHINDW | High Dose for Weight Alert | Act Code
5‑S | DOSEIVL | Dose-Interval Alert | Act Code
6‑L | DOSEIVLIND | Dose-Interval for Indication Alert | Act Code
5‑S | DOSEL | Low Dose Alert | Act Code
6‑L | DOSELINDA | Low Dose for Age Alert | Act Code
6‑L | DOSELIND | Low Dose for Indication Alert | Act Code
6‑L | DOSELINDSA | Low Dose for Height/Surface Area Alert | Act Code
6‑L | DOSELINDW | Low Dose for Weight Alert | Act Code
5‑L | MDOSE | maximum dosage reached | Act Code
4‑S | DUPTHPY | Duplicate Therapy Alert | Act Code
5‑L | DUPTHPCLS | duplicate therapeutic alass alert | Act Code
5‑L | DUPTHPGEN | duplicate generic alert | Act Code
4‑S | TIME | timing detected issue | Act Code
5‑L | ALRTENDLATE | end too late alert | Act Code
5‑L | ALRTSTRTLATE | start too late alert | Act Code
3‑A | _SupplyDetectedIssueCode | SupplyDetectedIssueCode | Act Code
4‑L | ALLDONE | already performed | Act Code
4‑S | FULFIL | fulfillment alert | Act Code
5‑L | NOTACTN | no longer actionable | Act Code
5‑S | NOTEQUIV | not equivalent alert | Act Code
6‑L | NOTEQUIVGEN | not generically equivalent alert | Act Code
6‑L | NOTEQUIVTHER | not therapeutically equivalent alert | Act Code
5‑S | TIMING | event timing incorrect alert | Act Code
6‑L | INTERVAL | outside requested time | Act Code
6‑L | MINFREQ | too soon within frequency based on the usage | Act Code
4‑L | HELD | held/suspended alert | Act Code
4‑L | TOOLATE | Refill Too Late Alert | Act Code
4‑L | TOOSOON | Refill Too Soon Alert | Act Code
3‑L | HISTORIC | record recorded as historical | Act Code
3‑S | PATPREF | violates stated preferences | Act Code
4‑L | PATPREFALT | violates stated preferences, alternate available | Act Code
1‑L | KSUBJ | knowledge subject | Act Code
1‑L | KSUBT | knowledge subtopic | Act Code
1‑S | OINT | intolerance | Act Code
2‑S | ALG | Allergy | Act Code
3‑L | DALG | Drug Allergy | Act Code
3‑L | EALG | Environmental Allergy | Act Code
3‑L | FALG | Food Allergy | Act Code
2‑S | DINT | Drug Intolerance | Act Code
3‑L | DALG | Drug Allergy | Act Code
3‑L | DNAINT | Drug Non-Allergy Intolerance | Act Code
2‑S | EINT | Environmental Intolerance | Act Code
3‑L | EALG | Environmental Allergy | Act Code
3‑L | ENAINT | Environmental Non-Allergy Intolerance | Act Code
2‑S | FINT | Food Intolerance | Act Code
3‑L | FALG | Food Allergy | Act Code
3‑L | FNAINT | Food Non-Allergy Intolerance | Act Code
2‑S | NAINT | Non-Allergy Intolerance | Act Code
3‑L | DNAINT | Drug Non-Allergy Intolerance | Act Code
3‑L | ENAINT | Environmental Non-Allergy Intolerance | Act Code
3‑L | FNAINT | Food Non-Allergy Intolerance | Act Code
1‑L | SEV | Severity Observation | Act Code
1‑L | ADMDX | admitting diagnosis | Act Code
1‑L | DISDX | discharge diagnosis | Act Code
1‑L | INTDX | intermediate diagnosis | Act Code
1‑L | NOI | nature of injury | Act Code
1‑A | _ECGObservationSeriesType | ECGObservationSeriesType | Act Code
2‑L | REPRESENTATIVE_BEAT | ECG representative beat waveforms | Act Code
2‑L | RHYTHM | ECG rhythm waveforms | Act Code
1‑L | TIME_ABSOLUTE | absolute time sequence | Act Code
1‑L | TIME_RELATIVE | relative time sequence | Act Code
1‑S | _ActPatientAnnotationType | ActPatientAnnotationType | Act Code
2‑L | ANNDI | diagnostic image note | Act Code
2‑L | ANNGEN | general note | Act Code
2‑L | ANNIMM | immunization note | Act Code
2‑L | ANNLAB | laboratory note | Act Code
2‑L | ANNMED | medication note | Act Code
0‑S | OINT | intolerance | Act Code
1‑S | ALG | Allergy | Act Code
1‑S | DINT | Drug Intolerance | Act Code
1‑S | EINT | Environmental Intolerance | Act Code
1‑S | FINT | Food Intolerance | Act Code
1‑S | NAINT | Non-Allergy Intolerance | Act Code
0‑A | _ObservationIssueTriggerCodedObservationType | ObservationIssueTriggerCodedObservationType | Act Code
1‑A | _CaseTransmissionMode | case transmission mode | Act Code
0‑L | REP_HALF_LIFE | representative half-life | Act Code
0‑L | SPLCOATING | coating | Act Code
0‑L | SPLCOLOR | color | Act Code
0‑L | SPLIMAGE | image | Act Code
0‑L | SPLIMPRINT | imprint | Act Code
0‑L | SPLSCORING | scoring | Act Code
0‑L | SPLSHAPE | shape | Act Code
0‑L | SPLSIZE | size | Act Code
0‑L | SPLSYMBOL | symbol | Act Code
0‑L | 21611-9 | age patient qn est | Act Code
0‑L | 21612-7 | age patient qn reported | Act Code
0‑L | 29553-5 | age patient qn calc | Act Code
0‑L | 30525-0 | age patient qn definition | Act Code
0‑L | 30972-4 | age at onset of adverse event | Act Code
0‑A | _GeneticObservationType | GeneticObservationType | Act Code
1‑L | GENE | gene | Act Code
Legenda: Type L=leaf, S=specializable, A=abstract, D=deprecated. NullFlavor OTH (other) suggests text in originalText. HL7 V3: NullFlavors to appear in @nullFlavor attribute instead of @code.
This value set is an intensional definition that is defined by filters and rules rather than listing codes explicitly.
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