MyHealth@EU Core
1.0.0 - trial-use 150

MyHealth@EU Core - Local Development build (v1.0.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

## ValueSet: eHDSI Medication Status Reason With Exceptions

Official URL: http://fhir.ehdsi.eu/core/ValueSet/eHDSIMedicationStatusReasonWithExceptions | Version: 1.0.0
Standards status: Trial-use | Maturity Level: 2 | Computable Name: EHDSIMedicationStatusReasonWithExceptions

The Value Set is used for coding reasons for the current state of the medication used. It also includes exceptional values.

References

- MedicationRequest (Core)
- MedicationStatement (Core)

### Logical Definition (CLD)

This value set includes codes based on the following rules:

- Import all the codes that are contained in eHDSI Medication Status Reason
- Import all the codes that are contained in eHDSI Exceptional Value

### Expansion

Expansion from tx.fhir.org based on:

- SNOMED CT International edition 01-Feb 2025
- codesystem NullFlavor v3.0.0 (CodeSystem)
- valueset eHDSI Exceptional Value v9.1.0 (ValueSet)
- valueset eHDSI Medication Status Reason v9.1.0 (ValueSet)

This value set contains 240 concepts

System | Code | Display (en) | Definition | JSON | XML
`http://snomed.info/sct` | 106511000119106 | Long-term current use of mycophenolate |  |  |
`http://snomed.info/sct` | 106521000119104 | Long-term current use of cyclophosphamide |  |  |
`http://snomed.info/sct` | 106531000119101 | Long-term current use of penicillamine |  |  |
`http://snomed.info/sct` | 106571000119103 | Long-term current use of sulfasalazine |  |  |
`http://snomed.info/sct` | 106581000119100 | Long-term current use of cyclosporine |  |  |
`http://snomed.info/sct` | 106631000119102 | Long-term current use of infliximab |  |  |
`http://snomed.info/sct` | 106691000119103 | Long-term current use of etanercept |  |  |
`http://snomed.info/sct` | 106701000119103 | Long-term current use of leflunomide |  |  |
`http://snomed.info/sct` | 11012701000119107 | Long-term current use of antibiotics for prevention of recurrent infection |  |  |
`http://snomed.info/sct` | 11012741000119109 | Long-term current use of certolizumab pegol |  |  |
`http://snomed.info/sct` | 11281000175101 | Platelet aggregation inhibitor therapy declined |  |  |
`http://snomed.info/sct` | 113481000119108 | Long-term current use of tamoxifen |  |  |
`http://snomed.info/sct` | 113491000119106 | Long-term current use of deferasirox |  |  |
`http://snomed.info/sct` | 113521000119108 | Long term current use of adalimumab therapy |  |  |
`http://snomed.info/sct` | 113531000119106 | Long term current use of abatacept |  |  |
`http://snomed.info/sct` | 113541000119102 | Long-term current use of rituximab |  |  |
`http://snomed.info/sct` | 117431000119101 | Long term current use of drug therapy for attention deficit hyperactivity disorder |  |  |
`http://snomed.info/sct` | 118901000119102 | Long-term current use of erythropoiesis stimulating therapy |  |  |
`http://snomed.info/sct` | 118911000119104 | Long-term current use of lenalidomide |  |  |
`http://snomed.info/sct` | 118921000119106 | Long-term current use of clozapine |  |  |
`http://snomed.info/sct` | 118931000119109 | Long-term current use of intravenous immune globulin |  |  |
`http://snomed.info/sct` | 122621000119109 | Prophylactic anticoagulation given |  |  |
`http://snomed.info/sct` | 12275951000119104 | History of opiate therapy |  |  |
`http://snomed.info/sct` | 123371000119105 | Prophylactic aromatase inhibitors given |  |  |
`http://snomed.info/sct` | 12371000175103 | Drug treatment stopped patient ran out of medication |  |  |
`http://snomed.info/sct` | 12384021000119106 | Long-term current use of mercaptopurine |  |  |
`http://snomed.info/sct` | 123971000119106 | Long-term current use of acitretin |  |  |
`http://snomed.info/sct` | 123981000119109 | Long-term current use of isotretinoin |  |  |
`http://snomed.info/sct` | 125211000119106 | History of antineoplastic chemotherapy |  |  |
`http://snomed.info/sct` | 1269470004 | Missed dose |  |  |
`http://snomed.info/sct` | 126951000119109 | Long-term current use of lithium |  |  |
`http://snomed.info/sct` | 127721000119100 | Long-term current use of testosterone cypionate |  |  |
`http://snomed.info/sct` | 130721000119103 | Long-term current use of golimumab |  |  |
`http://snomed.info/sct` | 131531000119103 | Long-term current use of aspirin |  |  |
`http://snomed.info/sct` | 133621000119103 | Long term current use of non-steroidal anti-inflammatory drug |  |  |
`http://snomed.info/sct` | 134390006 | Angiotensin converting enzyme inhibitor not indicated |  |  |
`http://snomed.info/sct` | 134397009 | Angiotensin converting enzyme inhibitor declined |  |  |
`http://snomed.info/sct` | 1345106003 | Drug therapy discontinued due to pregnancy planning |  |  |
`http://snomed.info/sct` | 134651000119108 | History of estrogen therapy |  |  |
`http://snomed.info/sct` | 134671000119104 | History of systemic steroid therapy |  |  |
`http://snomed.info/sct` | 135794007 | Drug indicated |  |  |
`http://snomed.info/sct` | 135795008 | Nitrate indicated |  |  |
`http://snomed.info/sct` | 135796009 | Calcium channel blocker indicated |  |  |
`http://snomed.info/sct` | 135798005 | Diuretic indicated |  |  |
`http://snomed.info/sct` | 135799002 | Angiotensin converting enzyme inhibitor indicated |  |  |
`http://snomed.info/sct` | 135800003 | Aspirin indicated |  |  |
`http://snomed.info/sct` | 135801004 | Beta blocker indicated |  |  |
`http://snomed.info/sct` | 135803001 | Warfarin indicated |  |  |
`http://snomed.info/sct` | 139181000119106 | Long-term current use of amiodarone |  |  |
`http://snomed.info/sct` | 140301000119107 | Long-term current use of hydroxychloroquine |  |  |
`http://snomed.info/sct` | 140561000119102 | Long-term current use of azathioprine |  |  |
`http://snomed.info/sct` | 141381000119105 | Long-term current use of ambrisentan |  |  |
`http://snomed.info/sct` | 150881000119107 | Long-term current use of postmenopausal hormone replacement therapy |  |  |
`http://snomed.info/sct` | 152741000146103 | Medication spat out by patient |  |  |
`http://snomed.info/sct` | 15625371000119108 | Long-term current use of ustekinumab |  |  |
`http://snomed.info/sct` | 15625411000119109 | Long-term current use of apremilast |  |  |
`http://snomed.info/sct` | 15625451000119105 | Long-term current use of tofacitinib |  |  |
`http://snomed.info/sct` | 15929341000119102 | Long-term current use of antipsychotic medication |  |  |
`http://snomed.info/sct` | 15929381000119107 | Long-term current use of anxiolytic medication |  |  |
`http://snomed.info/sct` | 15929421000119103 | Long-term current use of antiviral agent |  |  |
`http://snomed.info/sct` | 15929461000119108 | Long-term current use of leuprorelin |  |  |
`http://snomed.info/sct` | 15929581000119100 | Long-term current use of antidepressant medication |  |  |
`http://snomed.info/sct` | 161646004 | H/O: high risk medication |  |  |
`http://snomed.info/sct` | 161647008 | H/O: anticoagulant therapy |  |  |
`http://snomed.info/sct` | 161648003 | H/O: steroid therapy |  |  |
`http://snomed.info/sct` | 161649006 | H/O: insulin therapy |  |  |
`http://snomed.info/sct` | 161650006 | H/O: anticonvulsant therapy |  |  |
`http://snomed.info/sct` | 161652003 | H/O: hormone replacement (HRT) |  |  |
`http://snomed.info/sct` | 161653008 | H/O: chemotherapy |  |  |
`http://snomed.info/sct` | 16234971000119108 | Long-term current use of diuretic |  |  |
`http://snomed.info/sct` | 16526761000119100 | Long-term current use of secukinumab |  |  |
`http://snomed.info/sct` | 16659291000119100 | Long-term current use of levothyroxine |  |  |
`http://snomed.info/sct` | 16716541000119101 | Long-term current use of oral hypoglycaemic agent |  |  |
`http://snomed.info/sct` | 16755631000119109 | Long-term current use of natalizumab |  |  |
`http://snomed.info/sct` | 16755671000119107 | Long-term current use of mesalamine |  |  |
`http://snomed.info/sct` | 16772161000119102 | Long-term current use of vedolizumab |  |  |
`http://snomed.info/sct` | 16772201000119107 | Long-term current use of everolimus |  |  |
`http://snomed.info/sct` | 16863441000119108 | Long-term current use of stimulant |  |  |
`http://snomed.info/sct` | 16863481000119103 | Long-term current use of benzodiazepine |  |  |
`http://snomed.info/sct` | 16890821000119107 | Long-term current use of ixekizumab |  |  |
`http://snomed.info/sct` | 170622002 | Oral steroids started |  |  |
`http://snomed.info/sct` | 170624001 | Oral steroids stopped |  |  |
`http://snomed.info/sct` | 170688000 | Lithium stopped |  |  |
`http://snomed.info/sct` | 170689008 | Injectable phenothiazine stopped |  |  |
`http://snomed.info/sct` | 170919001 | Warfarin therapy stopped |  |  |
`http://snomed.info/sct` | 170920007 | Warfarin therapy started |  |  |
`http://snomed.info/sct` | 170954008 | HRT contraindicated |  |  |
`http://snomed.info/sct` | 170955009 | HRT started |  |  |
`http://snomed.info/sct` | 170958006 | HRT stopped |  |  |
`http://snomed.info/sct` | 174236121000119109 | Long-term current use of baricitinib |  |  |
`http://snomed.info/sct` | 182834008 | Drug course completed |  |  |
`http://snomed.info/sct` | 182840001 | Drug treatment stopped - medical advice |  |  |
`http://snomed.info/sct` | 182841002 | Dr stopped drugs - ineffective |  |  |
`http://snomed.info/sct` | 182842009 | Doctor stopped drugs - side effect |  |  |
`http://snomed.info/sct` | 182843004 | Dr stopped drugs -inconvenient |  |  |
`http://snomed.info/sct` | 182844005 | Doctor stopped drugs - patient dislikes |  |  |
`http://snomed.info/sct` | 182845006 | Doctor stopped drugs - avoid interaction |  |  |
`http://snomed.info/sct` | 182846007 | Doctor stopped drugs - medical aim achieved |  |  |
`http://snomed.info/sct` | 182862001 | Drug not taken - dislike taste |  |  |
`http://snomed.info/sct` | 182863006 | Drug not taken - dislike form |  |  |
`http://snomed.info/sct` | 182864000 | Drug not taken - side-effects |  |  |
`http://snomed.info/sct` | 182865004 | Drug not taken - inconvenient |  |  |
`http://snomed.info/sct` | 182868002 | Treatment stopped - alternative therapy undertaken |  |  |
`http://snomed.info/sct` | 182869005 | Drug not taken - patient lost tablets |  |  |
`http://snomed.info/sct` | 182870006 | Drug discontinued - reason unknown |  |  |
`http://snomed.info/sct` | 182871005 | Drug discontinued - patient fear/risk |  |  |
`http://snomed.info/sct` | 182872003 | Drug discontinued - too expensive |  |  |
`http://snomed.info/sct` | 182873008 | Drug treatment stopped - patient ran out of tablets |  |  |
`http://snomed.info/sct` | 182874002 | Treatment stopped - patient unable to concentrate |  |  |
`http://snomed.info/sct` | 21651000175103 | Antibiotic prophylaxis declined |  |  |
`http://snomed.info/sct` | 21681000175107 | Antihypertensive therapy declined |  |  |
`http://snomed.info/sct` | 236894121000119100 | Long term current use of canakinumab therapy |  |  |
`http://snomed.info/sct` | 253099801000119101 | Long term current use of mepolizumab |  |  |
`http://snomed.info/sct` | 266710000 | Drugs not taken/completed |  |  |
`http://snomed.info/sct` | 266711001 | Drug not taken - problem swallowing |  |  |
`http://snomed.info/sct` | 274512008 | Drug therapy discontinued |  |  |
`http://snomed.info/sct` | 275929009 | Tablets too large to swallow |  |  |
`http://snomed.info/sct` | 279505881000119107 | Long-term current use of intranasal steroid |  |  |
`http://snomed.info/sct` | 309632008 | Thyroxine treatment started |  |  |
`http://snomed.info/sct` | 309841001 | Thyroxine treatment stopped |  |  |
`http://snomed.info/sct` | 312451002 | Aspirin prophylaxis contra-indicated |  |  |
`http://snomed.info/sct` | 315020006 | Beta blocker therapy refused |  |  |
`http://snomed.info/sct` | 315022003 | Nicotine replacement therapy refused |  |  |
`http://snomed.info/sct` | 315023008 | Aspirin prophylaxis refused |  |  |
`http://snomed.info/sct` | 315062004 | Beta blocker contraindicated |  |  |
`http://snomed.info/sct` | 315364008 | Angiotensin converting enzyme inhibitors contraindicated |  |  |
`http://snomed.info/sct` | 315604002 | Missed contraceptive pill |  |  |
`http://snomed.info/sct` | 328941000119101 | Long-term current use of bisphosphonates |  |  |
`http://snomed.info/sct` | 329061000119105 | Long-term current use of belimumab |  |  |
`http://snomed.info/sct` | 329071000119104 | Long-term current use of tocilizumab |  |  |
`http://snomed.info/sct` | 347841000119106 | Long-term current use of cannabis |  |  |
`http://snomed.info/sct` | 379562701000119103 | History of testosterone therapy |  |  |
`http://snomed.info/sct` | 390914001 | Thrombolytic therapy refused |  |  |
`http://snomed.info/sct` | 391158008 | Antibiotic prophylaxis recommended |  |  |
`http://snomed.info/sct` | 391159000 | Antibiotic prophylaxis not recommended |  |  |
`http://snomed.info/sct` | 394888000 | Hormone replacement therapy requested |  |  |
`http://snomed.info/sct` | 394987009 | Angiotensin II receptor antagonists contraindicated |  |  |
`http://snomed.info/sct` | 395006008 | Medication stopped - interaction |  |  |
`http://snomed.info/sct` | 395007004 | Medication stopped - ineffective |  |  |
`http://snomed.info/sct` | 395008009 | Medication stopped - contra-indication |  |  |
`http://snomed.info/sct` | 395009001 | Medication stopped - side effect |  |  |
`http://snomed.info/sct` | 395176007 | Bupropion refused |  |  |
`http://snomed.info/sct` | 401084003 | Angiotensin II receptor antagonist declined |  |  |
`http://snomed.info/sct` | 401244004 | H/O: prolonged corticosteroid therapy |  |  |
`http://snomed.info/sct` | 405165221000119107 | Long-term current use of belantamab mafodotin |  |  |
`http://snomed.info/sct` | 407572003 | Angiotensin II receptor antagonist not indicated |  |  |
`http://snomed.info/sct` | 408339001 | Thrombolysis therapy not indicated |  |  |
`http://snomed.info/sct` | 408354007 | Drug treatment still needed |  |  |
`http://snomed.info/sct` | 408355008 | Drug treatment no longer needed |  |  |
`http://snomed.info/sct` | 408795007 | Vitamin K prophylaxis declined |  |  |
`http://snomed.info/sct` | 412782003 | Inappropriate medication stopped |  |  |
`http://snomed.info/sct` | 413555000 | Antibiotic prophylaxis indicated |  |  |
`http://snomed.info/sct` | 413558003 | Anticoagulation contraindicated |  |  |
`http://snomed.info/sct` | 413559006 | Anticoagulation declined |  |  |
`http://snomed.info/sct` | 413560001 | Anticoagulation not indicated |  |  |
`http://snomed.info/sct` | 416126007 | Bisphosphonates declined |  |  |
`http://snomed.info/sct` | 416404000 | Angiotensin converting enzyme inhibitor target dose not achieved |  |  |
`http://snomed.info/sct` | 416702871000119106 | Long-term current use of sarilumab |  |  |
`http://snomed.info/sct` | 417576009 | Deferred antibiotic therapy |  |  |
`http://snomed.info/sct` | 430279008 | Drug treatment stopped at end of clinical trial |  |  |
`http://snomed.info/sct` | 434611000124106 | Maternal antenatal administration of corticosteroids for fetal lung maturation |  |  |
`http://snomed.info/sct` | 438553004 | History of drug therapy |  |  |
`http://snomed.info/sct` | 439631004 | History of statin therapy |  |  |
`http://snomed.info/sct` | 440935004 | History of beta adrenoceptor blocking therapy |  |  |
`http://snomed.info/sct` | 440991005 | History of nitrate therapy |  |  |
`http://snomed.info/sct` | 441195008 | H/O: angiotensin converting enzyme (ACE) inhibitor therapy |  |  |
`http://snomed.info/sct` | 441196009 | History of angiotensin II receptor antagonist therapy |  |  |
`http://snomed.info/sct` | 441899004 | History of therapy with ototoxic medication |  |  |
`http://snomed.info/sct` | 473151000 | History of tuberculosis chemotherapy |  |  |
`http://snomed.info/sct` | 483574341000119108 | Long-term current use of upadacitinib |  |  |
`http://snomed.info/sct` | 53081000119101 | Long-term current use of testosterone replacement therapy |  |  |
`http://snomed.info/sct` | 548197911000119104 | Long-term current use of proton pump inhibitor therapy |  |  |
`http://snomed.info/sct` | 564231491000119106 | Long term current use of voclosporin |  |  |
`http://snomed.info/sct` | 584833311000119102 | Long-term current use of guselkumab |  |  |
`http://snomed.info/sct` | 61251000119108 | Long-term current use of tacrolimus |  |  |
`http://snomed.info/sct` | 61261000119105 | Long-term current use of sirolimus |  |  |
`http://snomed.info/sct` | 672601000119103 | Long-term current use of auranofin |  |  |
`http://snomed.info/sct` | 672611000119100 | Long-term current use of telaprevir |  |  |
`http://snomed.info/sct` | 686976671000119100 | History of human immunodeficiency virus pre-exposure prophylaxis |  |  |
`http://snomed.info/sct` | 69521000119101 | Long-term current use of thyroid hormone replacement therapy |  |  |
`http://snomed.info/sct` | 698428006 | Angiotensin II receptor antagonist indicated |  |  |
`http://snomed.info/sct` | 698449007 | Antibiotic therapy indicated |  |  |
`http://snomed.info/sct` | 698459008 | Antidepressant drug treatment stopped |  |  |
`http://snomed.info/sct` | 698460003 | Antiviral therapy declined |  |  |
`http://snomed.info/sct` | 698468005 | Bisoprolol contraindicated |  |  |
`http://snomed.info/sct` | 698758004 | Nebivolol therapy refused |  |  |
`http://snomed.info/sct` | 699008007 | History of fenfluramine therapy |  |  |
`http://snomed.info/sct` | 699137009 | Carvedilol therapy declined |  |  |
`http://snomed.info/sct` | 700110004 | Bisphosphonate prophylaxis suspended |  |  |
`http://snomed.info/sct` | 700384008 | Antibiotic prophylaxis not indicated |  |  |
`http://snomed.info/sct` | 702542006 | Incretin mimetic therapy started |  |  |
`http://snomed.info/sct` | 703989007 | Teriparatide therapy declined |  |  |
`http://snomed.info/sct` | 703991004 | Raloxifene therapy declined |  |  |
`http://snomed.info/sct` | 703996009 | Teriparatide not indicated |  |  |
`http://snomed.info/sct` | 703997000 | Teriparatide contraindicated |  |  |
`http://snomed.info/sct` | 703999002 | Raloxifene contraindicated |  |  |
`http://snomed.info/sct` | 704000000 | Raloxifene not indicated |  |  |
`http://snomed.info/sct` | 704033005 | Phosphodiesterase 5 inhibitor not indicated |  |  |
`http://snomed.info/sct` | 704047009 | Phosphodiesterase 5 inhibitor declined |  |  |
`http://snomed.info/sct` | 707298000 | Phosphodiesterase-5 inhibitor contraindicated |  |  |
`http://snomed.info/sct` | 70732231000132107 | Duplicate drug therapy stopped |  |  |
`http://snomed.info/sct` | 708000007 | Insulin treatment stopped |  |  |
`http://snomed.info/sct` | 710159007 | Long-term current use of immunosuppressive drug |  |  |
`http://snomed.info/sct` | 710814002 | Long-term current use of drug therapy |  |  |
`http://snomed.info/sct` | 710815001 | Long-term current use of insulin |  |  |
`http://snomed.info/sct` | 710816000 | Long-term current use of steroid |  |  |
`http://snomed.info/sct` | 710817009 | Long-term current use of inhaled steroid |  |  |
`http://snomed.info/sct` | 711149003 | Long-term current use of antibiotic |  |  |
`http://snomed.info/sct` | 711150003 | Long-term current use of anticoagulant |  |  |
`http://snomed.info/sct` | 711370000 | Oral steroids used since last encounter |  |  |
`http://snomed.info/sct` | 711436000 | Inhaled steroids used daily |  |  |
`http://snomed.info/sct` | 720971004 | Insulin declined |  |  |
`http://snomed.info/sct` | 721872002 | Antifungal therapy indicated |  |  |
`http://snomed.info/sct` | 721912451000119106 | Long-term current use of risankizumab |  |  |
`http://snomed.info/sct` | 726806751000119107 | Long-term current use of antimetabolite |  |  |
`http://snomed.info/sct` | 736004008 | Nebivolol contraindicated |  |  |
`http://snomed.info/sct` | 736006005 | Carvedilol contraindicated |  |  |
`http://snomed.info/sct` | 736799004 | Beta blocker target dose not achieved |  |  |
`http://snomed.info/sct` | 7611000175100 | Dipyridamole contraindicated |  |  |
`http://snomed.info/sct` | 763323007 | Hormone replacement therapy refused |  |  |
`http://snomed.info/sct` | 763897009 | Antineoplastic chemotherapy regimen refused |  |  |
`http://snomed.info/sct` | 764639002 | Antidepressant drug treatment started |  |  |
`http://snomed.info/sct` | 768231311000119101 | Long-term current use of calcineurin inhibitor |  |  |
`http://snomed.info/sct` | 787928003 | Coagulation factor Xa inhibitor prophylaxis indicated |  |  |
`http://snomed.info/sct` | 787930001 | Direct thrombin inhibitor prophylaxis indicated |  |  |
`http://snomed.info/sct` | 821378911000119105 | Long term current use of avacopan |  |  |
`http://snomed.info/sct` | 824522871000119100 | History of chimeric antigen receptor T-cell immunotherapy |  |  |
`http://snomed.info/sct` | 836671891000119108 | Long-term current use of belatacept |  |  |
`http://snomed.info/sct` | 840596001 | History of platelet aggregation inhibitor therapy |  |  |
`http://snomed.info/sct` | 840597005 | Long term dual platelet aggregation inhibitor therapy indicated |  |  |
`http://snomed.info/sct` | 840598000 | Platelet aggregation inhibitor therapy contraindicated |  |  |
`http://snomed.info/sct` | 897019004 | Antiviral prophylaxis recommended |  |  |
`http://snomed.info/sct` | 897020005 | Antifungal prophylaxis recommended |  |  |
`http://snomed.info/sct` | 897021009 | Antifungal prophylaxis not recommended |  |  |
`http://snomed.info/sct` | 897022002 | Antiviral prophylaxis not recommended |  |  |
`http://snomed.info/sct` | 972426521000119100 | Long term current use of anifrolumab |  |  |
`http://snomed.info/sct` | 98001000119105 | Long-term current use of anticonvulsant |  |  |
`http://terminology.hl7.org/CodeSystem/v3-NullFlavor` | OTH | other | **Description:**The actual value is not a member of the set of permitted data values in the constrained value domain of a variable. (e.g., concept not provided by required code system). Usage Notes: This flavor and its specializations are most commonly used with the CD datatype and its flavors. However, it may apply to *any* datatype where the constraints of the type are tighter than can be conveyed. For example, a PQ that is for a true measured amount whose units are not supported in UCUM, a need to convey a REAL when the type has been constrained to INT, etc. With coded datatypes, this null flavor may only be used if the vocabulary binding has a coding strength of CNE. By definition, all local codes and original text are part of the value set if the coding strength is CWE. |  |
`http://terminology.hl7.org/CodeSystem/v3-NullFlavor` | UNK | unknown | **Description:**A proper value is applicable, but not known. Usage Notes: This means the actual value is not known. If the only thing that is unknown is how to properly express the value in the necessary constraints (value set, datatype, etc.), then the OTH or UNC flavor should be used. No properties should be included for a datatype with this property unless: Those properties themselves directly translate to a semantic of "unknown". (E.g. a local code sent as a translation that conveys 'unknown') Those properties further qualify the nature of what is unknown. (E.g. specifying a use code of "H" and a URL prefix of "tel:" to convey that it is the home phone number that is unknown.) |  |
`http://terminology.hl7.org/CodeSystem/v3-NullFlavor` | UNC | un-encoded | Description: The actual value has not yet been encoded within the approved value domain. Example: Original text or a local code has been specified but translation or encoding to the approved value set has not yet occurred due to limitations of the sending system. Original text has been captured for a PQ, but not attempt has been made to split the value and unit or to encode the unit in UCUM. Usage Notes: If it is known that it is not possible to encode the concept, OTH should be used instead. However, use of UNC does not necessarily guarantee the concept will be encodable, only that encoding has not been attempted. Data type properties such as original text and translations may be present when this null flavor is included. |  |

Explanation of the columns that may appear on this page:

Level | A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies
System | The source of the definition of the code (when the value set draws in codes defined elsewhere)
Code | The code (used as the code in the resource instance)
Display | The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application
Definition | An explanation of the meaning of the concept
Comments | Additional notes about how to use the code