| System | Code | Display | Comments |
|---|
 http://terminology.hl7.org/CodeSystem/v3-ActReason | _MedicationOrderAbortReasonCode | medication order abort reason | |
| http://terminology.hl7.org/CodeSystem/v3-ActReason | DISCONT | product discontinued | |
| http://terminology.hl7.org/CodeSystem/v3-ActReason | INEFFECT | ineffective | |
| http://terminology.hl7.org/CodeSystem/v3-ActReason | MONIT | response to monitoring | |
| http://terminology.hl7.org/CodeSystem/v3-ActReason | NOREQ | no longer required for treatment | |
| http://terminology.hl7.org/CodeSystem/v3-ActReason | NOTCOVER | not covered | |
| http://terminology.hl7.org/CodeSystem/v3-ActReason | PREFUS | patient refuse | |
| http://terminology.hl7.org/CodeSystem/v3-ActReason | RECALL | product recalled | |
| http://terminology.hl7.org/CodeSystem/v3-ActReason | REPLACE | change in order | |
| http://terminology.hl7.org/CodeSystem/v3-ActReason | DOSECHG | change in medication/dose | |
| http://terminology.hl7.org/CodeSystem/v3-ActReason | REPLACEFIX | error in order | |
| http://terminology.hl7.org/CodeSystem/v3-ActReason | UNABLE | unable to use | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | ISSUE | detected issue | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | _ActAdministrativeDetectedIssueCode | ActAdministrativeDetectedIssueCode | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | _ActAdministrativeAuthorizationDetectedIssueCode | ActAdministrativeAuthorizationDetectedIssueCode | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | NAT | Insufficient authorization | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | SUPPRESSED | record suppressed | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | VALIDAT | validation issue | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | KEY204 | Unknown key identifier | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | KEY205 | Duplicate key identifier | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | COMPLY | Compliance Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DUPTHPY | Duplicate Therapy Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DUPTHPCLS | duplicate therapeutic alass alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DUPTHPGEN | duplicate generic alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | ABUSE | commonly abused/misused alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | FRAUD | potential fraud | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | PLYDOC | Poly-orderer Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | PLYPHRM | Poly-supplier Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSE | Dosage problem | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSECOND | dosage-condition alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSEDUR | Dose-Duration Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSEDURH | Dose-Duration High Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSEDURHIND | Dose-Duration High for Indication Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSEDURL | Dose-Duration Low Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSEDURLIND | Dose-Duration Low for Indication Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSEH | High Dose Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSEHINDA | High Dose for Age Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSEHIND | High Dose for Indication Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSEHINDSA | High Dose for Height/Surface Area Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSEHINDW | High Dose for Weight Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSEIVL | Dose-Interval Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSEIVLIND | Dose-Interval for Indication Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSEL | Low Dose Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSELINDA | Low Dose for Age Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSELIND | Low Dose for Indication Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSELINDSA | Low Dose for Height/Surface Area Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DOSELINDW | Low Dose for Weight Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | MDOSE | maximum dosage reached | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | OBSA | Observation Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | AGE | Age Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | ADALRT | adult alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | GEALRT | geriatric alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | PEALRT | pediatric alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | COND | Condition Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | HGHT | | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | LACT | Lactation Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | PREG | Pregnancy Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | WGHT | | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | CREACT | common reaction alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | GEN | Genetic Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | GEND | Gender Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | LAB | Lab Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | REACT | Reaction Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | ALGY | Allergy Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | INT | Intolerance Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | RREACT | Related Reaction Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | RALG | Related Allergy Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | RAR | Related Prior Reaction Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | RINT | Related Intolerance Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | BUS | business constraint violation | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | CODE_INVAL | code is not valid | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | CODE_DEPREC | code has been deprecated | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | FORMAT | invalid format | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | ILLEGAL | illegal | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | LEN_RANGE | length out of range | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | LEN_LONG | length is too long | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | LEN_SHORT | length is too short | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | MISSCOND | conditional element missing | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | MISSMAND | mandatory element missing | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | NODUPS | duplicate values are not permitted | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | NOPERSIST | element will not be persisted | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | REP_RANGE | repetitions out of range | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | MAXOCCURS | repetitions above maximum | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | MINOCCURS | repetitions below minimum | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | _ActAdministrativeRuleDetectedIssueCode | ActAdministrativeRuleDetectedIssueCode | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | KEY206 | non-matching identification | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | OBSOLETE | obsolete record returned | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | _ActSuppliedItemDetectedIssueCode | ActSuppliedItemDetectedIssueCode | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | _AdministrationDetectedIssueCode | AdministrationDetectedIssueCode | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | _AppropriatenessDetectedIssueCode | AppropriatenessDetectedIssueCode | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | _InteractionDetectedIssueCode | InteractionDetectedIssueCode | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | FOOD | Food Interaction Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | TPROD | Therapeutic Product Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DRG | Drug Interaction Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | NHP | Natural Health Product Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | NONRX | Non-Prescription Interaction Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | PREVINEF | previously ineffective | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | DACT | drug action detected issue | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | TIME | timing detected issue | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | ALRTENDLATE | end too late alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | ALRTSTRTLATE | start too late alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | _DrugActionDetectedIssueCode | DrugActionDetectedIssueCode | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | _TimingDetectedIssueCode | TimingDetectedIssueCode | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | ENDLATE | End Too Late Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | STRTLATE | Start Too Late Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | _SupplyDetectedIssueCode | SupplyDetectedIssueCode | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | ALLDONE | already performed | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | FULFIL | fulfillment alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | NOTACTN | no longer actionable | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | NOTEQUIV | not equivalent alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | NOTEQUIVGEN | not generically equivalent alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | NOTEQUIVTHER | not therapeutically equivalent alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | TIMING | event timing incorrect alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | INTERVAL | outside requested time | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | MINFREQ | too soon within frequency based on the usage | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | HELD | held/suspended alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | TOOLATE | Refill Too Late Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | TOOSOON | Refill Too Soon Alert | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | HISTORIC | record recorded as historical | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | PATPREF | violates stated preferences | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | PATPREFALT | violates stated preferences, alternate available | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | _ActFinancialDetectedIssueCode | ActFinancialDetectedIssueCode | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | _ClinicalActionDetectedIssueCode | ClinicalActionDetectedIssueCode | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | CAREGAP | Caregap | |
| http://terminology.hl7.org/CodeSystem/v3-ActCode | CODINGGAP | Codinggap | |