{2 16 840 1 113883 18 172}
Code system of concepts used to indicate whether the appointment resource may be substituted for another by the entity assigned to fulfill the appointment. Used in HL7 Version 2.x messaging in the AIS and AIG segments.
Status in source: complete.
Names: allowSubstitution
{
"organization": "HL7 International",
"coding_system_name": "Allow Substitution Codes",
"published_oid_type": "18"
}HL7 report status: OID review is complete.
· Download HL7 International OID Registry — all types, statuses and fieldsDownloaded: 2026-10-25T23:05:32.096080+00:00.
Status in source: active.
Names: AllowSubstitution, v2-0279
{
"url": "http://terminology.hl7.org/CodeSystem/v2-0279",
"date": "2019-12-01",
"title": "allowSubstitution",
"status": "active",
"contact": [
{
"telecom": [
{
"value": "http://hl7.org",
"system": "url"
},
{
"value": "hq@HL7.org",
"system": "email"
}
]
}
],
"purpose": "Underlying Master Code System for V2 table 0279 (Allow Substitution Codes)",
"version": "3.0.0",
"copyright": "This material derives from the HL7 Terminology (THO). THO is copyright ©1989+ Health Level Seven International and is made available under the CC0 designation. For more licensing information see: https://terminology.hl7.org/license.html",
"publisher": "Health Level Seven International",
"experimental": false,
"caseSensitive": true,
"compositional": false,
"resource_type": "CodeSystem",
"versionNeeded": false,
"oid_identifier": {
"value": "urn:oid:2.16.840.1.113883.18.172",
"system": "urn:ietf:rfc:3986"
},
"hierarchyMeaning": "is-a"
}Downloaded: 2026-10-19T20:26:54.046133+00:00.
| OID | Name | Direct children | Descendants | Description |
|---|---|---|---|---|
| 2.16.840.1.113883.18.51 | ResultStatus, v2-0123, resultStatus | 0 | 0 | |
| 2.16.840.1.113883.18.52 | TransportationMode, v2-0124, transportationMode | 0 | 0 | |
| 2.16.840.1.113883.18.53 | QuantityLimitedRequest, v2-0126, quantityLimitedRequest | 0 | 0 | |
| 2.16.840.1.113883.18.54 | AllergenType, v2-0127, allergenType | 0 | 0 | |
| 2.16.840.1.113883.18.55 | AllergySeverity, v2-0128, allergySeverity | 0 | 0 | |
| 2.16.840.1.113883.18.56 | VisitUserCodes, v2-0130, visitUserCodes | 0 | 0 | |
| 2.16.840.1.113883.18.57 | contactRole | 0 | 0 | |
| 2.16.840.1.113883.18.58 | ContactRole2, v2-0131, contactRole2 | 0 | 0 | |
| 2.16.840.1.113883.18.59 | ProcedurePractitionerIdentifierCodeType, v2-0133, procedurePractitionerIdentifierCodeType | 0 | 0 | |
| 2.16.840.1.113883.18.60 | AssignmentOfBenefits, v2-0135, assignmentOfBenefits | 0 | 0 | |
| 2.16.840.1.113883.18.61 | MailClaimParty, v2-0137, mailClaimParty | 0 | 0 | |
| 2.16.840.1.113883.18.62 | MilitaryService, v2-0140, militaryService | 0 | 0 | |
| 2.16.840.1.113883.18.63 | militaryRank-Grade | 0 | 0 | |
| 2.16.840.1.113883.18.64 | MilitaryStatus, v2-0142, militaryStatus | 0 | 0 | |
| 2.16.840.1.113883.18.65 | EligibilitySource, v2-0144, eligibilitySource | 0 | 0 | |
| 2.16.840.1.113883.18.66 | RoomType, v2-0145, roomType | 0 | 0 | |
| 2.16.840.1.113883.18.67 | AmountType, v2-0146, amountType | 0 | 0 | |
| 2.16.840.1.113883.18.68 | PolicyType, v2-0147, policyType | 0 | 0 | |
| 2.16.840.1.113883.18.69 | MoneyOrPercentageIndicator, v2-0148, moneyOrPercentageIndicator | 0 | 0 | |
| 2.16.840.1.113883.18.70 | DayType, v2-0149, dayType | 0 | 0 | |
| 2.16.840.1.113883.18.71 | CertificationPatientType, v2-0150, certificationPatientType | 0 | 0 | |
| 2.16.840.1.113883.18.73 | AcceptApplicationAcknowledgmentConditions, v2-0155, accept-applicationAcknowledgmentConditions | 0 | 0 | |
| 2.16.840.1.113883.18.74 | WhichDateTimeQualifier, v2-0156, whichDate-timeQualifier | 0 | 0 | |
| 2.16.840.1.113883.18.75 | WhichDateTimeStatusQualifier, v2-0157, whichDate-timeStatusQualifier | 0 | 0 | |
| 2.16.840.1.113883.18.76 | DateTimeSelectionQualifier, v2-0158, date-timeSelectionQualifier | 0 | 0 | |
| 2.16.840.1.113883.18.77 | DietCodeSpecificationType, v2-0159, dietCodeSpecificationType | 0 | 0 | |
| 2.16.840.1.113883.18.78 | TrayType, v2-0160, trayType | 0 | 0 | |
| 2.16.840.1.113883.18.79 | AllowSubstitution, v2-0161, allowSubstitution | 0 | 0 | |
| 2.16.840.1.113883.18.80 | RouteOfAdministration, v2-0162, routeOfAdministration | 0 | 0 | |
| 2.16.840.1.113883.18.81 | BodySite, v2-0163, bodySite | 0 | 0 | |
| 2.16.840.1.113883.18.82 | AdministrationDevice, v2-0164, administrationDevice | 0 | 0 | |
| 2.16.840.1.113883.18.83 | AdministrationMethod, v2-0165, administrationMethod | 0 | 0 | |
| 2.16.840.1.113883.18.84 | RxComponentType, v2-0166, rxComponentType | 0 | 0 | |
| 2.16.840.1.113883.18.85 | SubstitutionStatus, v2-0167, substitutionStatus | 0 | 0 | |
| 2.16.840.1.113883.18.86 | ProcessingPriority, v2-0168, processingPriority | 0 | 0 | |
| 2.16.840.1.113883.18.87 | ReportingPriority, v2-0169, reportingPriority | 0 | 0 | |
| 2.16.840.1.113883.18.88 | DerivedSpecimen, v2-0170, derivedSpecimen | 0 | 0 | |
| 2.16.840.1.113883.18.89 | CoordinationOfBenefits, v2-0173, coordinationOfBenefits | 0 | 0 | |
| 2.16.840.1.113883.18.90 | NatureOfServiceTestObservation, v2-0174, natureOfServiceTestObservation | 0 | 0 | |
| 2.16.840.1.113883.18.91 | MasterFileIdentifierCodes, v2-0175, masterFileIdentifierCodes | 0 | 0 | |
| 2.16.840.1.113883.18.92 | ConfidentialityCodes, v2-0177, confidentialityCodes | 0 | 0 | |
| 2.16.840.1.113883.18.93 | FileLevelEvent, v2-0178, file-levelEvent | 0 | 0 | |
| 2.16.840.1.113883.18.94 | ResponseLevel, v2-0179, responseLevel | 0 | 0 | |
| 2.16.840.1.113883.18.95 | MasterfileActionCode, v2-0180, masterfileActionCode | 0 | 0 | |
| 2.16.840.1.113883.18.96 | MfnRecordLevelErrorReturn, v2-0181, mfnRecord-levelErrorReturn | 0 | 0 | |
| 2.16.840.1.113883.18.97 | ActiveInactive, v2-0183, active-inactive | 0 | 0 | |
| 2.16.840.1.113883.18.98 | PreferredMethodOfContact, v2-0185, preferredMethodOfContact | 0 | 0 | |
| 2.16.840.1.113883.18.99 | ProviderBilling, v2-0187, providerBilling | 0 | 0 | |
| 2.16.840.1.113883.18.100 | EthnicGroup, v2-0189, ethnicGroup | 0 | 0 | |
| 2.16.840.1.113883.18.101 | AddressType, v2-0190, addressType | 0 | 0 |