Reference record for OID 2.16.840.1.113883.6.164

Parent

2.16.840.1.113883.6 (externalCodeSystems, ExternalCodeSystems)

Node code

164

Node names

mDREX
MDREX

Numeric OID

2.16.840.1.113883.6.164

URN notation

urn:oid:2.16.840.1.113883.6.164

ASN.1 notation

{2 16 840 1 113883 6 164}

{joint-iso-itu-t(2) country(16) us(840) organization(1) hl7(113883) externalCodeSystems(6) mDREX(164)}
{joint-iso-itu-t(2) country(16) us-joint(840) organization(1) hl7(113883) externalCodeSystems(6) mDREX(164)}
{joint-iso-ccitt(2) country(16) us(840) organization(1) hl7(113883) externalCodeSystems(6) mDREX(164)}
{joint-iso-ccitt(2) country(16) us-joint(840) organization(1) hl7(113883) externalCodeSystems(6) mDREX(164)}

OID-IRI notation

/2/16/840/1/113883/6/164
/Country/840/1/113883/6/164
/Joint-ISO-ITU-T/16/840/1/113883/6/164

Named path variants

/joint-iso-itu-t/country/us/organization/hl7/externalCodeSystems/mDREX
/joint-iso-itu-t/country/us/organization/hl7/externalCodeSystems/MDREX
/joint-iso-itu-t/country/us/organization/hl7/ExternalCodeSystems/mDREX
/joint-iso-itu-t/country/us/organization/hl7/ExternalCodeSystems/MDREX
/joint-iso-itu-t/country/us/organization/HL7/externalCodeSystems/mDREX
/joint-iso-itu-t/country/us/organization/HL7/externalCodeSystems/MDREX
/joint-iso-itu-t/country/us/organization/HL7/ExternalCodeSystems/mDREX
/joint-iso-itu-t/country/us/organization/HL7/ExternalCodeSystems/MDREX
/joint-iso-itu-t/country/us-joint/organization/hl7/externalCodeSystems/mDREX
/joint-iso-itu-t/country/us-joint/organization/hl7/externalCodeSystems/MDREX
/joint-iso-itu-t/country/us-joint/organization/hl7/ExternalCodeSystems/mDREX
/joint-iso-itu-t/country/us-joint/organization/hl7/ExternalCodeSystems/MDREX
/joint-iso-itu-t/country/us-joint/organization/HL7/externalCodeSystems/mDREX
/joint-iso-itu-t/country/us-joint/organization/HL7/externalCodeSystems/MDREX
/joint-iso-itu-t/country/us-joint/organization/HL7/ExternalCodeSystems/mDREX
/joint-iso-itu-t/country/us-joint/organization/HL7/ExternalCodeSystems/MDREX
Additional combinations skipped.

Descriptions

Descriptions may differ between sources. The primary description is shown first.

Primary description: OID Repository

Medical Dictionary for Regulatory Activities Terminology (MedDRA), expanded
View at oid-base.com

Medical Dictionary for Regulatory Activities Terminology (MedDRA), with expanded abbreviations, Version 7.0. Bethesda, MD: National Library of Medicine, March 1, 2004.

(Automatically extracted from the Health Level 7 OID Registry)

MDREX — HL7 Terminology

Medical Dictionary for Regulatory Activities Terminology (MedDRA), with expanded abbreviations, Version 7.0. Bethesda, MD: National Library of Medicine, March 1, 2004.

Source records

MDREX

Status in source: retired.

Names: MDREX

Technical details

{
  "url": "http://terminology.hl7.org/NamingSystem/MDREX",
  "date": "2021-11-09T10:00:00+10:00",
  "kind": "codesystem",
  "title": "MedDRA expanded",
  "status": "retired",
  "contact": [
    {
      "name": "MedDRA MSSO/ Northrop Grumman,MedDRA MSSO/ Northrop Grumman"
    }
  ],
  "version": "2.1.0",
  "publisher": "ICH",
  "responsible": "ICH",
  "resource_type": "NamingSystem",
  "oid_identifier": {
    "type": "oid",
    "value": "2.16.840.1.113883.6.164",
    "preferred": true
  },
  "other_identifiers": [
    {
      "type": "uri",
      "value": "http://terminology.hl7.org/CodeSystem/MDREX",
      "preferred": true
    }
  ]
}

HL7 Terminology · Publisher's source file: Source package: package.tgz · Download HL7 Terminology — complete terminology package (TGZ)
Source location: package/NamingSystem-MDREX.json#/uniqueId/0.
Source version and references

Downloaded: 2026-10-19T20:26:54.046133+00:00.

MDREX

Status in source: complete.

Names: MDREX

Technical details

{
  "organization": "MedDRA MSSO/ Northrop Grumman,MedDRA MSSO/ Northrop Grumman",
  "coding_system_name": "MedDRA expanded",
  "published_oid_type": "6"
}

HL7 International OID Registry · Publisher's source file: HL7 International OID Registry — all types, statuses and fields
HL7 report status: OID review is complete.
· Download HL7 International OID Registry — all types, statuses and fields
Source location: OID_Report.xml / OID_root[931] / Comp_OID 2.16.840.1.113883.6.164.
Source version and references

Downloaded: 2026-10-25T23:05:32.096080+00:00.

First Registration Authority (inferred from ancestor 2.16.840.1.113883)

W. Ted Klein

Current Registration Authority

Elizabeth A. D'Alelio

Address: 12011 Sunset Hills Rd, VAR1 7B52, Reston, VA 20190
United States (the)

Phone: +1703 345 7722

Direct children (1)

OID	Name	Direct children	Descendants	Description
2.16.840.1.113883.6.164.1	mDREA, MDREA	0	0	Medical Dictionary for Regulatory Activities Terminology (MedDRA), Am Engl expanded

Siblings (301)

OID	Name	Description
2.16.840.1.113883.6.308	fhir-logical-interactions	Fast Healthcare Interoperability Resources (FHIR) Logical Interactions (REST)
2.16.840.1.113883.6.309	fhir-data-absent-reason	Data Absent Reason
2.16.840.1.113883.6.310	uscic	US Census Industry Code
2.16.840.1.113883.6.311	multum-main-drug-code	Multum Main Drug Code
2.16.840.1.113883.6.312	multum-drug-synonym-id	Multum Drug Synonym Identifier
2.16.840.1.113883.6.313	multum-allergy-category-id	Multum Drug Allergy Category
2.16.840.1.113883.6.314	multum-drug-id	Multum Generic Drug Identifier
2.16.840.1.113883.6.315	lexiglobalid	Lexicomp Global Identifer
2.16.840.1.113883.6.316	rfc5646	Tags for Identifying Languages - RFC5646
2.16.840.1.113883.6.317	populatedPlacesGNIS
2.16.840.1.113883.6.318	clinVar-A
2.16.840.1.113883.6.319	ClinVarV, clinVar-V
2.16.840.1.113883.6.320	cosmic-Smpl
2.16.840.1.113883.6.321	cosmic-Strc
2.16.840.1.113883.6.322	dbVar-GL
2.16.840.1.113883.6.323	dbVar-Som
2.16.840.1.113883.6.324	ensembl-G
2.16.840.1.113883.6.325	ensembl-P
2.16.840.1.113883.6.326	ensembl-T
2.16.840.1.113883.6.327	gHGVS
2.16.840.1.113883.6.328	cHGVS
2.16.840.1.113883.6.329	pHGVS
2.16.840.1.113883.6.330	refSeq-G
2.16.840.1.113883.6.331	refSeq-P
2.16.840.1.113883.6.332	refSeq-T
2.16.840.1.113883.6.333	medgen-dis
2.16.840.1.113883.6.334	rxT-ingrd
2.16.840.1.113883.6.335	chrom-loc
2.16.840.1.113883.6.336	hgnc-symb
2.16.840.1.113883.6.337	lrg-refseq
2.16.840.1.113883.6.338	hl-pft
2.16.840.1.113883.6.339	HPO, hpo
2.16.840.1.113883.6.340	geneCodeNCBI
2.16.840.1.113883.6.341	hlaAllele
2.16.840.1.113883.6.342	starAllele
2.16.840.1.113883.6.343	issue-details
2.16.840.1.113883.6.344	dsm5
2.16.840.1.113883.6.345	MEDRT, medrt
2.16.840.1.113883.6.346	medispanKDC
2.16.840.1.113883.6.347	icd11
2.16.840.1.113883.6.348	icaoSex
2.16.840.1.113883.6.349	CMSHCC, cmshcc, cms-hcc
2.16.840.1.113883.6.350	USPSStateCodes, uspsStateCodes
2.16.840.1.113883.6.8159	ca-communicationbarrier
2.16.840.1.113883.6.8160	ca-messagechangereasoncode
2.16.840.1.113883.6.8161	ca-messageeventcode
2.16.840.1.113883.6.8162	ca-preferencetypecode
2.16.840.1.113883.6.8163	ca-referralbusinessstatus
2.16.840.1.113883.6.8164	ca-referralcommunicationcategory
2.16.840.1.113883.6.8165	ca-referralstatusreason