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	Direct children	Descendants	Description
2.16.840.1.113883.6.198	MTHMST	2	2
2.16.840.1.113883.6.201	MTHPDQ	0	0
2.16.840.1.113883.6.202	MTHSCT	1	1
2.16.840.1.113883.6.204	NAN	0	0
2.16.840.1.113883.6.205	NCBI	0	0
2.16.840.1.113883.6.206	NCI	0	0
2.16.840.1.113883.6.207	NCISEER	0	0
2.16.840.1.113883.6.208	nddf, Nddf	0	0	National Drug Data File
2.16.840.1.113883.6.209	NDFRT	0	0
2.16.840.1.113883.6.210	NEU	0	0
2.16.840.1.113883.6.211	NLM-MED	0	0
2.16.840.1.113883.6.212	PCDS	0	0
2.16.840.1.113883.6.213	PDQ	0	0
2.16.840.1.113883.6.214	PPAC	0	0
2.16.840.1.113883.6.215	PSY	0	0
2.16.840.1.113883.6.216	QMR	0	0
2.16.840.1.113883.6.217	RAM	0	0
2.16.840.1.113883.6.220	RCDSY	2	2
2.16.840.1.113883.6.224	SPN	0	0
2.16.840.1.113883.6.226	ULT	0	0
2.16.840.1.113883.6.227	UMD	1	1
2.16.840.1.113883.6.228	UWDA	0	0
2.16.840.1.113883.6.229	VANDF	0	0
2.16.840.1.113883.6.230	whoARTfl, WhoARTfl	4	4	WHO Adverse Reaction Terms foreign language translations
2.16.840.1.113883.6.231	uS-ZIPCODES, USZIPCODES, uspostalcodes	0	0	United States Postal Service
2.16.840.1.113883.6.232	sic, Sic	0	0	US Census Bureau
2.16.840.1.113883.6.233	vHA, VHA	0	0	US Department of Veterans Affairs
2.16.840.1.113883.6.234	ahfs, Ahfs	0	0	"AHFS" Pharmacologic-Therapeutic Classification System
2.16.840.1.113883.6.235	csaid, Csaid	0	0	CSAID
2.16.840.1.113883.6.236	ccc, CCC	0	0	Clinical Care Classification System
2.16.840.1.113883.6.238	238, PHRaceAndEthnicityCDC, v2-0005, CDCREC, cdcrec	0	0	PH_RaceAndEthnicity_CDC
2.16.840.1.113883.6.239	239, CDARUS	0	0	CDA_RUS
2.16.840.1.113883.6.240	240, USCOC	0	0	US Census Occupation Code
2.16.840.1.113883.6.241	scdHECGISSpatialAccuracyTiers, SCDHEC-GISSpatialAccuracyTiers, SCDHECGISSpatialAccuracyTiers	0	0	SCDHEC GIS Spatial Accuracy Tiers
2.16.840.1.113883.6.242	epsg-GeodeticParameterDataset, EPSG-GeodeticParameterDataset, EPSGGeodeticParameterDataset	0	0	EPSG Geodetic parameter dataset
2.16.840.1.113883.6.243	soc, Soc	0	0	Standard Occupation Code
2.16.840.1.113883.6.244	d1cs	0	0	DiagnosisONE Coding System
2.16.840.1.113883.6.245	usBoardonGeographicNames	0	0	U.S. Board on Geographic Names
2.16.840.1.113883.6.246	Telin	0	0
2.16.840.1.113883.6.247	ethNICITY	0	0	ETHNICITY
2.16.840.1.113883.6.248	firSTNATIONSSTATUS	0	0	FIRST NATIONS STATUS
2.16.840.1.113883.6.249	metabolicSyndrome, MetabolicSyndrome	0	0	METABOLIC SYNDROME
2.16.840.1.113883.6.250	retINOPATHYINTERPRETATION	0	0	RETINOPATHY INTERPRETATION
2.16.840.1.113883.6.251	smoKER	0	0	SMOKER
2.16.840.1.113883.6.252	diaGNOSTICIMAGEMETHODCODE	0	0	DIAGNOSTIC IMAGE METHOD CODE
2.16.840.1.113883.6.253	mddid, Mddid	0	0	MDDID
2.16.840.1.113883.6.254	icf, ICF	0	0	International Classification of Function
2.16.840.1.113883.6.255	255, X12.3, X123	1	1	X12.3 Data Elementary Dictionary
2.16.840.1.113883.6.256	radLex, RadLex	0	0
2.16.840.1.113883.6.257	mds	0	0	Minimum Data Set for Long Term Care