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
2.16.840.1.113883.6.1	1, LOINC, v3-loinc, loinc	0	0	Logical Observation Identifier Names and Codes (LOINC)
2.16.840.1.113883.6.2	2, Icd9cm, icd9cm	0	0	International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM)
2.16.840.1.113883.6.3	3, Icd10, icd10	3	3	International Classification of Diseases revision 10 (ICD 10) Note: This does NOT have the CM changes, and is specifically for…
2.16.840.1.113883.6.4	4, Icd10PCS, icd10PCS	0	0	International Classification of Diseases, 10th Revision, Procedure Coding System (ICD-10-PCS) which describes the classificatio…
2.16.840.1.113883.6.5	5, Snm, snm	0	0	Systemized Nomenclature in Medicine Reference Terminology (SNOMED RT) SNM College of American Pathologists
2.16.840.1.113883.6.6	6, ReadCodes, read-Codes	0	0	Clinical Terms Version 3 - The Read Codes
2.16.840.1.113883.6.7	7, NaaccrCodes, naaccrCodes	0	0	NAACCR Cancer Registry NAACCR
2.16.840.1.113883.6.8	8, UCUM, v3-ucum, ucum	0	0	Unified Code for Units of Measure (UCUM), case sensitive form
2.16.840.1.113883.6.9	iso4217-HL7, Iso4217HL7, v3-iso4217-HL7	0	0	ISO 4217 currency code
2.16.840.1.113883.6.10	10, Mime, v3-mime, BCP13, mime	0	0	IETF MIME media types MIME
2.16.840.1.113883.6.11	11, Url, url	0	0	Universal Resource Locator (URL) schemes. Currently there is no single authority for URL schemes. The authority for URL scheme …
2.16.840.1.113883.6.12	12, CPT, cpt-4	1	1	American Medical Association's Current Procedure Terminology 4 (CPT-4) codes. C4
2.16.840.1.113883.6.13	13, CDT, CD2, cdt-ADAcodes	0	0	American Dental Association's Current Dental Terminology 2 (CDT-2) codes. CD2
2.16.840.1.113883.6.14	14, HCPCS-all-codes, HPC	0	0	Healthcare Financing Administration (HCFA) Common Procedure Coding System (HCPCS). Is composed of three "levels". Level I is CP…
2.16.840.1.113883.6.15	15, Nic, nic	0	0	NIC provides names and values for procedures/orders/service intent related to the treatment activities of nurses and other prov…
2.16.840.1.113883.6.16	16, Noc, noc	0	0	NOC - Nursing Outcome Codes NOC
2.16.840.1.113883.6.17	17, Hhcc, hhcc	0	0	HHCC - Home Health Codes HHC
2.16.840.1.113883.6.18	18, ISBT128PropertyTypes, Ib, ib	2	52	Information Standard for Blood and Transplant (ISBT) 128, a coding system for blood components, hematopoietic progenitor cells …
2.16.840.1.113883.6.19	19, Camncvs, camncvs	0	0	CAM & Nursing Coding Vocabulary Set CAMNCVS
2.16.840.1.113883.6.20	20, NandaI, nanda-i, nanda	0	0	Terminology consisting of standardized terms and codes for patient problems or life processes expressed as nursing diagnoses
2.16.840.1.113883.6.21	21, NubcUB92, nubc-UB92	0	0	National Uniform Billing Council, UB 92 NUBC-UB92
2.16.840.1.113883.6.22	22, Pnds, pnds	0	0	PNDS (standardized terms and codes for patient problems/nursing diagnoses, nursing interventions including actual or expected (…
2.16.840.1.113883.6.23	23, Nmmds, nmmds	0	0	NMMDS (the minimum set of items of information with uniform definitions and categories concerning the specific dimension of the…
2.16.840.1.113883.6.24	ieee11073, DeviceMetricAndComponentTypes, devicemetric-type, Mdc, v3-mdc, mdc	0	0	Health Level 7 (HL7) internal reference to ISO/IEEE 11073 Health informatics -- Point-of-care medical device communication
2.16.840.1.113883.6.25	25, AbcCodes, abcCodes	0	0	These codes fit into standard message formats for HCPCS codes that are a named standard. ABCcodes Alternative Link Systems, Inc.
2.16.840.1.113883.6.26	26, Medcin, medcin	0	0	MEDCIN contains more than 175,000 clinical data elements arranged in a hierarchy, with each item having weighted links to relev…
2.16.840.1.113883.6.27	27, Multum, multum	0	0	Multum Information Services
2.16.840.1.113883.6.28	28, RcFB, rcFB	0	0	The Read Codes Four Byte Set
2.16.840.1.113883.6.29	29, RcV2, rcV2	0	0	The Read Codes Version 2
2.16.840.1.113883.6.30	as4, AS4	0	0	American Society for Testing & Materials (ASTM) E1238/E1467 Universal
2.16.840.1.113883.6.31	dicomMDLTY, DicomMDLTY	0	0	Digital Imaging and COmmunications in Medicine (DICOM) modality codes
2.16.840.1.113883.6.32	32, Dicomqry, dicomqry	0	0	Digital Imaging and COmmunications in Medicine (DICOM) query label
2.16.840.1.113883.6.33	33, ENZC	0	0	Enzyme Codes ("ENZC")
2.16.840.1.113883.6.34	34, Euclides, euclides	0	0	EUCLIDES E
2.16.840.1.113883.6.35	35, E5, e5	0	0	Euclides quantity codes E5
2.16.840.1.113883.6.36	36, E6, e6	0	0	Euclides Lab method codes E6
2.16.840.1.113883.6.37	37, E7, e7	0	0	Euclides Lab equipment codes E7
2.16.840.1.113883.6.38	38, Fdk, fdk	0	0	FDA K10 FDK
2.16.840.1.113883.6.39	39, Hi, hi	0	0	Health Outcomes HI
2.16.840.1.113883.6.40	40, HibccHIN, hibccHIN	0	0	HIBCC HB
2.16.840.1.113883.6.41	41, Ics, ics	0	0	ICCS ICS
2.16.840.1.113883.6.42	42, Icd9, icd9	0	0	ICD9 I9
2.16.840.1.113883.6.43	43, IcdO, icd-o	1	1	International Classification of Diseases for Oncology ICDO
2.16.840.1.113883.6.44	44, IC2, ichppc-2	0	0	ICHPPC-2 IC2
2.16.840.1.113883.6.45	45, ICSD, icsd	0	0	International Classification of Sleep Disorders ICSD
2.16.840.1.113883.6.46	46, IUPP, iupp	0	0	IUPAC/IFCC Property Codes IUPP
2.16.840.1.113883.6.47	47, IUPC, iupc	0	0	IUPAC/IFCC Component Codes IUPC
2.16.840.1.113883.6.48	48, JC8	0	0	Japanese Chemistry JC8
2.16.840.1.113883.6.49	49, OHA	0	0	Omaha System
2.16.840.1.113883.6.50	50, POS	0	0	POS Codes POS