This page lists specific source data elements and provides information on their representation in the UMLS Metathesaurus.
VSAB: MDR26_0
The files found in the MedAscii directory of the MedDRA release contain the complete current MedDRA data set. Metathesaurus source processing requires only these files. The consecutive files, found in the SeqAscii directory, define what changes have been made in the MedDRA ASCII files since the last release. These files are not directly used for Metathesaurus source processing.
The information provided here applies explicitly to the English version of MedDRA, however the majority of it is also relevant to most MedDRA translations. The Japanese translation of MedDRA has significant differences.
There were no changes to the original file format or in the Metathesaurus source processing.
The complete English language MedDRA distribution includes the following:
File Name | Description |
---|---|
SMQ_intguide_26_0_English.pdf | SMQ Introductory Guide |
smq_spreadsheet_26_0_English.xlsx | SMQ Spreadsheet (English download only) |
detail_report_26_0_English.pdf | Detail Report (English download only) |
dist_file_format_26_0_English.pdf | MedDRA Distribution File Format Document |
intguide_26_0_English.pdf | Introductory Guide (PDF) |
readme_26_0_English.txt | README listing files in the MedDRA distribution |
version_report_26_0_English.xlsx | Version Report (English download only) |
whatsnew_26_0_English.pdf | What's New in this version |
File Name | Description |
---|---|
MedAscii/llt.asc | Lower Level Terms |
MedAscii/pt.asc | Preferred Terms |
MedAscii/hlt.asc | High Level Terms |
MedAscii/hlgt.asc | High Level Group Terms |
MedAscii/soc.asc | System Organ Classes |
MedAscii/soc_hlgt.asc | Relationships between SOC and HLGT codes |
MedAscii/hlgt_hlt.asc | Relationships between HLGT and HLT codes |
MedAscii/hlt_pt.asc | Relationships between HLT and PT codes |
MedAscii/intl_ord.asc | International SOC sort order data |
MedAscii/smq_list.asc | Standardised MedDRA Query (SMQ) Listing |
MedAscii/smq_content.asc | Standardised MedDRA Query (SMQ) Listing |
MedAscii/mdhier.asc | Hierarchy data: data in this file is redundant to data in soc_hlgt.asc, hlgt_hlt.asc and hlt_pt.asc |
MedAscii/meddra_history_english.asc | History information |
MedAscii/meddra_release.asc | Release metadata |
All information from the MedAscii files is included in the UMLS representation. Certain fields and files may not be directly processed because they contain redundant data.
Details on format of input files and representation of source data. Consult the MedDRA documentation for additional details.
Lower Level Terms, represented with TTY="LLT" or "OL" (for non-current LLTs). Every PT has one identical LLT for data entry purposes. In addition, LLTs may be synonyms, lexical variants, quasi-synonyms, or sub-elements of their PT.Therefore, the pt_code is represented in MRCONSO as a Source-asserted Descriptor Identifier (SDUI), indicating that the LLT and PT are closely related but not necessarily synonymous.
# | Field Name | Description | Representation |
---|---|---|---|
1 | llt_code | 8-digit code to identify Lowest Level Term | MRCONSO.CODE (TTY="LLT", "OL") |
2 | llt_name | Full name of Lowest Level Term | MRCONSO.STR |
3 | pt_code | 8-digit code to identify Preferred Term for this LLT | MRCONSO.SDUI |
4 | llt_whoart_code | Code allocated by the WHO-ART terminology | Not populated |
5 | llt_harts_code | Code allocated by the HARTS terminology | Not populated |
6 | llt_costart_sym | Symbol allocated by the COSTART terminology | Not populated |
7 | llt_icd9_code | Code allocated by the 9th Revision of the International Classification of Diseases, ICD-9 | Not populated |
8 | llt_icd9cm_code | Code allocated by the 9th Revision of the International Classification of Diseases, Clinical Modification ICD-9-CM | Not populated |
9 | llt_icd10_code | Code allocated by the 10th revision of the International Classification of Diseases, ICD-10 | Not populated |
10 | llt_currency | Indicates whether the Lowest Level Term is current or non-current | Used to assign the termtype: If value = "Y", termtype = "LLT"; if value = "N", termtype = "OL", SUPPRESS = "Y" |
11 | llt_jart_code | Code allocated by the J-ART terminology | Not populated |
Preferred Terms
# | Field Name | Description | Representation |
---|---|---|---|
1 | pt_code | 8-digit code to identify Preferred Term | MRCONSO.CODE (TTY = "PT"); MRCONSO.SDUI |
2 | pt_name | Full name of Preferred Term | MRCONSO.STR |
3 | null_field | This field is null | Not applicable |
4 | pt_soc_code | Primary System Organ Class to which the Preferred Term is linked | MRSAT: ATN = "MPS" |
5 | pt_whoart_code | Code allocated by the WHO-ART terminology | Not populated |
6 | pt_harts_code | Code allocated by the HARTS terminology | Not populated |
7 | pt_costart_sym | Symbol allocated by the COSTART terminology | Not populated/td> |
8 | pt_icd9_code | Code allocated by the 9th Revision of the International Classification of Diseases, ICD-9 | Not populated |
9 | pt_icd9cm_code | Code allocated by the 9th Revision of the International Classification of Diseases, Clinical Modification, ICD-9-CM | Not populated |
10 | pt_icd10_code | Code allocated by the 10th revision of the International Classification of Diseases, ICD-10 | Not populated |
11 | pt_jart_code | Code allocated by the J-ART terminology | Not populated |
High Level Terms
# | Field Name | Description | Representation |
---|---|---|---|
1 | hlt_code | 8-digit code to identify High Level Term | MRCONSO.CODE (TTY = "HT") |
2 | hlt_name | Full name of High Level Term | MRCONSO.STR |
3 | hlt_whoart_code | Code allocated by the WHO-ART terminology | Not populated |
4 | hlt_harts_code | Code allocated by the HARTS terminology | Not populated |
5 | hlt_costart_sym | Symbol allocated by the COSTART terminology | Not populated |
6 | hlt_icd9_code | Code allocated by the 9th Revision of the International Classification of Diseases, ICD-9 | Not populated |
7 | hlt_icd9cm_code | Code allocated by the 9th Revision of the International Classification of Diseases, Clinical Modification ICD-9-CM | Not populated |
8 | hlt_icd10_code | Code allocated by the 10th revision of the International Classification of Diseases, ICD-10 | Not populated |
9 | hlt_jart_code | Code allocated by the J-ART terminology | Not populated |
High Level Group Terms
# | Field Name | Description | Representation |
---|---|---|---|
1 | hlgt_code | 8-digit code to identify High Level Group Term | MRCONSO.CODE (TTY = "HG") |
2 | hlgt_name | Full name of High Level Group Term | MRCONSO.STR |
3 | hlgt_whoart_code | Code allocated by the WHO-ART terminology | Not populated |
4 | hlgt_harts_code | Code allocated by the HARTS terminology | Not populated |
5 | hlgt_costart_sym | Symbol allocated by the COSTART terminology | Not populated |
6 | hlgt_icd9_code | Code allocated by the 9th Revision of the International Classification of Diseases, ICD-9 | Not populated |
7 | hlgt_icd9cm_code | Code allocated by the 9th Revision of the International Classification of Diseases, Clinical Modification ICD-9-CM | Not populated |
8 | hlgt_icd10_code | Code allocated by the 10th revision of the International Classification of Diseases, ICD-10 | Not populated |
9 | hlgt_jart_code | Code allocated by the J-ART terminology | Not populated |
System Organ Classes
# | Field Name | Description | Representation |
---|---|---|---|
1 | soc_code | 8-digit code to identify System Organ Class | MRCONSO.CODE (TTY = "OS") |
2 | soc_name | Full name of System Organ Class | MRCONSO.STR |
3 | soc_abbrev | System Organ Class Abbreviation | MRCONSO.CODE (TTY = "AB") |
4 | soc_whoart_code | Code allocated by the WHO-ART terminology | Not populated |
5 | soc_harts_code | Code allocated by the HARTS terminology | Not populated |
6 | soc_costart_sym | Symbol allocated by the COSTART terminology | Not populated |
7 | soc_icd9_code | Code allocated by the 9th Revision of the International Classification of Diseases, ICD-9 | Not populated |
8 | soc_icd9cm_code | Code allocated by the 9th Revision of the International Classification of Diseases, Clinical Modification ICD-9-CM | Not populated |
9 | soc_icd10_code | Code allocated by the 10th revision of the International Classification of Diseases, ICD-10 | Not populated |
10 | soc_jart_code | Code allocated by the J-ART terminology | Not populated |
# | Field Name | Description | Representation |
---|---|---|---|
1 | soc_code | 8-digit code to identify System Organ Class | Used to create hierarchy |
2 | hlgt_code | 8-digit code to identify High Level Group Term | Used to create hierarchy |
# | Field Name | Description | Representation |
---|---|---|---|
1 | hlt_code | 8-digit code to identify High Level Term | Used to create hierarchy |
2 | pt_code | 8-digit code to identify Preferred Term | Used to create hierarchy |
# | Field Name | Description | Representation |
---|---|---|---|
1 | hlt_code | 8-digit code to identify High Level Term | Used to create hierarchy |
2 | pt_code | 8-digit code to identify Preferred Term | Used to create hierarchy |
# | Field Name | Description | Representation |
---|---|---|---|
1 | intl_ord_code | Serial code for international System Organ Class sort order | MRSAT: ATN = "MISO" |
2 | soc_code | 8-digit code to identify System Organ Class |
# | Field Name | Description | Representation |
---|---|---|---|
1 | SMQ_code | 8-digit code assigned to the Standardised MedDRA Query, starts with "2" | MRCONSO.CODE |
2 | SMQ_name | Name for the SMQ; each SMQ carries "(SMQ)" at the end of the name | MRCONSO.STR |
3 | SMQ_level | Value between 1 and 5 identifying the level of the SMQ within the hierarchy | MRSAT: ATN = "SMQ_LEVEL" |
4 | SMQ_description | Description of the SMQ including inclusion and exclusion criteria | MRDEF.DEF |
5 | SMQ_source | Source for the development of the SMQ (e.g., medical references) | MRSAT: ATN = "SMQ_SOURCE" |
6 | SMQ_note | Note for users to better understand the scope and development process for the SMQ. The description of the algorithm used is included (if applicable), as well as the definition of categories | MRSAT: ATN = "SOS" |
7 | MedDRA_version | MedDRA version to use in conjunction with this SMQ | Not used (value is always the current version) |
8 | Status | Status of the SMQ. "A" = an active SMQ; "I" = an inactive SMQ. | MRSAT: ATN = "SMQ_STATUS" |
9 | SMQ_algorithm | If the SMQ was developed for use with an algorithm, the Boolean expression of the algorithm is included. "N" if the SMQ does not utilize an algorithm. | MRSAT: ATN = "SMQ_ALGO" |
# | Field Name | Description | Representation |
---|---|---|---|
1 | SMQ_code | 8-digit code assigned to the Standardised MedDRA Query, starts with "2" | Used to create a "has_member" relationship between the SMQ and its members |
2 | Term_code | Subordinate term code; it could be a code for a MedDRA PT, LLT or child SMQ | Used to create a "has_member" relationship between the SMQ and its members |
3 | Term_level | MedDRA hierarchy level of the term (4 = "PT", 5 = "LLT") or 0 for a child SMQ | MRSAT: ATN = "SMQ_TERM_LEVEL" |
4 | Term_scope | Defines the MedDRA term as a member of the broad scope (1), narrow scope (2) of the SMQ search, or a child SMQ (0) (zero) | MRSAT: ATN = "SMQ_TERM_SCOPE" Attached to the RUI |
5 | Term_category | The category is assigned a single alphabetical letter depending on the algorithm applied. If the SMQ does not use algorithms, then all Term_category values are assigned "A." For a child SMQ, this field is assigned "S." | MRSAT: ATN = "SMQ_TERM_CAT" Attached to the RUI |
6 | Term_weight | Term weight is used for some SMQ algorithms. "0" is used as default. | MRSAT: ATN = "SMQ_TERM_WEIGHT" Attached to the RUI |
7 | Term_status | Identifies a term as active within this SMQ or inactive within this SMQ. When a term is added to an SMQ, the value is set to "A" for Active. The term can be flagged as "I" for inactive if the term is no longer used in the SMQ. | MRSAT: ATN = "SMQ_TERM_STATUS" Attached to the RUI |
8 | Term_addition_version | Identifies the version of MedDRA in which this term was added to the SMQ | MRSAT: ATN = "SMQ_TERM_ADDVERSION" Attached to the RUI |
9 | Term_last_modified_version | Identifies the version of MedDRA in which this term was last modified in this SMQ. | MRSAT: ATN = "SMQ_TERM_LMVERSION" Attached to the RUI |