1. Introduction
2. Starting the MedDRA WBB
2.1 Access the WBB and Log In
2.2 Components of the WBB Screen
2.3 WBB Configuration Options
3. Searching
3.1 Search Results Panel Features
3.2 Go to Browser
3.3 Search by Code
3.4 Select SOCs to Search
3.5 Advanced Search
3.6 SMQ Search
4. Additional Search Features
4.1 Export Search Results
4.2 Presentation of Results
4.3 Search in Multiple Languages
4.4 Synonym List
4.5 Ignore Diacritical Marks
4.6 VCR Buttons
4.7 Clear Search
4.8 Cancel
5. Useful Features
5.1 History Function
5.2 Copy term / Copy code
5.3 Open Details and Occurrences
5.4 Research bin
5.5 Export Research Bin to Spreadsheet
5.6 Import Previously Exported Research Bin
5.7 SMQ Export
5.8 SMQ Analysis
5.9 Hierarchy Analysis
6. MedDRA/J Specific Functions
6.1 Kana / Kanji
6.2 J-currency
6.3 MedDRA/J Synonyms
6.4 MedDRA/J Legend

Welcome to the MedDRA Web-Based Browser User Guide!


Welcome to the MedDRA Web-Based Browser (WBB) User Guide. This guide has been developed to familiarize the reader with the use of the MedDRA Web-Based Browser.

The WBB is designed to review the MedDRA hierarchy and SMQs, and perform term searches for coding and analysis tasks in English and available translated languages.

This guide assumes the viewer has a basic understand of how MedDRA is used for regulatory reporting and analysis and knowledge of MedDRA's hierarchical structure.

For more information about the MedDRA Web-Based Browser, questions, or comments about this guide, please contact the MedDRA MSSO at:


Toll Free International: +1 877 258.8280

Direct: +1 703 556.2950

Fax: +1 703 556.1744


MedDRA® trademark is registered by IFPMA on behalf of ICH.

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Disclaimer and Copyright Notice

This document is protected by copyright and may, with the exception of the ICH and MedDRA logos, be used, reproduced, incorporated into other works, adapted, modified, translated or distributed under a public license provided that ICH's copyright in the document is acknowledged at all times. In case of any adaption, modification or translation of the document, reasonable steps must be taken to clearly label, demarcate or otherwise identify that changes were made to or based on the original document. Any impression that the adaption, modification or translation of the original document is endorsed or sponsored by the ICH must be avoided.

The document is provided "as is" without warranty of any kind. In no event shall the ICH or the authors of the original document be liable for any claim, damages or other liability arising from the use of the document.

The above-mentioned permissions do not apply to content supplied by third parties. Therefore, for documents where the copyright vests in a third party, permission for reproduction must be obtained from this copyright holder.


This section describes basic WBB functions and contains the following:

•  Access the WBB and Log in

•  Components of the WBB screen

•  Web Configuration Options

2.1 Access the WBB and Log In

The MedDRA WBB is a free tool that is part of your MedDRA subscription.

To log into the WBB, go to the following link: You will be presented with the Login screen.

MedDRA Log in

Figure 2-1. WBB Login Screen

Click on the MedDRA End User License Agreement link to read the Terms of Use governing your use of the WBB.

To log in, select a preferred language for the user interface, and then use your MedDRA ID and password. This is the same MedDRA ID and password used to access portions of the MedDRA website and other web-based tools such as MVAT.

Note: When logging on for the first time, the End User License Agreement appears.


Figure 2-2. WBB End User License Agreement

Please review the information in the End User License Agreement and click on I Agree to continue to the WBB home screen.

Subsequent logins will take you immediately to the WBB home screen.

2.2 Components of the WBB Screen

The WBB interface is laid out in five panels.

Figure 2-3. Components of the WBB Screen

  1. At the top are WBB configuration options and useful information. These include the ability to change languages, MedDRA version, and switch between SOC and SMQ view.

  2. To the left is the MedDRA hierarchy panel where one can browse the hierarchy by left clicking the plus symbol next each term to drill down to the LLT level.

    Just above the MedDRA hierarchy panel is the Term Navigation panel. The hierarchy information reduces the need to scroll up to recall which SOC, HLGT you are browsing in.

  3. In the middle is the search panel where words or MedDRA codes may be entered to search for MedDRA terms.

  4. The bottom / middle is where the search results are displayed

  5. To the right is term detail information. When clicking on a MedDRA term in the hierarchy panel (B) or in search results (D), the term details display in this far right panel.

2.3 WBB Configuration Options

The WBB configuration and information options are shown below.

Figure 2-4. WBB Configuration Options

MedDRA Concept Descriptions


Search history

New browser window

MedDRA Documentation

User Guide

SMQ Analysis

Hierarchy Analysis

Language options

Browser View SOC vs. SMQ

Version section

Show codes

Release and Supplemental English

Restore Defaults


This section describes how to perform searches in the WBB and explains what the search functions in the search panel produce.

Figure 3-1. WBB Search Screen

To search, enter a term or word in the Search screen (C)..

The search function performs a logical and operation and return terms with those words found in any order.

When results are returned, a summary of the search results appears (D) showing the total number of terms returned and a hierarchical breakdown of results – for example how many LLTs, PTs, HLTs, etc.

Similarly, the results are divided in separate tabs according to their place in the MedDRA hierarchy – LLT, PT, HLT, etc.

LLTs will show first if there are any in a search result.

By default, a search will break up returned results into four search categories at the PT and LLT level.

Search Results

Figure 3-2. WBB Search Results

  • Exact match – result matches exactly what was typed into the search field

  • Lexical variant – returns different word order of words typed into the search field. In this case the search returned the lexical variant "failure liver" from the search of "liver failure."

  • Synonym search results – return results based on the associated synonym list file. Notice the search for liver failure returned terms that contain hepatic in them.
  • Contains search results– terms that contain word or words entered in the search field.
  • If you prefer to not group research results according to the search categories, this function may be disabled by unchecking "Show PT/LLT with categories" option which will return results in alphabetical order.

    3.1 Search results panel features

    To view the hierarchy of higher level terms and multi-axial links, expand the search results. The primary SOC is designated with a blue square.

    Search results panel features

    Figure 3-5. Search Results Panel Features

    3.2 Go to browser

    To use this feature, right click on a term in the search results panel (PT Cardiac death) and choose "go to browser." A second browser window pops up displaying the hierarchy information and takes the user to the place within MedDRA where that term is located and the surrounding terms.

    Go to browser results

    Figure 3-6. Go to Browser Results

    In this case there are two links – a primary link to SOC General disorders and administration site conditions which is designated by the blue box surrounding the "SOC" icon, and a secondary link to SOC Cardiac disorders.

    To see the secondary link in the MedDRA hierarchy, click on the LLT in the secondary link on the left side of the screen to see the surrounding LLTs and PTs are.

    Secondary link

    Figure 3-7. Secondary Link

    3.3 Search by Code

    In addition to words, one may also enter a MedDRA code in the search field to search by code.

    Search by code

    Figure 3-8. Search by Code

    3.4 Select SOCs to search

    To limit which SOCs to search from, select one or more SOC(s) from the "Select SOCs to search" window. For example, if you were interested in investigation terms and did not want terms from other SOCs, select the Investigation SOC to limit searches to this single SOC.

    Select SOC to search

    Figure 3-9. Select SOC to Search

    Multiple groups of SOCs can be selected by holding down the shift key and clicking on SOC names.

    Notice that when a search is limited to a subset of the 27 SOCs, there is a yellow highlighted message informing the user that search is limited to the number of SOCs selected.

    Select multiple SOCs to search

    Figure 3-10. Select Multiple SOCs to Search

    To search all 27 SOCs again, click the "Clear Selection" button.

    3.5 Advanced Search

    Performing more complex and filtered searches for terms.

    Figure 3-11 Search Options

    The first operator is a string operator and the options are CONTAINS, BEGINS WITH, ENDS WITH, and EXACT MATCH. The second operator is for Boolean operatorss such as AND, OR. The third operator is a string operator again and the options are CONTAINS, BEGINS WITH, ENDS WITH, EXACT MATCH, and NOT CONTAINS.

    Synonyms are only included for the search term associated with the CONTAINS operator.

    Searching for MedDRA codes does not work in this function.

    3.6 SMQ Search

    Performing searches for SMQs is similar to performing searches in the SOC view. First switch the browser view to SMQ view.

    Figure 3-12. SMQ View Option

    Enter a word or words to search in the search field.

    Search SMQs

    Figure 3-13. Search SMQs

    As demonstrated in the SOC view, one can search for MedDRA term codes and – specific to the SMQ view – SMQ codes may be entered for searching.

    Enter the SMQ code in the Search Options screen and press Search.

    Search SMQ term codes

    Figure 3-14. Search SMQ Term Codes


    In addition to the above search functions, there are additional search features available in the WBB.

    4.1 Export search results

    To export search results to a spreadsheet, after performing a search, click on "Export" in the Search Options screen.

    Export search results

    Figure 4-1. Export Search Results

    A popup window appears displaying the search results. Note that MS Excel or compatible spreadsheet software must be installed on your computer for this feature to work.

    Search results display

    Figure 4-2. Search Results Display

    Secondary SOC hierarchy information is included by default when exporting search results. This option may be unchecked if only primary SOC information is needed. Similarly, HLGT and HLT terms are included in exports by default. If these terms are not needed, they can be excluded from the export by unchecking these levels in export options.

    Click "Export" to export your results to a spreadsheet. The exported spreadsheet will contain a separate worksheet for each level of the hierarchy identified in the search.

    4.2 Presentation of results

    Different web browsers, such as Internet Explorerฎ and Chrome™ browser for example, have different approaches in how the load information from a server to present to the user. To account for these differences, the Web-Based Browser has been designed to optimize the user experience based on the number of results returned.

    Search results will be expanded for all search categories displaying all terms found if the number of results is small (20 or less). Exceptions:

    For searches resulting in dozens of terms, the "synonym search results" and the "Contains Search" in the PT and LLT tab will show collapsed, but may be expanded to see the results.

    Large search results

    Figure 4-3. Large Search Results

    For searches resulting in thousands of terms, a message will appear stating "Your search has returned too many results to display. Click the Export button to export your results to a spreadsheet."

    Too many results to display

    Figure 4-4. Too Many Results to Display

    4.3 Search in multiple languages

    The WBB has the capability of searching in three supported languages. From the Configuration options fields, choose three languages. In the example below, three languages have been selected in the following order: German, English and Spanish.

    Figure 4-5. Search in Three Languages

    One can see what language the browser is set to search by looking to the left of the search field. Type in a German word to search (sodbrennen). The search returns items with the German, English, and Spanish words.

    Figure 4-6. Search Results in Three Languages

    The language to search can be changed by using the drop-down menu to the left of the search field. Only the languages selected in the language options menu will appear. In the example below, the search language was changed to English.


    Figure 4-7. Search Language Option Menu

    To search or view two languages only, simply make two of the three language choices the same.

    Figure 4-8. Search Options for Two Languages

    4.4 Synonym List

    There is an associated synonym list for each of the supported languages. To view this list, click on the "Use Synonym List" link in the search panel.

    To view a list to a specific language, that language must be the primary language selected.

    View specific language synonym list

    Figure 4-9. View Specific Language Synonym List

    A popup screen appears with the synonym list for the selected language.

    Figure 4-10. German Translation Synonym List

    The synonym search function can be disabled by unchecking the “Use Synonym List” feature.

    4.5 Ignore Diacritical Marks

    By default, the "ignore diacritical marks" option is enabled for searching. This means that diacritical marks such as accents, tildes, and umlauts used in non-English Latin alphabet languages are ignored when performing a search. This alleviates the user from having to remember the correct diacritical marks for words.

    "Ignore diacritical marks" can be disabled by unchecking this option:

    Ignore diacritical marks

    Figure 4-11. Ignore Diacritical Marks

    4.6 VCR Buttons

    The arrow icons below the search button provide a way to go back or forward through searches performed within a WBB session.

    VCR buttons

    Figure 4-12. VCR Buttons

    For example, clicking on the left < arrow goes back to the previous word or words searched. The right > arrow moves one search forward within the set of terms selected.

    The outside arrows go to the very first term searched within a WBB session or to the last term searched within a WBB session.

    4.7 Clear search

    To clear the search results panel and the search field, press the "Clear Search" button.

    Clear search

    Figure 4-13. Clear Search

    4.8 Cancel

    To stop a search in progress, press the "Cancel" button.


    5.1 History function

    To view basic historical information about a MedDRA term, right click on the term in either the search results panel or the hierarchy panel and select "Open History."

    Open History

    Figure 5-1. Open History

    A history window will appear showing basic history information for the selected term:

    Figure 5-2. Open History Results

    5.2 Copy term / Copy code

    To copy a term name or MedDRA code into the computer?s clipboard for pasting in a document, right click a term in either the search results panel or the hierarchy panel and select either "Copy Term" to copy the term name, or "Copy Code" to copy the MedDRA code.

    Copy Term

    Figure 5-3. Copy Term

    This function behaves differently depending on the web browser being used. Internet Explorer users may receive a warning message the first time the function is used. For Firefox, Chrome, and other browsers, a prompt appears asking the user to press the CTRL + C keys to copy the term or code.


    Internet Explorer                                                 Firefox / Chrome / Safari / Microsoft Edge

    Figure 5-4. Browsers

    The term name or term code can be pasted into another document such as a word document.

    5.3 Open details and occurrences

    To view open details and occurrences of a term, right click on the term in either the search results panel or the hierarchy panel and select "Open Details and Occurrences."

    Open Details and Occurrences

    Figure 5-5. Open Details & Occurrences

    A details and occurrences window will appear showing similar information as shown in the term details panel on the lower right of the WBB.

    Additionally, term occurrences in MedDRA hierarchy and placement in SMQs are displayed.

    Term Details in Primary Language

    Figure 5-6. Term Details in Primary Language

    5.4 Research bin

    The research bin collects and stores terms during a WBB session for research purposes.

    To add a term to the research bin, right click on a term and press "Add to Research Bin."

    Add to Research Bin

    Figure 5-7. Add to Research Bin

    Multiple groups of sequential terms can be added to the research bin by selecting and holding down the shift key and clicking on term names.

    Add multiple groups

    Figure 5-8. Add Multiple Groups to Research Bin

    Multiple non-sequential terms can be added to the research bin by holding down the control key and clicking individual terms.

    Individual terms in the research bin may be removed by clicking the check box next to the term and selecting "Remove" at the top of the research bin:

    Figure 5-9. Remove Terms From Research Bin

    The entire research bin contents may be removed by clicking "Clear All."

    A term and all subordinate terms may be added at one time by right clicking on a term and selecting "Add Selected Levels to Research Bin."

    Add Selected Levels

    Figure 5-10. Add Selected Levels to Research Bin

    The user will be prompted to uncheck any levels they do not want to include when adding terms to the research bin via the "Add selected Levels to Research Bin" option.

    Figure 5-11. Excluding levels from the Research Bin

    After unchecking any levels to exclude and clicking "next", the research bin is displayed.

    Figure 5-12. My Research Bin

    5.5 Export research bin to spreadsheet

    Before exporting the research bin to a spreadsheet, there is an option to label the research bin. Enter a topic name in the "Research Topic" field above and click on "Export."

    Figure 5-13. Research Bin Label

    Secondary SOC hierarchy information is included by default when exporting from the research bin. This option may be unchecked if only primary SOC information is needed. Similarly, the HLGT and HLT hierarchy is included in exports by default. If these terms are not needed, they can be excluded from the export by unchecking these levels in export options.

    Included in the export spreadsheet are the topic name, if entered, a date/time stamp, and the term codes and names, levels, the accompanying primary SOC hierarchy, and the secondary SOC path, if selected.

    Figure 5-14. Export Spreadsheet

    It is important to understand that the WBB does not store research bin contents after logging off or your session has timed out due to inactivity. To overcome this limitation, users may export a research bin to a spreadsheet and import it at a later time. This function permits the user to save their work and begin again later.

    5.6 Import a previously exported research bin

    To import a previously exported research bin, from the "My Research Bin" screen, press the "Browse" button to find the spreadsheet on your local computer or local network. network.

    Click "Import."

    Import previously exported spreadsheet

    Figure 5-15. Import Previously Exported Spreadsheet


    Figure 5-16. Imported Terms Results

    5.7 SMQ Export

    To export an SMQ and its related PTs to a spreadsheet, select SMQ view. Right click on an SMQ and select "SMQ Export."

    SMQ Export

    Figure 5-17. SMQ Export

    You will be presented with a popup window. By default, inactive PTs are not included in an export, but this can be overridden by selecting the "Include Inactive terms" checkbox.

    Figure 5-18. Include Inactive Terms

    Press "Export" to export the contents of an SMQ to a spreadsheet. You will be presented with the following popup screen. Press Open.

    Export SMQ contents

    Figure 5-19. Export SMQ Contents

    Notice that the contents of the SMQ, including the SMQ name, PTs, and PT scope are included. The yellow highlighted rows are inactive PTs. Remember inactive PTs would only be included in an export if the "include inactive PTs" check box was checked.

    Figure 5-20. SMQ Contents Spreadsheet

    5.8 SMQ Analysis

    This function allows user to determine which SMQs are associated with a set of uploaded MedDRA terms. To perform this analysis, you will first need to select language/MedDRA version, and search type (narrow, broad, and algorithmic).

    Figure 5-21. SMQ Analysis Search Options

    Then, import a spreadsheet with the desired MedDRA terms. Data must be in a Microsoft Office Excel or compatible spreadsheet with the first row containing the column headers and with data starting on the second row. Four columns are required in the following order (Row ID, LLT/PT Term, LLT/PT Code, Case ID). The Row ID value is optional (note the row ID column is required). Either the LLT/PT Term or LLT/PT Code must be provided. The Case ID is optional unless you’re planning on doing an Algorithmic Search, in which case, Case ID is required.

    Figure 5-22. Inputs for Analysis

    After generating the report, you can export it to a spreadsheet.

    Figure 5-23. SMQ Analysis Report

    5.9 Hierarchy Analysis

    This function lets you retrieve the MedDRA hierarchy of multiple terms uploaded at one time and optionally includes the secondary SOC path. To perform this analysis, you must first select the language and MedDRA version. Also, select any preferred options for what data you want to export to a spreadsheet.

    Figure 5-24. Hierarchy Analysis Inputs

    Next, import the spreadsheet with the desired MedDRA terms. Data must be in a Microsoft Office Excel or compatible spreadsheet with the first row containing the column headers and with data starting on the second row. Three columns are required in the following order (Row ID, Term, Code). The Row ID value is optional (note the row ID column is required). Either the Term or Code must be provided.

    Figure 5-25. Input for Analysis

    After generating the report, you can export it to a spreadsheet for further analysis.

    Figure 5-26. Hierarchy Analysis Report


    While the concept and contents of the Japanese version of MedDRA are exactly the same for English as they are in all of the other supported languages, there are some unique features in the Japanese translation of MedDRA due to language, culture, and medical practice.

    To use the Japanese MedDRA features in the WBB, Japanese must be set to the primary language. Select "SOC View."

    Select language option

    Figure 6-1. Select Language Option

    6.1 Kana / Kanji

    The Japanese version of MedDRA contains a translation for both Kanji and Kana. Kanji is the written form of Japanese displayed in the hierarchy view and term detail information. The Kana translation is used to help the reader of Japanese know how to pronounce the Kanji term, and is provided for current LLTs and higher level terms – PT, HLT, etc.

    To see the Kana translation of the Kanji terms in the hierarchy panel, click the "Kana" checkbox in the configuration options panel.

    Kana translation option

    Figure 6-2. Kana Translation Option

    Notice that the Kana translation appears to the right of the Kanji translation separated by a slash.

    Kana / Kanji translation

    Figure 6-3. Kana / Kanji Translation

    Additionally, the Kana translation is always displayed in the term details information found in the term details panel and the "Open details and Occurrences" right click option.

    Open Kana Details & Occurrences

    Figure 6-4. Open Kana Details & Occurrences

    Kana term details

    Figure 6-5. Kana Term Details

    6.2 J-currency

    In the Japanese translation of MedDRA, there is an additional currency flag for LLTs to address instances when two or more English LLTs are translated to the same Japanese term. Japanese MedDRA currency – called J-currency – ensures the uniqueness of Japanese MedDRA terms by flagging only one of the duplicated translations for current use.

    The WBB supports several methods to identify the J-currency status of LLTs.

    When browsing the MedDRA hierarchy at the LLT level, a blue Japanese text to the right of an LLT separated by parentheses indicates a term that has been set to J non-current status.

    Figure 6-6. J-currency Status

    Click on the LLT and refer to the Term detail panel.

    Note the J-currency flag is set to "No." The same information appears in the Open Details and Occurrences popup.

    Right click on the term and select "Open Details and Occurrences."

    Open Details & Occurrences_J-currency

    Figure 6-7. Open Details & Occurrences_J-currency

    To view changes to the J-currency status, right click on the term and select "Open History."

    Open History_J-currency

    Figure 6-8. Open History_J-currency

    Figure 6-9. J-currency History Results

    Notice both LLT currency and the J-currency information are indicated.

    6.3 MedDRA/J Synonyms - they are displayed under LLTs

    To address some of the linguistic challenges described earlier, the Japanese Maintenance Organization distributes a Japanese synonym file with each MedDRA Japanese translation release. This synonym file is built into the WBB and is different than the synonym search function explained in the WBB search section, which applies to English and the other supported languages. The Japanese synonyms are linked to the LLTs and will appear below the LLTs in the MedDRA hierarchy.

    To view the Japanese synonym for an LLT, search for a term.

    Search for a term

    Figure 6-10. Search for a Term

    Right click on the term and select "Go to Browser."

    Japanese Term Go to Browser

    Figure 6-11. Japanese Term - Go to Browser

    Go to Browser results

    Figure 6-12. Go to Browser Results

    The synonyms appear below the LLT level in the hierarchy view:


    Figure 6-13. Results_J-synonyms

    6.4 MedDRA/J Legend

    In addition to the other color code explanations, the J-currency and Japanese synonym list identifiers are presented in the legend to help users remember what these symbols mean. They appear in both SOC and SMQ legends.

    Note that the symbols specific to Japanese MedDRA will only show in the legend if Japanese is selected as one of the three language options.

    To view the J-currency and Japanese synonym list identifiers, click on Legends.

    J Synonym list identifiersJ Synonym list identifiers

    Figure 6-14. J-currency and Japanese Synonym List Identifiers

    For more information about the MedDRA Web-based Browser, questions, or comments about this guide, please contact the MedDRA MSSO at: