The users of MedDRA have found it to be such an important tool that, in addition to the English Master, it has been translated into Chinese, Czech, Dutch, French, German, Hungarian, Italian, Japanese, Portuguese, and Spanish. Multiple languages allow most users to operate in their native language which promotes accuracy and precision of assigning terms. This interoperability is very powerful and allows easy multinational sharing of data. Essential supporting documentation is maintained with each release of MedDRA in all the languages.
All MedDRA terms are assigned a unique, 8-digit numeric code; the code is assigned to the translated term in each MedDRA language. This allows for electronic submission of the same concept (e.g., in an Individual Case Safety Report - ICSR) in any of its languages without loss of information or possible mistranslation by the sender or receiver.
The Japanese translation of MedDRA (MedDRA/J) is maintained by the Japanese Maintenance Organization (JMO) which works with the MSSO to assure that MedDRA/J is kept in synchrony with English MedDRA. The remaining MedDRA translations are centrally maintained by the MSSO (under the direction of the ICH MedDRA Management Board), and changes to English MedDRA are reflected in these translations also.