How to Install WHODrug with Pinnacle 21 Community

WHODrug Dictionary 

The WHODrug dictionary is used to identify drug names and evaluate medicinal product information, including active ingredients and products' anatomical and therapeutic classifications.  Typically, WHODrug is used for coding concomitant medications.  For more information, please see section of the Technical Conformance Guide. 

We currently offer support for WHODrug B3 format only.

Since WHODrug is only available through a commercial subscription, it’s not included as part of Pinnacle 21 Community Validator distribution and must be provided by you or your company. 

When provided, the Pinnacle 21 Validator uses the three files (listed below) from the WHODrug dictionary to perform coding compliance checks. The WHODrug dictionary includes more files but only the ones listed below are needed for validation. 

  • DD.txt (Drug Dictionary)
  • INA.txt (ATC Text)
  • Version.txt (Version Naming File)

Steps to Install

We have created this easy process for you to add your company’s licensed copy of WHODrug to Pinnacle 21 Community Validator. 

  1. From the validation screen, click "More Dictionaries".
  2. Click "Install now" next to WHODD.
  3. Browse to the folder that contains Version.txt and select the file (not the directory). Note: DD.txt and INA.txt must be present in the same folder as Version.txt; additional WHODrug files will be ignored.
  4. Click Install.
  5. After install is completed, click close.  

After you have installed WHODrug, you will be able to select which version to use from the dropdown. 

To add additional versions of WHODrug dictionary, click "More Dictionaries" on the validation screen and then select the plus icon next to the dictionary.  Repeat steps 3 - 5 as needed.

Note: To overwrite an existing version of WHODrug already imported, follow the same steps and select "yes" when prompted if you wish to overwrite. 


For any additional questions, please post on the P21 Community Forum. If you are an Enterprise client, please contact your CSM or email

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