Select the Medical Necessity Diagnosis Code
- To search for the diagnosis code (key) from ICD-9 codes and descriptions in the ICD9CM Codes Master File, select ICD9 Code Master (default).
 - To search from code alternates set up in your Diagnostic Codes Library, select Diagnosis Code Mstr.
 - Enter the first few letters or numbers of the ICD-9 code and/or description.
 - To limit your search, select a category to search from in the Category Desc list.
 - Select Search. 
   The diagnosis codes that match your search criteria appear.
- To empty all search fields and perform a new search if needed, you can select Clear.
 - To exit without selecting a diagnosis code, you can select Cancel.
 
 - Select the applicable diagnosis code, do one of the following:
   
- Select OK.
 - Double-click the code.
 
The selected diagnosis code is automatically entered.