Where can I find a list of Diagnosis codes that can be billed with a specific procedure?

Go to the desired procedure code details page. Locate the "CROSS-A-CODE" section.  When you open it you have the option of selecting the "National (all contractors)" option or to specify your state/region.  From here you have the option of searching for related diagnosis codes (ICD-10-CM), CPT/HCPCS modifiers, NCCI Edits Modifiers, and more.  Their are two view, List view shows a downloadable list of related codes.  The other view is the Category view which shows an expandable hierarchy.

To view related Medicare Policy documents (when available), click on the "medicare docs" button to see a list of the Articles & LCDs that link the codes.: