You can create logical groupings of related diagnosis codes in reference systems. For example, the Order Sets reference system contains groups used in the custom impression plan, that is, the Common Dx Framework reference system.
Open NextGen® Enterprise EHR.
From File, select System \ Practice Template.
The Select Template window opens.
On the Practice tab, select the All option.
Select Dx Problem Groups Reference Systems, and then select OK.
Expand the Manage Reference System panel, and then enter a reference system and description.
Select a reference system set from the list.
Note:Reference system set is applicable only for orders sets.
Select the Restrict Code checkbox, and then select Add/Update.
Note: The Protocols, Office Diagnostics, and PT Exercise templates can have one associated code.
The reference system appears in the grid.
Optional: To turn off the new reference system, select the reference system in the grid, and then select Inactivate.
Optional: To turn on an inactive reference system, select the reference system in the grid, and then select Activate.