Modify an ICD in the ICD Billing List
  You can modify or update a diagnosis that is not assigned to a Locked Encounter. If a problem is assigned to a Locked Encounter, you cannot make any modifications except to enter a Resolved Date.
 
 - Select the patient's encounter that contains the problem to modify.
 - Open Problems module.
 - Select the Billing ICD List tab.
 - Select the diagnosis.
 - Enter changes.
 - Select Save.