The American Society of Anesthesiologists Relative Value Guide lists the following methods as examples to determine professional charges for billing labor anesthesia services:
 
  - Base units plus time reporting in minutes (insertion through delivery) subject to a reasonable cap.
 
  - Base units plus one unit per hour for neuraxial anesthesia service management plus direct patient contact time, commonly referred to as Face Time.
 
  - Incremental time-based fees (e.g. 0<2 hrs, 2-6 hrs, >6 hrs)
 
  - Single or flat fee
 
 
 Since practices determine their own method for billing OB anesthesia services, NextGen® Enterprise PM can accommodate commonly used and known methods of billing OB anesthesia services. These include:
 
  - Pain Management epidurals should not be counted against maximum concurrency.
 
  - Billing for labor cases that changed from a planned vaginal delivery to an emergency C-section. This is the only time billing two anesthesia codes on a claim is permitted.
 
  - Some payers recognize only time in attendance with the patient and others time in attendance plus reduced time for management. The system must be able to bill accordingly.
 
  - Practices are permitted to bill for epidural anesthesia as follows: 
   
    - 15 minutes per unit for the first hour
 
    - 60 minutes per unit for the remaining time
 
    - Minimum charge is $400.00