Anesthetic services provided in association with an unlisted procedure shall be claimed on a time basis.

When no anesthetic value is listed in association with a procedure, claims shall be submitted on a time basis.

When multiple procedures are provided under the same anesthetic, anesthetic benefits may be claimed by time or by procedure, but not both.

The initial anesthetic time unit (modifiers ANEST and 2ANES) shall begin at the initiation of anesthetic service (time 0). Additional time units may not be claimed until a full five minutes has elapsed.

Additional time units (modifiers ANU and 2ANU) may not be claimed until a full five minutes has elapsed.