Also watch for modifier 33.
When CPT® 2011 debuted the subsequent observation care codes 99224-99226, many coders were left scratching their heads. Those new codes featured typical times associated, even though the initial observation care codes 99218-99220 don't have typical times.
Get a New Outlook on E/M Time
The new 2012 edition of your CPT® manual, which takes effect on Jan. 1, will remedy that problem, with the addition of the following typical time guidelines: