Wiki Can you use Critical Care code if less than 30 min?

[knperry]

Hello!
My provider seems to think that he can bill the critical care code for 15 mins. He said to adjust the units in the system. From what I learned the provider has to spend at least 30 mins on the patient in order to bill the 99291. Please tell me who is right in this matter?!

Thank you

 

[cgaston]

The CPT book states "critical care of less than 30 minutes total duration on a given date should be reported with the appropriate E&M code". Show him a copy of the guidelines.