E/m question

I have been struggling with this and I hope someone can clarify it for me. If a provider sees a patient for a sinus condition and the documentation supports E/M code 99213 but the provider puts in her dictation that she spent 30 minutes with the patient providing counseling during most of the visit. She codes it with 99214; does the extra time spent counseling constitute using the 99214 or do you go by the documentations and use modifier 25?

Thank you,

Lisa Nieft, CPC- A

E/m question