I would like to have your insights about this scenario:

DX: headache

history: comprehensive
exam: comprehensive
mdm: moderate

-visual acuity done, CT scan was done and Rx given no other complaints.
-no neuro checks/exam ordered or performed.
-discharged

Will this be a level 4 because of the CT scan? or just a level 3 because headache is the only presenting prob and dx?

Thanks.