Clinic Visits
I've found information on "Clinic Visits" simply by Googling, on the AAPC site, the AHIMA site, and CMS site. Also, just so you know your information has "legit" background, clinic visits have been discussed in the Hospital Outpatient Proposed and Final Rules (Medicare) several years running, including a comment period for leveling and potential for new code assignment. Generally speaking, hospitals will coordinate between their OP clinics so that there is some level of standardization in assignment of code level. This takes some thought and coordination, as specialty areas can be so different in terms of care provided. Currently, the E&M CPT codes 99211-99215 and 99201-99205 are utilized to report clinic visits.
For example - this FAQ is from the Highmark Medicare Services Website (MAC J12):
As an Outpatient Hospital facility, how would we most accurately code our emergency department and clinic visits?
When the Outpatient Prospective Payment System (OPPS) was implemented, providers were instructed to follow their own system for assigning the different levels of HCPCS codes. Hospitals are in compliance as long as:
The services are documented and medically necessary;
The facility is following its own system; and
The facility's system reasonably relates the intensity of hospital resources to the different levels of HCPCS codes.
The cross-walk to the level of service provided should be available upon request.
Note that in my experience, some private payers do not reimburse for clinic visits, so insurance verification, establishing patient liability, and ensuring patients understand this liability are importtant to the process.
Good Luck!