Patient responsibility may apply with every office visit. These are usually billed along with other diagnostic testing performed during the visit.
| New Patient | Established Patient | Description |
| 99201 | 99211 | Nurse Visit |
| 99202 | 99212 | self-limited / minor problem |
| 99203 | 99213 | chronic stable illness Acute uncomplicated illness |
| 99204 | 99214 | chronic illness with mild exacerbation / progression or side effect of treatment chronic illnesses stable Undiagnosed new problem with uncertain diagnosis Acute illness with systemic symptoms |
| 99205 | 99215 | chronic illness with severe exacerbation / progression or side effect of treatment Acute or chronic illnesses that poses a threat to life or bodily function Abrupt change in neurological status |