Table 1.

Classification Of Visit Type: Previous Knowledge of the Health Problem

		Episode of Care (C)
New Patient (A)	Major Reason for This Visit (B)	Initial Visit for Problem	Any Other Response
Note: For example, a visit by a known patient (A) seeking care for an acute problem (B) for the first time (C) would be categorized as known patient, new problem. These categories were applied to both primary care and non–primary care visits, but the focus of the subsequent analyses is restricted to non–primary care visits only.
Yes	Acute problem	New patient	New patient
	Pre- or post-surgery	New patient	New patient
	Chronic problem, flare-up	New patient	New patient
	Chronic problem, routine	New patient	New patient
	Preventive care	New patient	New patient
	Missing	Other	Other
No	Acute problem	Known patient, new problem	Known patient, new problem
	Pre- or post-surgery	Known patient, new problem	Known patient, new problem
	Chronic problem, flare-up	Known patient, new problem	Known patient, known problem (recurrence)
	Chronic problem, routine	Known patient, new problem	Known patient, known problem (routine or preventive)
	Preventive care	Known patient, new problem	Known patient, known problem (routine or preventive)
	Missing	Other	Other