Which of the following best defines "number of diagnoses"?

a. Documentation that reflects the physician's familiarity or unfamiliarity with the patient's presenting problem
b. Documentation of any existing or initiated method of treatment, care, or management of the presenting problem; could range from getting a little rest, to having an invasive medical procedure
c. Documentation that reflects the physician's specific findings during the E/M service visit with the patient
d. Documentation of any ordered or requested diagnostic testing to identify the final diagnosis

a) Documentation that reflects the physician's familiarity or unfamiliarity with the patient's presenting problem