• It includes services rendered by a physician whose opinion or advice is requested by another physician or agency in the evaluation or treatment of a patient’s illness.

• Consultations may occur in a home, office, hospital, extended care facility and so on.

• Office or other outpatient consultations (new or estb. Patient) – 99241 to 99245

• Initial inpatient consultations ( new or estb. Patient) – 99251 to 99255

• Follow-up inpatient consultation (estb. Patient) – 99261 to 99263

• Confirmatory consultation ( new or estb. Patient) – 99271 to 99275