The main differences revolve around the complexity of the office visits and the duration of the visit. While 99203 is for lower complexity visits that last 30-44 minutes, CPT code 99204 is for more complex visits that last 45-59 minutes.

CPT code 99203: New patient office visit or other outpatient visit, 30-44 minutes
Improve medical coding and documentation of CPT code 99203 to guarantee proper reimbursement and increase patient satisfaction.
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Frequently asked questions
The CPT code 99203 is used for new patients, while 99213 is used for established patients. Knowing the difference between which code to use for new and established patients ensures more accurate billing.
CPT code 99023's level of service is low.
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