D0150Comprehensive Oral Evaluation

What This Code Covers

D0150 is the comprehensive evaluation code used when a new patient is seen for the first time at your practice, or when an established patient returns after three or more years. The dentist performs a full examination of hard and soft tissues, evaluates occlusion, reviews radiographs, documents existing restorations and missing teeth, and develops a comprehensive treatment plan. This establishes a complete baseline of the patient's oral health. After the initial D0150, subsequent routine visits should be billed as D0120.

Billing Guide

Bill this code when:

• Patient is new to the practice and has never been evaluated there
• Established patient returns after an absence of three or more years and needs a full re-evaluation
• Dentist performs a full-mouth evaluation including all hard and soft tissues
• A comprehensive treatment plan is developed from the findings

Do not bill this code when:

• Patient is established and returning for routine recall. Use D0120
• Patient comes in for a specific complaint only and doesn't receive a full exam. Use D0140
• Billing on the same day as D0120. Only one evaluation code per visit
• Clinical notes don't support the comprehensive scope. Document all tissues examined, medical history review, and treatment plan discussion

Insurance and Denial Prevention

Key Payer Rules:

• Most plans cover D0150 once per patient at a practice, or once every 3-5 years
• Typically processed at 100% in-network under preventive or diagnostic benefits
• Some plans have waiting periods for new enrollees before comprehensive evaluations are covered
• If a patient transferred from another dentist within the same benefit year and already had a comprehensive eval, some payers may deny D0150

Common Denials and How to Respond:

• Comprehensive eval already on file within payer frequency → Appeal with documentation showing this is the patient's first visit at your practice. Include the date they established care.
• Downgraded to D0120 → Appeal with clinical notes supporting the comprehensive scope: full-mouth findings, treatment plan, complete medical history review
• Patient not eligible on date of service → Verify coverage start date before the appointment. New patients sometimes schedule before their insurance is active.