D0160 is the CDT code for a detailed and extensive oral evaluation, problem focused, by report. It applies when a patient presents with a complex condition that needs evaluation beyond a routine exam. The phrase by report means a written narrative is required to support the claim.
Last updated June 2026 ยท Reviewed by the PracticeAlpha billing team
Use D0160 when a patient presents with an extensive or complex problem that demands an evaluation well beyond a routine exam. The visit is still problem focused, meaning it centers on a specific concern, but the scope and complexity exceed what a limited evaluation covers. A narrative documenting the problem and the extent of the evaluation is required.
Common clinical scenarios: A patient with a complicated medical and dental history requiring extended assessment. Evaluation of a complex condition such as multiple symptomatic areas, oral pathology concerns, or a temporomandibular complaint. A second-opinion or consultation visit where the complexity of the problem warrants detailed documentation.
Do NOT use D0160 for: A routine periodic check (use D0120). A comprehensive new-patient exam of the whole mouth (use D0150). A simple limited or emergency exam of one issue (use D0140). A comprehensive periodontal evaluation (use D0180). A re-evaluation that does not meet the detailed and extensive threshold.
Click any code to see the difference.
Problem-focused evaluation for a complex or extensive condition. Goes beyond a limited exam in scope and depth. Requires a written narrative describing the problem and the extent of the evaluation.
Evaluation limited to a specific problem or complaint, often an emergency or a single symptomatic area. Lower complexity than D0160 and not described as detailed and extensive.
Billing tip: The jump from D0140 to D0160 is about complexity and documentation. If the narrative does not show why the problem was detailed and extensive, payers tend to reclassify it as D0140 and pay the lower allowance. Let the documented findings drive the code, not the time spent alone.
D0160 is a by report code, so the narrative is not optional. If you submit it without a written explanation of the complex problem and the extent of the evaluation, many payers deny it or downgrade it to a limited exam. The narrative should describe what made the visit detailed and extensive, not just restate that an exam happened.
Evaluation codes are often capped per benefit period. Some payers count D0160 against the same allowance as other evaluations, so a recent D0120, D0140, or D0150 can trigger a frequency denial. Check the patient's history and plan limits before billing, and document why a separate detailed evaluation was needed.
The documentation has to match the code. If the clinical note reads like a routine or limited exam, the payer will not accept the higher detailed and extensive level. Findings, the conditions assessed, and the clinical reasoning should clearly justify the additional complexity.
Billing D0160 alongside another evaluation on the same date often triggers a denial. Most plans expect one evaluation per visit. If a second evaluation code appears for the same date of service, the payer may deny one or both. Pick the single code that best describes the visit.
A clear narrative describing the complex problem and why the evaluation was detailed and extensive. This is the core requirement for a by report code. Without it, the claim is incomplete.
Document the presenting problem, relevant medical and dental history, and any factors that increased the complexity of the assessment. Be specific about what made this more than a routine exam.
Record the conditions evaluated and the findings that support the detailed and extensive level. The note should read clearly differently from a limited or periodic exam.
Radiographs or intraoral photos that document the complex condition strengthen the claim. Include them when they are part of the evaluation and help justify the complexity.
Document the assessment conclusions, referrals, or next steps that came out of the evaluation. A clear plan reinforces that an extensive evaluation actually took place.
Evaluation claims getting denied or downgraded? We fix the coding, narratives, and follow-up patterns that cause it.
Learn about our billing servicesD0160 is the CDT code for a detailed and extensive oral evaluation, problem focused, by report. It applies when a patient presents with a complex or extensive problem that requires evaluation beyond a routine exam. The phrase by report means a written narrative is required to support the claim.
D0140 is a limited, problem-focused evaluation for a specific complaint, such as an emergency or a single area of concern. D0160 is a more detailed and extensive problem-focused evaluation for complex conditions, and it requires a supporting narrative submitted by report.
D0150 is a comprehensive oral evaluation for a new or established patient covering the full mouth and overall conditions. D0160 is problem focused on a complex condition and is reported by narrative. They describe different visit types, not the same exam at different levels.
Common reasons include a missing or weak narrative, frequency limits on evaluations, the visit not meeting the detailed and extensive threshold, billing it alongside another evaluation on the same date, and documentation that does not support the complexity claimed.
Yes. D0160 is a by report code, so a written narrative describing the complex problem and the extent of the evaluation should accompany the claim. Without a narrative explaining why the visit was detailed and extensive, many payers will deny or downgrade it.
Frequency depends on the patient's plan. Evaluation codes are often subject to limits per benefit period, and some payers count D0160 against the same allowance as other evaluation codes. Verify the patient's plan before billing and document the specific problem each time.
Search all 206 CDT codes in our dental coding guide.