The template
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Comprehensive periodontal evaluation - new or established patient. RMH: Medical history reviewed/updates BP: BP/Pulse CC: Chief complaint Periodontal history: Periodontal history Previous perio treatment: Previous perio treatment Last SRP date: Last SRP date Smoking history: Smoking history Diabetes status: Diabetes status D0180 support: Signs/symptoms, systemic medical condition, or social risk factor supporting comprehensive periodontal evaluation Full-mouth probing confirmation: Six-point probing/full periodontal charting completed Not reported with D0120/D0150/D4355 today: Yes/no Extraoral Exam: Head/neck: Extraoral findings Lymph nodes: Lymph node findings Intraoral Exam: Gingival description: Gingival description Color: Color Contour: Contour Consistency: Consistency Texture: Texture Full Periodontal Charting: Probing depths recorded. Clinical attachment levels recorded. Bleeding on probing: Bleeding on probing Suppuration: Suppuration Recession: Recession Mucogingival defects: Mucogingival defects Furcation involvement: Furcation involvement Mobility: Mobility Fremitus: Fremitus Radiographic Evaluation: Radiographs: Radiographs taken/reviewed and findings Bone loss pattern: Bone loss pattern Bone loss severity: Bone loss severity Occlusal Analysis: Fremitus: Fremitus Wear facets: Wear facets Occlusal trauma signs: Occlusal trauma signs Risk Assessment: Smoking: Smoking Diabetes: Diabetes Genetic factors: Genetic factors Stress: Stress Compliance history: Compliance history Periodontal Diagnosis: Stage: Stage Grade: Grade Extent: Extent Distribution: Distribution Prognosis: Prognosis Overall: Overall Individual teeth: Individual teeth Treatment Plan: Phase I: Phase I Phase II (if indicated): Phase II (if indicated) Maintenance interval: Maintenance interval Patient education provided. Treatment options: Options/alternatives discussed. NV: Next visit
Documentation requirements
D0180 is one of the most audited evaluation codes because the descriptor itself sets the bar: signs/symptoms or risk factors, plus full-mouth six-point charting. The chart note must show both. A defensible note includes:
- Medical history and medications reviewed — diabetes/HbA1c when known, smoking/vaping status in pack-years, immunosuppressants, bisphosphonates, anticoagulants, pregnancy
- Vital signs — BP and pulse
- Chief complaint and periodontal history — bleeding gums, mobility, halitosis, recession the patient noticed, prior SRP/surgery dates, prior maintenance interval
- Explicit D0180 justification line — the specific sign/symptom, systemic condition, or social risk factor that triggered the comprehensive perio exam (e.g., "generalized BOP with 5–6 mm pockets and Type 2 diabetes")
- Extraoral exam — head/neck, lymph nodes, TMJ
- Intraoral soft-tissue exam and oral cancer screening — explicit, not implied
- Gingival description — color, contour, consistency, texture (e.g., "generalized erythematous, edematous, rolled margins, loss of stippling")
- Full six-point periodontal charting on every tooth — probing depths, recession, calculated CAL, BOP, suppuration, mucogingival defects, furcation grades (Glickman or Hamp), Miller mobility, fremitus. Reference the chart entry/page; don't paraphrase
- Radiographic interpretation — bone-loss pattern (horizontal vs vertical/angular), severity in mm or % of root length, crown-to-root ratios, calculus, widened PDLs, furcation involvement on imaging
- Occlusal analysis — fremitus, wear facets, parafunction, occlusal trauma signs
- Risk factors — smoking pack-years, diabetes control, stress, family history, compliance history
- Periodontal diagnosis using current AAP/EFP framework — stage (I–IV), grade (A–C), extent (localized < 30% / generalized ≥ 30%), distribution (molar-incisor pattern, etc.)
- Prognosis — overall and per-tooth (good / fair / poor / questionable / hopeless)
- Phased treatment plan — Phase I (SRP, OHI, behavior modification), re-eval timing, Phase II (surgical) if indicated, maintenance interval
- Patient education and informed-consent discussion — risks, alternatives, no-treatment consequences, smoking-cessation referral when applicable
- Provider signature
The CDT descriptor also lists oral cancer evaluation, medical-history evaluation, and a general wellness assessment as components of D0180 — these must be in the note, not assumed. Carriers and state boards that audit will recoup payment when full-mouth charting is missing or when the supporting sign/symptom is not stated.
Common denial reasons
The most common reasons D0180 is denied, downgraded, or recouped:
- Insufficient sign/symptom documentation — the note doesn't state the perio finding or risk factor that justified the comprehensive perio code; carrier downgrades to D0120 or D0150 fee
- Missing or incomplete full-mouth charting — six-point probing, CAL, recession, BOP, furcation, and mobility were not all recorded on every tooth that visit
- PSR-only documented — a Periodontal Screening Record was performed instead of full charting; D0180 is not supportable
- Frequency exceeded — patient already used the combined evaluation allowance this year (often via a prior D0120, D0140, or D0150)
- Same-day conflict — billed alongside D0120, D0150, or D4355 on the same DOS; one will be denied per CDT rules
- No periodontal diagnosis — note describes findings but never states a stage/grade/extent or even "generalized chronic periodontitis"; carrier reads it as a routine exam
- Used as a substitute for D0150 in healthy new patients — auditors flag offices that bill D0180 routinely without supporting findings
- Frequent-flyer perio coding — billing D0180 at every recall visit for the same patient instead of alternating with D0120 or D4910 raises an audit pattern
- Missing AAP staging language — newer carrier policies (post-2018 AAP framework) increasingly expect stage/grade in the note for periodontitis claims that depend on D0180