CurrentBlue Cross Blue Shield - MainePolicy 04-205

Osseous Surgery (Periodontal)

Policy governing when osseous (periodontal) surgery is considered appropriate and benefit-limited for members receiving dental coverage; applies to providers submitting claims to the plan.

Policy Summary

PayerBlue Cross Blue Shield - Maine

PolicyOsseous Surgery (Periodontal)

Policy CodePolicy 04-205

Change TypeMinor or no material changes

Effective Date

Next Review Date

Key ActionObtain and document completion of initial periodontal therapy with post-therapy 6-point charting showing pocket depths >= 5 mm and diagnostic radiographs within 12 months before submitting for coverage or prior authorization.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

>=5 mmminimum pocket depth required

2quadrant limit per date of service

1procedure limit per period

12 morecency for charting/rads

Coverage Criteria

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

Initial therapy and healing: Completion of initial periodontal therapy (e.g., scaling and root planing) with a minimum of four weeks allowed for tissue healing prior to surgical treatment to permit assessment of the success or failure of non-surgical therapy4 weeks healing

From policy

Post-therapy periodontal charting: Post-initial therapy periodontal charting (6-point) demonstrates pocket depths greater than or equal to 5 mm>= 5 mm

Charting must be current (within 12 months)

Recency of charting and radiographs: Current (within 12 months), dated, post-initial therapy periodontal charting and diagnostic pre-treatment radiographic images demonstrating horizontal and/or vertical osseous defectswithin 12 months

If radiographs are non-demonstrative, a detailed narrative describing periodontal case type, percentage bone loss, measured furcation involvement, and vertical defect description may be requested

Quadrant and frequency limits: Benefits limited to two quadrants per date of service; benefits are group contract dependent and limited to one osseous surgical procedure in a given period per single tooth or multiple teeth in the same quadrant2 quadrants; 1 procedure per period per tooth/quadrant

Exceptions allowed on a case-by-case basis

Procedure inclusions and tooth selection: Periodontal surgical procedures listed as examples (e.g., gingivectomy/gingivoplasty, mesial/distal wedge, anatomical crown exposure, gingival flap, apically repositioned flap, clinical crown lengthening, surgical revision) are considered inclusive with osseous surgery; only teeth (or implants, which are considered equivalent to natural teeth for quadrant surgery) with favorable periodontal outcomes will be considered for benefit

From policy

Services that are performed primarily for cosmetic reasons or for patient convenience are excluded and are not considered part of the plan’s definition of generally accepted dental practice. The plan’s determination of whether a service is medically or dentally necessary does not guarantee that the service is a covered benefit under the member’s contract.

When a service is performed in conjunction with or in preparation for a non-covered or denied service, those related services will also be treated as non-covered or denied under the plan.

Procedures that do not meet the plan’s definition of generally accepted standards of dental practice are excluded from coverage. The plan evaluates osseous surgery and related dental services against those standards and contractual requirements to determine whether the care requested is appropriate.

The plan specifically notes that coverage determinations are contract-dependent; even if a procedure is considered appropriate clinically, it may be non-covered if it fails to meet contractual criteria or is performed in association with a non-covered service, in which case related services will also be non-covered or denied.

Coding and Clinical Thresholds

Included CDT codes (informational)CDT

D4260	Osseous surgery (including elevation of a full thickness flap and closure) - four or more contiguous teeth or tooth bounded spaces per quadrant
D4261	Osseous surgery (including elevation of a full thickness flap and closure) - one to three contiguous teeth or tooth bounded spaces per quadrant
D6101	Debridement and osseous recontouring of peri-implant defect or defects surrounding a single implant, surface cleaning of the exposed implant surfaces, including flap entry and closure
D6102	Debridement and osseous recontouring of a peri-implant defect or defects surrounding a single implant, and includes surface cleaning of the exposed implant surfaces, including flap entry and closure

inv-05: Pocket depth — minimum clinical threshold for consideration

Minimum pocket depth>= 5 mm (post-initial therapy, 6-point charting)

Bleeding on probingPocket depths >= 5 mm must have bleeding upon probing documented

Tooth selectionOnly teeth with favorable periodontal outcomes will be considered for benefit

inv-06: Recency of charting/radiographs requirement

Recency requirement for periodontal chartingCurrent (within 12 months), dated post-initial therapy 6-point periodontal charting required

Recency requirement for radiographsCurrent (within 12 months), dated diagnostic pretreatment radiographic images demonstrating osseous defects required

Alternate documentation if radiographs non-demonstrativeIf radiographs are not demonstrative, a detailed narrative (case type, % bone loss, furcation involvement, vertical defect description) may be requested

Provider Actions and Documentation Requirements

Prior Authorization

Prior Authorization / Coverage Limitations

Osseous surgery is appropriate only after completion and reassessment following initial periodontal therapy. Allow a minimum of four weeks after scaling and root planing before considering surgical intervention to permit tissue healing and to assess the success of non-surgical therapy.

Completion of initial periodontal therapy (e.g., scaling and root planing) with a minimum 4-week healing/reassessment interval
Post-therapy periodontal charting showing pocket depths ≥ 5 mm
Current (within 12 months), dated, post-initial therapy 6‑point periodontal charting
Current (within 12 months), dated, diagnostic pre-treatment radiographs demonstrating horizontal and/or vertical osseous defects
When radiographs are non-diagnostic, a detailed narrative may be requested describing periodontal case type, % bone loss, measured furcation involvement, and vertical defect description
Benefits limited to two quadrants per date of service; exceptions reviewed case-by-case
Limited to one osseous surgical procedure per tooth or multiple teeth in the same quadrant per given period (group contract dependent)
Periodontal surgical procedures (e.g., gingivectomy, gingivoplasty, flap procedures, clinical crown lengthening) are considered inclusive with osseous surgery
Only teeth with favorable periodontal outcomes will be considered for benefit
Osseous surgery frequency limits (post-op management and surgical re-entry) are subject to group contract limits
If a service is performed in conjunction with or in preparation for a non-covered or denied service, related services may also be non-covered or denied

Documentation Required

Non-surgical Therapy Prerequisite

Non-surgical therapy (initial periodontal therapy such as scaling and root planing) must be completed and the patient reassessed after at least four weeks prior to osseous surgery to determine treatment response.

Minimum 4-week interval after completion of scaling and root planing before surgical treatment and reassessment

Documentation Required

Required Clinical Documentation

Required clinical documentation must be current, dated, and performed after initial periodontal therapy. Documentation should demonstrate clinical and radiographic evidence supporting osseous surgery.

Post-initial therapy 6‑point periodontal charting (current within 12 months) with pocket depths ≥ 5 mm
Diagnostic pre-treatment radiographs (current within 12 months) showing horizontal and/or vertical osseous defects
If radiographs do not demonstrate defects, provide a detailed narrative with periodontal case type, % bone loss, furcation involvement, and vertical defect description

Billing Rule

Coding and Benefit Note

Coding listed is informational only. Inclusion or omission of codes does not guarantee coverage—verify member contract benefits and eligibility at the time of service.

CDT examples: D4260, D4261, D6101, D6102 (list not exhaustive)
Refer to the member's contract for coverage, frequency limits, and benefit exclusions
Inclusion of a code in this policy does not imply member reimbursement or coverage

Denial Risk

Bundled Denial Risk

Services performed in conjunction with non-covered or denied services may also be denied. Be aware that bundled denial risk exists when related services support a non-covered procedure.

If a primary service is non-covered or denied, related preparatory or concurrent services may be denied
Confirm coverage for all planned services against the member's contract prior to treatment

Background

Osseous (periodontal) surgery is a surgical intervention intended to correct horizontal or vertical alveolar bone defects that result from periodontal disease. It is considered when, after completion of initial non-surgical periodontal therapy and an appropriate healing interval (minimum 4 weeks), pocket depths remain >= 5 mm with persistent clinical signs (for example, bleeding on probing) and diagnostic pre-treatment radiographs or descriptions document horizontal and/or vertical osseous defects.

Prior to consideration of osseous surgery, the plan requires documentation of a current (within 12 months) dated 6‑point periodontal charting and diagnostic radiographic imaging demonstrating the osseous defects. Benefits are subject to contract limits including a maximum of 2 quadrants per date of service and typically 1 osseous surgical procedure per period for a given tooth or teeth in the same quadrant, with exceptions handled on a case‑by‑case basis.

Definitions

inv-13: Generally accepted standards of dental practice — definition and sources

Definition (term)Standards based on credible peer-reviewed dental literature, specialty society recommendations, views of recognized dentists in the clinical area, and other credible sources.

PurposeDental services must align with generally accepted standards to be considered medically/dentally necessary and eligible for benefit determination

Exclusions under the standardServices primarily for convenience or cosmetic purposes are not considered generally accepted standards of dental practice