CurrentBlue Cross Blue Shield - NevadaPolicy 04-208

Miscellaneous Periodontal Surgical Procedures

Defines clinical review criteria, coverage considerations, and coding guidance for miscellaneous periodontal surgical procedures for Blue Cross Blue Shield - Nevada dental benefits.

Policy Summary

PayerBlue Cross Blue Shield - Nevada

PolicyMiscellaneous Periodontal Surgical Procedures

Policy CodePolicy 04-208

Change TypeNo material changes

Effective Date

Next Review Date

Key ActionVerify member contract benefits and obtain prior review if required before proceeding with periodontal surgical procedures.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

2 quadrantslimit per date of service

36 monthsgeneral frequency limit

1 procedureper quadrant limit

>=5 mmpocket depth threshold

12 monthscharting/radiographs dated

Coverage Criteria and Limitations

General coverage criteria

Covered when ALL of the following are met

Documentation: Periodontal charting (6-point), labeled and dated within 12 months; current diagnostic-quality pretreatment radiographs dated within 12 months demonstrating horizontal and/or vertical osseous defects; and pre- and post-nonsurgical periodontal therapy documentation.

Exceptions allowed case-by-case; additional information may be requested.

Prior therapy and timing: Completion of initial periodontal therapy (e.g., scaling and root planing) with a minimum 4-week healing/re-evaluation period prior to any surgical treatment.4 weeks

Allows assessment of periodontal status after healing.

Anatomic/Tooth limitations: Limited to natural teeth only; only teeth with favorable periodontal outcomes will be considered for benefit.

Quantity/frequency limits: Limited to two quadrants per date of service; generally limited to one periodontal surgical procedure per quadrant; generally limited to once every 36 months.2 quadrants; 1 per quadrant; 36 months

Benefits are group contract dependent; exceptions allowed case-by-case.

Pocket depth requirement: Periodontal pocket depth recordings must be 5 mm or greater to be considered for benefit.>= 5 mm

Clinical indication: Indicated when periodontal health cannot be achieved or maintained nonsurgically — for elimination of periodontal pockets, recontouring alveolar bone, or to expose/lengthen clinical crowns.

Determination must align with generally accepted standards of dental practice.

Procedure-specific criteria

Procedure-specific indications and contraindications

D4230/D4231 indications: Anatomical crown exposure (D4230, D4231) is indicated in an otherwise periodontally healthy area to remove enlarged gingival tissue and supporting bone to provide an anatomically correct gingival relationship or to allow proper contour of a restoration.

D4230/D4231 not indicated: Not indicated solely for cosmetic/aesthetic purposes, for correction of altered passive eruption, to manage a fractured tooth with a subgingival fracture in place of other appropriate treatments, or in patients with uncontrolled underlying medical conditions.

D4268 indications: Surgical revision (D4268) is indicated to refine the results of a previously provided surgical procedure and to modify irregular contours of hard or soft tissue.

D4268 restrictions: Disallowed if submitted within the plan frequency limitations of the initial surgical procedure by the same dentist/dental office; may be denied if submitted within frequency limitations by a different dentist/office. Not indicated for second-stage implant surgery, membrane removal, or retreatment of a failing soft tissue graft.

Procedures performed solely for cosmetic or aesthetic purposes are not benefited. Coverage depends on the member's group contract; verify benefit availability against the contract in effect at the time of service. Services provided primarily to improve appearance (including correction of altered passive eruption) are excluded from coverage.

When a procedure is performed in conjunction with or in preparation for a non-covered or denied service, all related services may also be not covered or denied. Additionally, services submitted within plan frequency limitations or submitted by a different dental office in place of the initial surgical procedure may be disallowed or denied (for example, certain surgical revision procedures).

Providers should document clinical necessity clearly and include supporting records (periodontal charting, radiographs, and prior nonsurgical therapy notes) to demonstrate the treatment is restorative or medically indicated rather than cosmetic.

Coverage is limited by quantity and frequency: procedures are generally limited to two quadrants per date of service, with a general frequency limit of once every 36 months, and generally limited to one periodontal surgical procedure per quadrant. Exceptions may be considered on a case-by-case basis with appropriate documentation.

Surgical revision procedures or similar services submitted within the plan frequency limitations of an initial surgical procedure may be disallowed or denied. If the same procedure is submitted within the plan frequency limits by a different dentist or office, it may be denied.

Prior review or authorization requirements are determined by the member's contract; providers should verify benefits and authorization requirements before performing the procedure.

Coding and Clinical Thresholds

CDT codes referencedCPT

D4230	Anatomical Crown Exposure four or more contiguous teeth
D4231	Anatomical Crown Exposure one to three contiguous teeth
D4268	Surgical Revision Procedure per tooth
D4274	Mesial/Distal Wedge Procedure single tooth

CDT codes referenced (duplicate system entry removed)CPT

No codes listed

Diagnosis codesICD-10

ICD-10 CM

Diagnoses for Dental Diseases and Conditions per current CDT/code book

inv-07: Periodontal pocket depth — clinical threshold for benefit

Clinical threshold for benefit>= 5 mm periodontal pocket depth required for consideration of benefit

Charting requirement6‑point periodontal pocket depth charting, labeled and dated within 12 months

Radiographic requirementCurrent diagnostic-quality pretreatment radiographs dated within 12 months showing horizontal and/or vertical osseous defects

Prior non-surgical therapyCompletion of initial periodontal therapy (e.g., scaling and root planing) with minimum 4‑week healing/re-evaluation prior to surgery

Tooth/Anatomic limitationLimited to natural teeth only; only teeth with favorable periodontal outcomes considered for benefit

Provider Requirements and Operational Notes

Prior Authorization

Prior review / benefits verification

Prior review/benefits verification is required per the member's plan. Verify member eligibility and contract benefits at the time of service to determine coverage, frequency limits, and any group contract dependent restrictions before scheduling or performing periodontal surgical procedures.

Verify member contract benefits and eligibility at time of service
Confirm plan frequency limits (generally limited to once every 36 months) and quadrant limits (generally limited to one periodontal surgical procedure per quadrant; procedures limited to two quadrants per date of service)
Confirm coverage exclusions when procedures are performed in conjunction with non-covered services — related services may also be denied

Documentation Required

Required documentation

Maintain and submit complete, dated clinical documentation to support medical necessity. Documentation must be current, diagnostic quality, and available on request to avoid denial.

Periodontal charting: 6‑point periodontal pocket depth charting, labeled and dated within 12 months of the submitted procedure
Pre- and post-nonsurgical periodontal therapy documentation showing completion of initial periodontal therapy (e.g., scaling and root planing) with a minimum 4‑week healing/re-evaluation period prior to surgery
Pretreatment radiographic images: current (within 12 months), diagnostic quality, dated, demonstrating horizontal and/or vertical osseous defects when applicable
Documentation must demonstrate pocket depths generally limited to ≥5 mm and that only teeth with favorable periodontal outcomes are considered for benefit
Include operative notes, tooth-specific findings, quadrant(s) treated, and any prior related procedures to support frequency and provider consistency reviews

Denial Risk

Denial triggers

Denials may be issued when documentation is incomplete, when procedures exceed frequency or quadrant limits, or when services are submitted in conjunction with non‑covered procedures or performed solely for cosmetic reasons.

Denial triggers include: missing or outdated periodontal charting or radiographs; lack of documentation of completed nonsurgical therapy with appropriate healing interval
Services submitted within plan frequency limitations (eg, repeat procedures within 36 months) by the same or different provider may be disallowed/denied
Procedures performed solely for cosmetic purposes or in conjunction with non-covered services may result in denial of related services

OpenPayer

Miscellaneous Periodontal Surgical Procedures

Coverage Criteria and Limitations

Coding and Clinical Thresholds

Provider Requirements and Operational Notes

Clinical Background

Standards and Definitions