CurrentAnthemPolicy 04-208

Periodontal Surgical Procedures, miscellaneous

Governance of coverage and clinical criteria for miscellaneous periodontal surgical procedures (including surgical revision and mesial/distal wedge procedures) for Anthem members; applies to dental providers submitting services for benefit determination.

Policy Summary

PayerAnthem

PolicyPeriodontal Surgical Procedures, miscellaneous

Policy CodePolicy 04-208

Change TypeNo material clinical or coverage changes

Effective Date01/01/2026

Next Review Date

Key ActionVerify member contract benefits and prior authorization requirements for listed CDT periodontal procedure codes before submission.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

2quadrant limit per date of service

5mmminimum pocket depth

D4230,D4231,D4268,D4274example CDT codes

12 mocharting/rads recency

4 wksmin healing before wedge

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COVERAGE CRITERIA

Covered when ALL of the following are met (criteria vary by procedure type as noted):

General coverage criteria

Documentation requirements: Provide labeled and dated 6-point periodontal pocket depth charting and diagnostic radiographs (within 12 months) demonstrating osseous defects as applicable.<= 12 months
For surgical revision: post-treatment charting; for mesial/distal wedge: pretreatment charting.
Limitation per date of service: Procedures limited to two quadrants per date of service unless exceptions are approved case-by-case.

Indications for anatomical crown exposure (D4230/D4231): Indicated to remove enlarged gingival tissue and supporting bone to provide correct gingival relationship, allow restoration contour, or manage a fractured tooth extending subgingivally (in otherwise periodontally healthy areas).

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

Post-treatment charting required as documentation.

Mesial/Distal wedge (D4274) indication: Indicated when active periodontal disease with moderate to deep probing depths (greater than 5 mm) is present on a surface adjacent to an edentulous/terminal tooth area, or when increased access to root surface is needed after unsuccessful non-surgical attempts.>5mm

Completion of initial periodontal therapy (e.g., scaling and root planing) with at least a 4-week healing period is required prior to wedge procedure.

Pre-requisite therapy for wedge: Completion of initial periodontal therapy (e.g., scaling and root planing) with a minimum 4-week healing period prior to surgical treatment.>= 4 weeks after initial therapy

Allows assessment of periodontal status before surgery.

Coverage excludes procedures performed solely for cosmetic/aesthetic purposes and procedures in members with an uncontrolled underlying medical condition. Additionally, services are not indicated for patients who have been non‑compliant with prior periodontal therapies, for areas with teeth in proximal contact, or when the service represents second‑stage implant surgery, membrane removal, or retreatment of a failing soft‑tissue graft. The policy also treats certain procedures as inclusive with other surgical procedures in the same anatomical area performed on the same date of service.

When a surgical revision or mesial/distal wedge procedure is submitted within the plan frequency limitations of an initial surgical procedure, benefits determination depends on the submitting provider. If submitted by the same dentist or dental office, the procedure is DISALLOWED; if submitted by a different dentist or dental office within those same frequency limitations, the procedure is DENIED.

Coding and Clinical Thresholds

CDT codes (example)CDT

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

Periodontal pocket depth — minimum threshold for consideration

Minimum recorded pocket depth5 mm (limited to periodontal pocket depth recordings of 5mm or greater)

Tooth type limitationLimited to natural teeth only

ConsiderationOnly teeth with favorable periodontal outcomes will be considered for benefit

Documentation recency — maximum age for required periodontal charting and radiographs

Maximum age for periodontal chartingWithin 12 months (labeled and dated 6‑point periodontal pocket depth charting)

Maximum age for radiographsWithin 12 months (current diagnostic quality, dated pretreatment radiographic images showing osseous defects)

Charting timing by procedureFor surgical revision: post‑treatment charting within 12 months; for mesial/distal wedge: pretreatment charting within 12 months

Provider Actions and Documentation Requirements

Prior Authorization

Code applicability and benefits verification

Providers must verify member contract benefits and applicability of listed CDT codes prior to performing or billing for services. Confirm coverage, frequency limits, and any prior authorization requirements for the specific CDT codes submitted (examples include D4230, D4231, D4268, D4274).

Verify member benefits and eligibility.
Confirm plan frequency limits and prior authorization requirements.
Ensure submitted CDT codes match the procedure performed.

Denial Risk

Concomitant service rule

When any service 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. Providers should anticipate potential denials when preparing treatment plans that include non-covered procedures and counsel members accordingly.

If primary service is non-covered/denied, associated preparatory or concurrent services may be denied.
Obtain benefit confirmation before performing services that are adjunctive to potentially non-covered care.

Billing Rule

Frequency/plan limit enforcement

Surgical revision (e.g., D4268) or mesial/distal wedge procedures (e.g., D4274) submitted within the plan frequency limitations of an initial surgical procedure are subject to plan enforcement: when submitted by the same dentist/dental office within the initial procedure frequency limits the procedure may be disallowed; when submitted by a different dentist/dental office within those limits the procedure may be denied.

Same dentist/dental office within frequency limits: DISALLOWED.
Different dentist/dental office within frequency limits: DENIED.
Confirm prior procedure dates and office of service before billing repeat or revision procedures.

Documentation Required

Required clinical documentation

Required clinical documentation must be provided with surgical periodontal procedure claims. Documentation includes periodontal charting and diagnostic-quality radiographs within recency limits, and records of prior nonsurgical therapy where applicable.

Labeled and dated 6‑point periodontal pocket depth charting: for surgical revision procedures — post‑treatment charting within 12 months of the submitted procedure; for distal/mesial wedge procedures — pretreatment charting within 12 months of the submitted procedure.
Current (within 12 months), diagnostic quality, dated pretreatment radiographic images demonstrating horizontal and/or vertical osseous defects.
Documentation that initial periodontal therapy (e.g., scaling and root planing) was completed and that at least four weeks of healing occurred prior to mesial/distal wedge procedures.
Limit documentation to natural teeth and pocket depth recordings ≥5 mm for surgical benefit consideration.
Include a periodontal diagnosis consistent with current AAP/ADA guidelines (staging and grading).
Periodontal surgical procedures limited to two quadrants per date of service; exceptions require case‑by‑case review.

Background

Miscellaneous periodontal surgical procedures are intended for situations in which periodontal health cannot be achieved or maintained with non‑surgical care. These procedures may be used to eliminate periodontal pockets, recontour alveolar bone, expose or lengthen clinical crowns, or refine results of prior surgery. A mesial/distal wedge procedure specifically targets a single tooth adjacent to an edentulous area to remove tissue, gain access for debridement, aid cleaning of mesial or distal surfaces, and reduce pocket depths when non‑surgical attempts have been unsuccessful. Surgical revision procedures are performed to refine results of a previously provided surgical procedure by modifying irregular hard or soft tissue contours.

Definitions

Surgical revision procedure — definition and brief description

DefinitionProcedure performed to refine results of a previously performed surgical procedure by modifying irregular hard and/or soft tissue contours.

PurposeModify irregular contour results of prior periodontal surgery to improve form and function.

Documentation requirementRequire labeled and dated post‑treatment 6‑point periodontal pocket depth charting (within 12 months) and current radiographs as applicable.

Mesial/Distal Wedge Procedure — definition and brief description

DefinitionProcedure performed for a single tooth adjacent to an edentulous area to remove tissue, gain access for debridement, aid cleaning of mesial or distal area and reduce pocket depths.

IndicationIndicated when active periodontal disease with moderate to deep probing depths on a surface adjacent to an edentulous/terminal tooth area or when non‑surgical therapy was unsuccessful.

PrerequisiteCompletion of initial periodontal therapy (e.g., scaling and root planing) with minimum 4‑week healing period prior to surgical treatment.

OpenPayer

Periodontal Surgical Procedures, miscellaneous

Coverage Criteria

Coding and Clinical Thresholds

Provider Actions and Documentation Requirements

Background

Definitions