CurrentAnthemPolicy 04-207

Gingival Flap Procedure and Apically Positioned Flap

Defines clinical criteria and limits under which gingival flap procedures (including root planing) and apically positioned flaps are considered appropriate for treatment of periodontal disease and describes coding informational guidance and procedural limits.

Policy Summary

PayerAnthem

PolicyGingival Flap Procedure and Apically Positioned Flap

Policy CodePolicy 04-207

Change TypeAnnual review (no material clinical change)

Effective DateJan 1, 2023

Next Review Date

Key ActionProvide current (within 12 months) dated, post initial therapy 6-point periodontal charting showing pocket depths (minimum 5 mm) after nonsurgical therapy or maintenance.

SourceLink

POLICY UPDATE CHANGES

Annual review noted on 10/28/2022 with no material clinical policy change indicated.

3Primary CDT procedures listed

2Quadrant limit per date of service

5mmMinimum pocket depth threshold

Coverage Summary

Coverage Criteria Policy 04-207 (effective 2023-01-01) addresses Gingival Flap Procedure and Apically Positioned Flap and is identified as covered with criteria. It defines when these procedures meet generally accepted standards of dental practice and specifies documentation and clinical thresholds required for coverage decisions. The listed CDT codes (for example, D4240, D4241, D4245) are provided for informational purposes only and inclusion of a code does not guarantee coverage or payment.

Surface thresholds & quick facts

Pocket depth threshold>= 5 mm (measured on 6‑point periodontal charting)

Documentation recency - chartingPost‑initial therapy 6‑point periodontal charting current within 12 months

Documentation recency - radiographsPretreatment radiographs (periapical and undistorted alveolar crest) current within 12 months

Quadrant limit per date of serviceLimited to two quadrants per date of service; exceptions case‑by‑case

Primary CDT procedures listedD4240, D4241, D4245 (informational)

Referenced prior non‑surgical therapy codesD4341, D4342, D4910 (required documentation of prior therapy/maintenance)

Medically / Dentally Necessary Criteria

Medically/Dentally Necessary Criteria

Covered when ALL of the following are met:

ALL of the following

Treatment is for diseased gingiva after nonsurgical methods, such as root planing and scaling, have been unsuccessful in the removal of subgingival plaque and calculus.
Periodontal charting, after completion of non-surgical periodontal therapy (D4341/D4342) or periodontal maintenance (D4910), is required.
Current (within 12 months), dated, post initial therapy periodontal charting (6 point periodontal charting) indicating pocket depth recordings of a minimum of 5mm.>= 5 mm
Current (within 12 months), dated, pretreatment radiographs showing periapical area and undistorted image of the alveolar crest.
The procedure is indicated in the presence of supra-bony pocket depths where there is a need for increased access to root surfaces.
Chart notes may be requested to demonstrate a soft tissue flap was reflected/resected or planned to allow debridement of the root surface and removal of granulation tissue; osseous recontouring is not accomplished with this procedure.
Procedure is for periodontal defects involving natural teeth only (not performed around implants).

Limitations / Quantity

Gingival flap procedures will be limited to two quadrants per date of service. Exceptions allowed on a case by case basis.

Procedure exclusions

The use of lasers is considered an adjunct to treatment and is not eligible for an additional or separate benefit.
Gingival flap procedures are not performed for treatment of infra-bony pockets.
Gingival flap procedures are not performed for treatment of pockets extending below the mucogingival junction.
Not eligible when minimal amounts of attached keratinized tissue are present.
Presence of minimal attached keratinized tissue is a contraindication.

Provider Actions & Billing Rules

Documentation Required

Post-therapy periodontal charting required

Provide current (within 12 months) dated, post initial therapy 6-point periodontal charting showing pocket depths (minimum 5 mm) after nonsurgical therapy (D4341/D4342) or maintenance (D4910).

Affected codes: D4341, D4342, D4910
Require 6-point periodontal charting
Minimum pocket depths documented: 5 mm
Charting must be current within 12 months (post initial therapy)

Documentation Required

Pretreatment radiographs required

Submit current (within 12 months) dated pretreatment radiographs showing the periapical area and an undistorted image of the alveolar crest.

Radiographs must be dated and current within 12 months
Images must show the periapical area
Images must show undistorted alveolar crest

Documentation Required

Chart notes may be requested to demonstrate flap

Chart notes may be requested to demonstrate that a soft tissue flap was reflected/resected or planned to allow debridement and removal of granulation tissue; osseous recontouring must not be performed with this procedure.

Documentation should confirm a soft tissue flap was reflected/resected or planned to allow access for root debridement and removal of granulation tissue
Documentation must indicate that osseous recontouring is not being accomplished with this procedure

Billing Rule

Quadrant limit per date of service

Limit gingival flap procedures to two quadrants per date of service; exceptions allowed on a case-by-case basis.

Affected codes: D4240, D4241, D4245
Limit = 2 quadrants per date of service
Exceptions may be allowed on a case-by-case basis

Denial Risk

Not eligible for implants or infra-bony indications

Claims for gingival flap procedures performed around implants, for infra-bony pockets, or for pockets extending below the mucogingival junction are not considered and may be denied.

Affected codes: D4240, D4241, D4245
Claims for procedures around implants may be denied
Claims for infra-bony pocket treatment may be denied
Claims for treatment of pockets extending below the mucogingival junction may be denied

Billing Rule

Laser adjunct not separately billable

The use of lasers is considered an adjunct to treatment and is not eligible for an additional or separate benefit; do not bill lasers separately for additional reimbursement.

Lasers are adjunctive and not separately billable
Do not submit separate billing for laser adjuncts as additional benefit

Background & Guidance Sources

This policy reviews gingival flap and apically positioned flap procedures to define clinical criteria, limits, and required documentation to determine whether treatment is consistent with generally accepted standards of dental care. Coverage determinations depend on clinical necessity, documentation (including current 6-point periodontal charting and pretreatment radiographs within 12 months), and the member's contract benefits. Codes listed in the policy are informational only and do not by themselves establish benefit entitlement.

Definitions & Evidence

Definition - Generally accepted standardsStandards based on credible peer‑reviewed evidence, specialty society recommendations, views of recognized dentists, and other credible sources.

Guidance sourcesCDT 2023; American Academy of Periodontology guidelines/position papers; ADA statement on lasers

Revision History

2023-01-01effective

Policy effective date as published.

2022-10-28annual reviewLatest

Revised — Annual review noted; no material clinical policy change indicated.

2020-11-04annual review

Revised — Annual review recorded in revision history.

2020-12-04annual review

Revised — Annual review recorded in revision history.

2021-10-30annual review

Revised — Annual review recorded in revision history.

2018-03-12creation

Initial creation of the policy (creation date in revision history).

OpenPayer

Gingival Flap Procedure and Apically Positioned Flap

Coverage Summary

Medically / Dentally Necessary Criteria

Code Guidance (Informational)

Provider Actions & Billing Rules

Background & Guidance Sources

Revision History

D4240	Gingival Flap Procedure including root planing - four or more teeth
D4241	Gingival Flap Procedure including root planing - one to three teeth
D4245	Apically Positioned Flap
D4341	Periodontal scaling and root planing - four or more teeth per quadrant (referenced for prior non-surgical therapy)
D4342	Periodontal scaling and root planing - one to three teeth per quadrant (referenced for prior non-surgical therapy)
D4910	Periodontal maintenance (referenced)