D4240 - Gingival Flap (4+)
Gingival flap with root planing (4+ teeth).
- Procedure Code
- D4240
- Clinical Category
- Periodontics
- Primary ICD-10 Justification
- See mapped diagnoses below
- Reference Fee & Claim Types
- DENTAL
Insurance Verification Benchmarks & Billing Guidelines
Payer policy benchmarks, pre-submission attachment requirements, and denial prevention rules for D4240.
- Frequency Limitation
- Subject to group/individual contract frequency limitations (none)
Required Claim Attachments & Pre-Submission Checklist
- Full-mouth periodontal charting with 6-point probing depths and bleeding points
Bill When (Allowable Clinical Criteria)
- Indicated for medically and clinically necessary treatment as documented in patient's dental record.
Restrictions & Clinical Exclusions
- Periodontal surgical procedures include all necessary postoperative care, finishing procedures, oral evaluations for three months. Soft tissue grafts may be allowed on the same teeth/sites within 36 months with supporting documentation. When a surgical procedure is billed within three months of the initial surgical procedure in relation to both natural teeth and implants by the same dentist/dental office, the fee for the surgery is not billable to the patient. In the absence of documentation of extraordinary circumstances, the fee for additional surgery by the same dentist/dental office for three years is not billable to the patient. If extraordinary circumstances are present, the benefits will be denied and is chargeable to the patient up to the approved amount for the surgery. not billable to the patient
- Periodontally involved teeth which would qualify for surgical pocket reduction benefits under these procedure codes must be documented to have at least 5 mm pocket depths and bone loss beyond 1-1.5 millimeters. If pocket depths are under 5 mm, then benefits are denied.
- If surgery is performed less than four weeks after scaling and root planing, fees for the surgical procedure or the scaling and root planning by the same dentist/dental office are not billable to the patient following consultant review.
- Periodontal surgical procedures include all necessary postoperative care, finishing procedures, oral evaluations for three months, as well as any surgical re-entry for three years. When a surgical procedure is billed within three months of the initial surgical procedure by the same dentist/dental office, the fee for the surgery is not billable to the patient. In the absence of documentation of extraordinary circumstances, fees for additional surgery are not billable to the patient for three years.
- For benefit purposes, local anesthesia is an integral part of the periodontal procedures being performed and additional charges are not billable to the patient.
- Laser disinfection is a technique, not a procedure. Fees for laser disinfection are not billable to the patient.
Common Claim Denial Codes & Overturn Strategies
| Denial Code | Denial Reason | Appeal & Overturn Strategy |
|---|---|---|
| CO-119 | Benefit maximum or frequency limitation exceeded for procedure | Submit clinical narrative detailing extraordinary circumstances, active recurrent pathology, or exception criteria. |
ICD-10-CM Justification & Crosswalk Mappings for D4240 (0)
Click any ICD-10-CM diagnosis code below to inspect its reverse procedure mappings and differential coding guide.
No direct ICD-10 mappings recorded for D4240.
Frequently Asked Questions — D4240 (Gingival Flap (4+))
Quick answers for dental billers and treatment coordinators submitting claims for D4240.
What ICD-10 diagnosis codes link to dental procedure D4240?▾
Currently no specific ICD-10 crosswalk mappings recorded for CDT D4240.
Can CDT code D4240 be billed to medical insurance?▾
Billing CDT D4240 (Gingival Flap (4+)) to medical insurance depends on the underlying clinical necessity and trauma/pathology documentation. Supported claim types across linked diagnoses: DENTAL.
What attachments and documentation are required for billing CDT D4240?▾
Required claim attachments for CDT D4240 (Gingival Flap (4+)) include: Full-mouth periodontal charting with 6-point probing depths and bleeding points.
What is the insurance frequency limitation for CDT D4240?▾
Standard commercial insurance frequency for D4240: Subject to group/individual contract frequency limitations (none).
What are common insurance denial reasons and appeal tips for CDT D4240?▾
Denial Code CO-119 (Benefit maximum or frequency limitation exceeded for procedure): Overturn appeal strategy - Submit clinical narrative detailing extraordinary circumstances, active recurrent pathology, or exception criteria.