D4266ADA CDT ProcedurePeriodonticsSURGICAL SERVICES (INCLUDING USUAL POST-OPERATIVE SERVICES)

D4266 - Tissue Regen (Resorb)

Guided tissue regen - resorbable barrier.

Patient-Friendly Summary: This procedure places a dissolvable (resorbable) barrier membrane over a bone graft to protect the healing bone from fast-growing gum tissue. The membrane naturally dissolves on its own over several months, allowing new bone to form undisturbed.
Clinical Documentation Notes: Once per site per 36 months. Age 18+. Dental Advisor review required. Requires Tooth ID.
Procedure Code
D4266
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 D4266.

Source: Delta Dental 2026
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.
  • Benefits for D4266 when billed in conjunction with implants, ridge augmentation, ridge preservation/extraction sites, periradicular surgery, apicoectomy sites, hemisections, etc. are denied as a specialized procedure. procedure can be used for periodontal defects around natural teeth.
  • Benefits for D4266, in conjunction with mucogingival/soft tissue grafts in the same surgical area, are denied.

Common Claim Denial Codes & Overturn Strategies

Denial CodeDenial ReasonAppeal & Overturn Strategy
CO-119Benefit maximum or frequency limitation exceeded for procedureSubmit clinical narrative detailing extraordinary circumstances, active recurrent pathology, or exception criteria.

ICD-10-CM Justification & Crosswalk Mappings for D4266 (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 D4266.

Frequently Asked Questions — D4266 (Tissue Regen (Resorb))

Quick answers for dental billers and treatment coordinators submitting claims for D4266.

What ICD-10 diagnosis codes link to dental procedure D4266?▾

Currently no specific ICD-10 crosswalk mappings recorded for CDT D4266.

Can CDT code D4266 be billed to medical insurance?▾

Billing CDT D4266 (Tissue Regen (Resorb)) 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 D4266?▾

Required claim attachments for CDT D4266 (Tissue Regen (Resorb)) include: Full-mouth periodontal charting with 6-point probing depths and bleeding points.

What is the insurance frequency limitation for CDT D4266?▾

Standard commercial insurance frequency for D4266: Subject to group/individual contract frequency limitations (none).

What are common insurance denial reasons and appeal tips for CDT D4266?▾

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.