CDT D2392: Post 2 Surface Resin-Based Composite

CDT code D2392 represents a posterior dental restoration using a resin‑based composite placed on two surfaces of a tooth. This restorative procedure is commonly performed in dental offices and is a routine element of oral health care, addressing caries, fractures, and other structural tooth damage. Nationally, accurate coding for multi‑surface composite restorations affects claims processing, patient cost‑sharing, and reporting of dental service utilization.

Major commercial payers referenced include Aetna, Blue Cross Blue Shield, Cigna Health, and UnitedHealthcare. Coverage policies and coding guidance from these payers influence reimbursement pathways and prior authorization practices for restorative dental services.

Readers will find a concise explanation of the clinical indication and procedural scope of D2392, comparisons to closely related CDT codes for single and multi‑surface composite restorations, and a summary of payer coverage considerations and common claim modifiers. The publication also outlines typical sites of service and clinical contexts in which the code is used. If specific fee schedules or payer policy details are sought, note that payer policies vary and plan‑level information is required for precise reimbursement figures.

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Billing Code Overview

CDT code D2392 describes a post 2 surface resin‑based composite, a dental restorative service used to repair or restore posterior teeth with two surfaces affected by decay or damage. The procedure involves placement of a tooth‑colored resin composite material to rebuild the tooth structure and restore function and esthetics.

Service Type: Dental restorative service

Typical Site of Service: Dental Office (POS 11)

National Reimbursement Benchmarks

National commercial mean rates vary by payer, with UnitedHealthcare and Blue Cross Blue Shield above the BUCA commercial average and Cigna Health and Aetna below it. Medicare benchmarks are not provided in the input, while the BUCA commercial average mean rate ($111.47) sits between the lower commercial means (Cigna Health $83.72, Aetna $89.62) and the higher commercial means (Blue Cross Blue Shield $141.42, UnitedHealthcare $154.65). The table and chart below present the full breakdown.

Rate dispersion, measured as the difference between the 75th and 25th percentiles, is widest for Blue Cross Blue Shield (difference $53.00) and UnitedHealthcare (difference $35.55), indicating broader variation in allowed rates. Dispersion is tightest for Cigna Health (difference $15.00) and Aetna (difference $17.00). The table and chart below present the full breakdown.

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CDT D2392: Post 2 Surface Resin-Based Composite

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Billing Code Overview

Service Type: Dental restorative service

Typical Site of Service: Dental Office (POS 11)

National Reimbursement Benchmarks

National Mean Allowed Rates for CDT code D2392 by Payer

Clinical & Coding Specifications

Clinical Context

A 42-year-old patient presents to a dental office with a symptomatic posterior tooth diagnosed with dental caries and a failing or previously placed post and core. After clinical and radiographic evaluation, the dentist determines the tooth requires replacement of an existing post using a resin-based composite material that restores two surfaces. The patient is seated in the dental operatory (POS 11). Local anesthesia is administered as needed, the existing restoration and post are removed, the post space is prepared, and a resin‑based composite post reconstruction for two tooth surfaces is placed and contoured. Postoperative instructions are given and appropriate follow-up is scheduled. The workflow involves clinical assessment, radiographic review, removal of previous materials, isolation, placement of the resin‑based composite post for two surfaces (CDT code D2392), occlusal adjustment, and documentation of findings and procedure performed.

Related Codes

D2391 - Post 1 surface resin‑based composite
- Clinical relation: Used when a post reconstruction using resin‑based composite involves a single surface rather than two. In the same clinical workflow, D2391 is an alternative when less tooth structure requires restoration.
D2394 - Post ≥4 surface resin‑based composite
- Clinical relation: Represents a more extensive post reconstruction involving four or more surfaces. It may be used when the clinical defect and restoration complexity exceed the scope of D2392. D2394 is an alternative for larger restorations and may be selected instead of D2392 when documentation supports greater surface involvement.

D3310 – Endodontic therapy, anterior tooth (excluding final restoration)

D1208-TOPICAL-APPLICATION-OF-FLUORIDE-EXCLUDING

D1208 – Topical application of fluoride - excluding varnish

D2393-RESINBASED-COMPOSITE-THREE-SURFACES

CPT D2393: Resin-Based Composite Restoration, Three Surfaces, Posterior

D4910-PERIODONTAL-MAINTENANCE

CPT D4910: Periodontal Maintenance Procedures

D1110-PROPHYLAXIS-ADULT-CLEANING-AND-POLISHING-OF-THE

CPT D1110: Adult Dental Cleaning and Polishing

D1206-TOPICAL-FLUORIDE-TREATMENT-EXCEPT-VARNISH-THERAPEUTIC

CPT D1206: Topical Fluoride Treatment for Moderate to High Caries Risk Patients

D2140-AMALGAM-ONE-SURFACE-PRIMARY-OR

CPT D2140: Amalgam Restoration, One Surface, Primary or Permanent Tooth

D2160-AMALGAM-THREE-SURFACES-PRIMARY-OR

CPT D2160: Amalgam Filling, Three Surfaces, Primary or Permanent Tooth

D1120-

CPT D1120: Prophylaxis for Children, Preventive Dental Cleaning

D2391-RESINBASED-COMPOSITE-ONE-SURFACE

CPT D2391: Resin-Based Composite Restoration, One Surface, Posterior Tooth

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References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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