D6610ADA CDT ProcedureProsthodonticsPARTIAL DENTURE PONTICS - Inlays/Onlays

D6610 - Onlay Retain HN

Retainer Onlay - cast high noble (2 surf).

Patient-Friendly Summary: This treatment places a two-surface high-noble gold onlay that rebuilds biting cusps and anchors a bridge. It is recommended for back teeth where superior durability, precise fit, and gentle contact with opposing teeth are needed. The placement is comfortable and ensures long-lasting tooth protection.
Clinical Documentation Notes: Not a covered benefit.
Procedure Code
D6610
Clinical Category
Prosthodontics
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 D6610.

Source: Delta Dental 2026
Frequency Limitation
1 per tooth/space in a 60-month interval (5 years) (rolling_12_months)
Age Limitation Criteria
Restricted to patients age 16 or older (complete skeletal development required).

Required Claim Attachments & Pre-Submission Checklist

  • Pre-operative treatment narrative and clinical rationale

Bill When (Allowable Clinical Criteria)

  • Indicated for medically and clinically necessary treatment as documented in patient's dental record.

Restrictions & Clinical Exclusions

  • Fixed partial denture prosthetic procedures include the routine use of temporary prosthetics during the time for normal laboratory fabrication of the completed prosthesis. Participating dentists have agreed that these temporary prostheses are part of the fee for the fixed prosthetic device. Fees for interim or provisional appliances are not billable to the patient when reported less than six months prior to placement of the permanent prosthesis.
  • For benefit purposes, anesthesia is an integral part of the procedures being performed and additional fees are not billable to the patient.
  • A posterior fixed bridge and partial denture are not benefits in the same arch within the frequency limitations. Benefit is limited to the allowance for the partial denture.
  • Fixed prosthodontics are not a benefit for children under 16 years of age. Benefits for children under age 16 are denied.
  • Benefits for porcelain and resin inlay bridges are denied.
  • The fees for indirectly fabricated restorations and prosthetic procedures include all models, temporaries, laboratory charges and materials, and other associated procedures. Any fees charged for these procedures by the same dentist/dental office in excess of the approved amounts for the indirectly fabricated restorations or prosthetic procedures are not billable to the patient on same date of service.

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 D6610 (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 D6610.

Frequently Asked Questions — D6610 (Onlay Retain HN)

Quick answers for dental billers and treatment coordinators submitting claims for D6610.

What ICD-10 diagnosis codes link to dental procedure D6610?▾

Currently no specific ICD-10 crosswalk mappings recorded for CDT D6610.

Can CDT code D6610 be billed to medical insurance?▾

Billing CDT D6610 (Onlay Retain HN) 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 D6610?▾

Required claim attachments for CDT D6610 (Onlay Retain HN) include: Pre-operative treatment narrative and clinical rationale.

What is the insurance frequency limitation for CDT D6610?▾

Standard commercial insurance frequency for D6610: 1 per tooth/space in a 60-month interval (5 years) (rolling_12_months). Age criteria: Restricted to patients age 16 or older (complete skeletal development required)..

What are common insurance denial reasons and appeal tips for CDT D6610?▾

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.