D2989ADA CDT ProcedureRestorativeOTHER RESTORATIVE SERVICES

D2989 - Excavation Non-Res

Excavation resulting in non-restorability.

Patient-Friendly Summary: Careful diagnostic excavation of deep decay to determine whether a severely compromised tooth can be saved. If the tooth is found to be non-restorable, we will discuss comfortable, gentle options for replacement.
Clinical Documentation Notes: Not a covered benefit.
Procedure Code
D2989
Clinical Category
Restorative
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 D2989.

Source: Delta Dental 2026
Frequency Limitation
Subject to group/individual contract frequency limitations (none)

Required Claim Attachments & Pre-Submission Checklist

  • Standard ADA claim form with CDT procedure code and date of service

Bill When (Allowable Clinical Criteria)

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

Restrictions & Clinical Exclusions

  • The fees for buildups are not billable to the patient when buildups are performed in conjunction with inlays, ¾ crowns or onlays.
  • Fees for repairs are not billable to the patient within 24 months of the original restoration by the same dentist/dental office. Benefits are denied if done by a different dentist/dental office.
  • Infection control is included in the fee for the dental services provided. Separate fees are not billable to the patient.
  • Benefits for restorations for altering occlusion, adjusting vertical dimension, replacing tooth structure lost by attrition, erosion, abrasion, abfraction, corrosion, TMD or for periodontal, orthodontic or other splinting are denied, unless covered by group/individual contract.
  • Benefits for biomimetic restorations (e.g. Biodentine) are denied as investigational.
  • For benefit purposes, local anesthesia is an integral part of the procedure being performed and additional fees are not billable to the patient.

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 D2989 (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 D2989.

Frequently Asked Questions — D2989 (Excavation Non-Res)

Quick answers for dental billers and treatment coordinators submitting claims for D2989.

What ICD-10 diagnosis codes link to dental procedure D2989?▾

Currently no specific ICD-10 crosswalk mappings recorded for CDT D2989.

Can CDT code D2989 be billed to medical insurance?▾

Billing CDT D2989 (Excavation Non-Res) 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 D2989?▾

Required claim attachments for CDT D2989 (Excavation Non-Res) include: Standard ADA claim form with CDT procedure code and date of service.

What is the insurance frequency limitation for CDT D2989?▾

Standard commercial insurance frequency for D2989: Subject to group/individual contract frequency limitations (none).

What are common insurance denial reasons and appeal tips for CDT D2989?▾

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.