D9211ADA CDT ProcedureAdjunctiveANESTHESIA

D9211 - Regional Block

Regional block anesthesia.

Patient-Friendly Summary: This specialized injection numbs an entire quadrant of your mouth by targeting a primary nerve pathway in the jaw. It is recommended to provide profound, reliable pain control for deep dental cleanings, extractions, or multiple restorations in one area. Aside from a momentary pinch, you will experience complete numbness that ensures a painless procedure.
Clinical Documentation Notes: Not a covered benefit. Integral to operative/surgical procedures.
Procedure Code
D9211
Clinical Category
Adjunctive
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 D9211.

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

  • General anesthesia and intravenous sedation are limited to one hour. Any additional minutes are not billable to the patient unless clinical documentation (e.g., anesthesia record) supports more than an hour was necessary.
  • Infection control is included in the fee for the dental services provided. Separate fees are not billable to the patient.
  • General anesthesia and intravenous sedation are limited to one hour. Any additional minutes are not billable to the patient unless clinical documentation supports more than an hour was necessary. For example, special health care needs patients may require additional units of anesthesia and may be a benefit according to group/individual contract.
  • All services and treatment provided remotely via tele-health modalities, be they synchronous or asynchronous, must be performed by a licensed dentist or their supervised staff, acting within the scope of applicable law. Services and treatment delivered virtually are only a benefit when the elements included in the descriptor of the CDT procedure code are completed and only when they meet generally accepted clinical guidelines.
  • 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 contract.

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 D9211 (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 D9211.

Frequently Asked Questions — D9211 (Regional Block)

Quick answers for dental billers and treatment coordinators submitting claims for D9211.

What ICD-10 diagnosis codes link to dental procedure D9211?▾

Currently no specific ICD-10 crosswalk mappings recorded for CDT D9211.

Can CDT code D9211 be billed to medical insurance?▾

Billing CDT D9211 (Regional Block) 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 D9211?▾

Required claim attachments for CDT D9211 (Regional Block) include: Standard ADA claim form with CDT procedure code and date of service.

What is the insurance frequency limitation for CDT D9211?▾

Standard commercial insurance frequency for D9211: Subject to group/individual contract frequency limitations (none).

What are common insurance denial reasons and appeal tips for CDT D9211?▾

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.