CurrentBlue Cross Blue Shield - NevadaPolicy 09-201

Inhalation and Local Anesthesia (2023 Policy)

Defines medical necessity, monitoring, documentation, and coverage principles for local anesthesia, regional/trigeminal blocks, moderate/conscious sedation, deep sedation/general anesthesia, and nitrous oxide for dental procedures; ties benefits to covered underlying dental/medical services and state/contract mandates.

Policy Summary

PayerBlue Cross Blue Shield - Nevada

PolicyInhalation and Local Anesthesia (2023 Policy)

Policy CodePolicy 09-201

Change TypeRevised (last review 11/11/2022)

Effective Date

Next Review Date

Key ActionVerify member contract benefits and submit medical documentation supporting the need for general anesthesia or conscious/IV sedation, including failed local anesthesia attempts when applicable.

SourceLink

POLICY UPDATE CHANGES

Policy status marked as Revised and last review date 11/11/2022.

MultipleCovered Indications

CDT 2023Informational Code List

Monitoring & docsOperational Requirements

Coverage Summary

Defines medical necessity, monitoring, documentation, and coverage principles for local anesthesia, regional/trigeminal blocks, moderate/conscious sedation, deep sedation/general anesthesia, and nitrous oxide for dental procedures; ties benefits to covered underlying dental/medical services and state/contract mandates.

Medical-Necessity and Coverage Criteria

Local Anesthesia

Coverage position:

Administration of local anesthetic (traditional, electronic, buffered, etc.) is considered inclusive of all dental procedures and is not eligible for a separate benefit unless a specific plan allows coverage.

Regional and Trigeminal Division Block Anesthesia

Coverage position:

Regional and trigeminal block anesthesia may not be a covered service.

Deep Sedation/General Anesthesia, IV Moderate (Conscious) Sedation, Non‑IV Conscious Sedation

Coverage position and required documentation:

These procedures may be covered when performed in conjunction with covered dental services and when medical documentation supports the need.

Member must satisfy one of the specific indications listed in the Medically Necessary Anesthesia Services tree (child with complex needs; medically/physically compromised; uncooperative/behavioral; ineffective local anesthesia; extensive trauma).

When advanced anesthetics (IV or inhalation) are used to induce more profound levels of anesthesia, additional individuals trained in Basic Life Support for Healthcare Providers must be present in addition to the dentist/oral surgeon.

If required by state, current equipment inspection certificate, sedation license and CPR certification are mandatory.

Office anesthesia in excess of 60 minutes for any dental or surgical procedure requires written rationale/documentation including X‑rays, progress notes, operative report and a complete anesthesia record indicating start and stop times of incremental drug administration.

The time of general anesthesia begins when the dentist starts administering the sedative agent and non‑invasive monitoring protocol; services are considered complete when the patient may be safely left under observation of trained personnel.

Inhalation of Nitrous Oxide/Analgesia

Coverage position, indications and contraindications:

Nitrous oxide procedures may be covered when appropriate and in conjunction with covered dental services.

Nitrous oxide may be indicated for ONE of

Ineffective local anesthesia administration
Treatment of dental anxiety
Special needs patients
Individuals who are uncooperative or behaviorally challenged

Nitrous oxide is contraindicated for ONE of

Monitoring and Documentation Requirements

Providers must adhere to the following monitoring and documentation standards:

A dentist or an appropriately trained individual must remain in the operatory during active dental treatment to continuously monitor the patient's vital signs until discharge criteria are met.

Monitoring must include observation of proper oxygenation (color of mucosa/skin) and oxygen saturation by oximetry; respirations (chest movement) must be continually observed and documented.

Circulation: blood pressure and heart rate must be evaluated pre‑op, intra‑op and post‑op and properly documented.

An appropriate, complete anesthesia record must be maintained including names of all drugs administered, time and dosages, and all physiological parameters.

Dentist administering anesthesia must remain in constant attendance with the patient until completion of the anesthesia procedure.

Provider Actions & Documentation Requirements

Prior Authorization

Coverage tied to covered underlying services and contract/state mandates

Coverage for anesthesia is available only when associated with underlying dental or medical services that are covered under the member's benefits plan or when required by state mandate. Verify the member's contract benefits prior to rendering anesthesia services; contract or state mandates take precedence over this policy.

Documentation Required

Medical support documentation for anesthesia

Submit medical documentation from the oral surgeon, dentist and/or physician that supports the medical conditions necessitating general anesthesia or conscious sedation. When local anesthesia has failed, include documentation of failed local anesthesia attempts. This documentation is required to substantiate medical necessity for advanced anesthetic services.

Include failed local anesthesia attempts where applicable

Documentation Required

Anesthesia record and monitoring documentation

Maintain a complete anesthesia record that documents all drugs administered (names, times, and dosages) and continuous physiologic monitoring. Monitoring and documentation must include oxygenation (including oximetry), respirations (observed chest movement), and circulation (blood pressure and heart rate) recorded pre‑operative, intra‑operative and post‑operative.

Record names of all drugs, times of administration and dosages
Document oxygenation and oximetry continuously
Document respirations and observed chest movement
Document blood pressure and heart rate pre/intra/post‑op

Documentation Required

Extended anesthesia (>60 minutes) justification

For office anesthesia that exceeds 60 minutes, provide written rationale and supporting documentation to justify the extended duration.

Written rationale for extended anesthesia time
Associated X‑ray images
Progress notes
Operative report
Complete anesthesia record with start/stop times of incremental drug administration

Documentation Required

Provider qualifications and facility requirements

Ensure appropriate provider qualifications and facility requirements when administering advanced anesthetics. Additional personnel trained in Basic Life Support for Healthcare Providers must be present for IV or inhalation advanced anesthetics. If required by state regulation, retain current equipment inspection certificate, sedation license and CPR certification. The dentist is responsible for drug management, facility and staff adequacy, emergency equipment, drugs and protocols.

Additional BLS‑trained personnel present for IV/inhalation advanced anesthetics
Maintain equipment inspection certificate when required by state
Maintain sedation license when required by state
Maintain current CPR certifications

Background and Definitions

Policy outlines clinical indications and appropriateness for local/regional blocks, conscious sedation, deep sedation/general anesthesia and nitrous oxide in dental practice. Coverage is contingent on the anesthesia being performed in conjunction with underlying dental or medical services that are covered under the member's plan or when required by state mandate. Providers must be appropriately educated, trained and licensed and follow standard sedation and monitoring guidelines including ADA and AAP/AAPD recommendations, with specific pediatric guidance for children (referencing AAP/AAPD guidance for patients 12 and under and contract/state‑defined pediatric age limits).

Medically/Dentally Necessary: Services consistent with the member's diagnosis/condition to treat life‑threatening condition or pain, achieve functional dentition, or treat injury/illness/infection related to the dentition; consistent with generally accepted standards of dental practice.

D9210	local anesthesia not in conjunction with operative or surgical procedures
D9211	regional block anesthesia
D9212	trigeminal division block anesthesia
D9215	local anesthesia in conjunction with operative or surgical procedures
D9219	evaluation for deep sedation or general anesthesia
D9222	deep sedation/general anesthesia first 15 minutes
D9223	deep sedation/general anesthesia each 15 minute increment
D9230	inhalation of nitrous oxide/analgesia, anxiolysis
D9239	intravenous moderate (conscious) sedation/analgesia first 15 minutes
D9243	intravenous moderate (conscious) sedation/analgesia each 15 minute increment

OpenPayer

Inhalation and Local Anesthesia (2023 Policy)

Coverage Summary

Medical-Necessity and Coverage Criteria

CDT Codes (informational)

Provider Actions & Documentation Requirements

Background and Definitions

Revision History