CurrentBlue Cross Blue Shield - WisconsinPolicy 08-001

Orthodontia - Medically Necessary Orthodontia Care

Defines criteria and documentation requirements for determination of medically necessary orthodontic (orthodontia) treatment for severe handicapping malocclusions and outlines coding and review considerations for providers and plan reviewers.

Policy Summary

PayerBlue Cross Blue Shield - Wisconsin

PolicyOrthodontia - Medically Necessary Orthodontia Care

Policy CodePolicy 08-001

Change TypeNo material changes

Effective Date01/01/2026

Next Review DateN/A

Key ActionObtain preauthorization and submit required clinical documentation including completed HLD Scoring Index, treatment plan, radiographs, and photos for MNOC review.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

≥26HLD threshold

10Required documentation items

Automatic qualifiersAutomatic qualifiers

D7280–D8091Example CDT codes

Coverage Criteria for Medically Necessary Orthodontia

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Medically Necessary Orthodontia Criteria

Covered when ALL of the following are met

Provider and clinical requirement: Orthodontia and dental services must be provided by a licensed dentist or orthodontist exercising prudent clinical judgment for prevention, evaluation, diagnosis or treatment of orthodontic problems.

Supported by clinical indications and criteria requiring licensed provider.

Preauthorization: MNOC services may require preauthorization prior to initiation of any services.

Preauthorization requirement as stated in criteria.

Index threshold OR automatic qualifier: Subscriber must achieve an HLD (Handicapping Labio-Lingual Deviation) Index minimum score of 26 points (or the threshold set by state/group) OR have an automatic qualifying documented craniofacial deformity.HLD >= 26 or automatic qualifier

Handicapping esthetic diagnoses are NOT considered in determination.

Clinical presentation for impacted teeth: Partially erupted or impacted teeth due to severe crowding must show exposure of at least 3/4 of the clinical crown.>= 3/4 crown exposed

Applies when impacted/partially erupted teeth are the indication for treatment.

Indications examples: Severe handicapping malocclusions and dysfunctional occlusions such as cleft palate, severe class II or III malocclusions, severe anterior or lateral open bites, destructive deep bite impinging palatal tissues, Treacher Collins syndrome, and severe dento‑facial trauma; may include pre‑surgical orthodontics.

These examples are illustrative; documented craniofacial deformities may automatically qualify.

Coding and Index Thresholds

CDT codes listed (including but not limited to)CDT

D7280	Surgical access of an unerupted tooth
D7283	Placement of device to facilitate eruption of impacted tooth
D8010	Limited orthodontic treatment of the primary dentition
D8020	Limited orthodontic treatment of the transitional dentition
D8030	Limited orthodontic treatment of the adolescent dentition
D8040	Limited orthodontic treatment of the adult dentition
D8070	Comprehensive treatment of the transitional dentition
D8080	Comprehensive treatment of the adolescent dentition
D8090	Comprehensive treatment of the adult dentition
D8091	Comprehensive orthodontic treatment with orthognathic surgery

1–10 of 14

1/2

HLD (Handicapping Labio-Lingual Deviation) Index — threshold and use

HLD Index minimumMinimum score of 26 points (or the threshold set by each state/group)

Purpose of HLD scoringValidated, recognized index used to determine dental/medical necessity for MNOC

Alternate qualifierAutomatic qualifying documented craniofacial deformity may substitute for HLD threshold

Documentation requiredCompleted HLD Scoring Index must be submitted as part of clinical review

Provider Requirements and Review Actions

Prior Authorization

Prior Authorization Required

MNOC services may require prior authorization before any services are initiated. Providers should verify authorization requirements with the member's plan and obtain approval when required to avoid claim denials or delayed payment.

Preauthorization required when plan contract specifies review for medical/dental necessity
Confirm prior authorization rules with Blue Cross Blue Shield - Wisconsin for the member's specific group/contract

Denial Risk

Denial Risk / Contract Note

Services that do not meet the plan's definition of medical or dental necessity per the member's contract may be denied. Determinations of medical necessity do not assure benefit coverage — verify that the requested services are a covered benefit under the member's contract.

Services failing to meet HLD threshold or not meeting documented clinical criteria are at risk for denial
A medical-necessity determination does not guarantee coverage if the contract excludes the service

Documentation Required

Required Clinical Documentation

Submit complete clinical documentation to support medical necessity determinations. Incomplete or missing documentation may result in delayed review or denial.

Completed HLD (Handicapping Labio‑Lingual Deviation) Scoring Index
Comprehensive Orthodontic Treatment Plan and narrative describing the severe physically handicapping malocclusion
Panoramic and/or mounted full‑mouth radiographs; cephalometric image with tracing
Facial (frontal and profile) and intra‑oral photographs (right, left, anterior, maxillary and mandibular occlusal)
Photographs of articulated study models or ortho CAD/CAM electronic equivalents (lateral, anterior, posterior views)
When surgery is planned, include surgical treatment plan and letter of medical necessity

Note

Provider Action — Ensure Medical/Dental Necessity and Complete Submission

Provider action: ensure submitted services meet medical/dental necessity criteria (including HLD scoring threshold of 26 points or state/group-specific threshold, or presence of an automatic qualifying condition) and include all required documentation to support the request.

Use validated, recognized index criteria (HLD) to determine eligibility; HLD minimum score = 26 points unless group/state threshold differs
Partially erupted/impacted teeth must show exposure of at least 3/4 of the clinical crown when applicable
Orthodontia must be provided by a licensed dentist or orthodontist exercising prudent clinical judgment

Background on Medically Necessary Orthodontia

The intent of Medically Necessary Orthodontia Care (MNOC) is to treat severe handicapping malocclusions where failure to treat would adversely affect function or overall health. MNOC is focused on conditions that markedly interfere with mastication, speech, or the ability to maintain oral hygiene and often involves complex cases that may require combined pre-surgical orthodontics and surgery. Examples of qualifying diagnoses include cleft palate, severe lateral or anterior open bite deformities, severe Class II malocclusion with destructive deep bite impinging palatal tissues, Class III malocclusions, Treacher Collins syndrome, and severe dento-facial trauma. Documented craniofacial deformities that create a handicapping malocclusion are considered automatic qualifiers for MNOC.

Definitions

Handicapping malocclusion / MNOC — definition and scope

DefinitionA severe malocclusion that severely interferes with function (mastication, speech, oral hygiene) often due to underlying craniofacial abnormalities; may require combined pre-surgical orthodontics and surgery.

Automatic qualifiersDocumented craniofacial deformities (e.g., cleft palate, Treacher Collins, severe class II/III, severe open bites, severe dento-facial trauma) automatically qualify for MNOC

Functional scopeIncludes dysfunctional occlusions that impair eating, speech, or oral hygiene and where failure to treat would adversely affect overall health

ExclusionsHandicapping esthetic diagnoses and cosmetic orthodontia (minor, non-dysfunctional malocclusion corrections) are not considered medically necessary