CurrentBlue Cross Blue Shield - WisconsinPolicy 08-001

Orthodontia - Medically Necessary Orthodontia Care

Defines criteria and documentation requirements for determining medical necessity of orthodontic treatment for Blue Cross Blue Shield - Wisconsin members; applies to dental providers requesting coverage determination and prior authorization where required.

Policy Summary

PayerBlue Cross Blue Shield - Wisconsin

PolicyOrthodontia - Medically Necessary Orthodontia Care

Policy CodePolicy 08-001

Change TypeNo material change

Effective DateJan 1, 2025

Next Review DateJan 1, 2025

Key ActionObtain preauthorization and submit required documentation including completed HLD Scoring Index and full clinical records to support MNOC determination.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

≥26HLD threshold

10Required docs

YesAutomatic qualifiers

14CDT codes

Coverage Criteria

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

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

Submit required documentation and HLD score to support qualification when prior authorization is required.

HLD index or automatic qualifier: Subscriber must achieve a 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 that creates a handicapping malocclusion.HLD ≥ 26

Handicapping esthetic diagnoses are not considered part of the determination.

Impacted/partially erupted teeth criterion: If partially erupted/impacted teeth are present due to severe crowding, exposure of at least 3/4 of the clinical crown must be shown.≥ 3/4 crown exposed

Effectiveness and intent: Treatment must be effective for the patient’s dental injury or disease, not primarily cosmetic, and may be pre-surgical to prepare for orthognathic surgery or to treat dysfunctional occlusions.

Cosmetic orthodontia care and minor corrections of malocclusion that are not dysfunctional are not considered medically necessary. The plan distinguishes between treatment intended to address functional impairment and treatment purely for esthetic improvement; services whose primary purpose is cosmetic correction of alignment or appearance (including minor malocclusion corrections) do not meet coverage criteria.

Handicapping esthetic diagnoses and malocclusion that is not dysfunctional are not included in determinations of medical necessity. A handicapping malocclusion for MNOC must substantially interfere with function (mastication, speech, or oral hygiene); by contrast, malocclusion solely affecting appearance or involving only minor corrections is considered cosmetic and excluded from coverage consideration.

Coding and Thresholds

CDT codes (informational)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 Index threshold — Minimum score to qualify

HLD Index thresholdMinimum Handicapping Labio-Lingual Deviation (HLD) Index score of 26 points to qualify (or the threshold set by the state/group)

Alternative to HLD thresholdAutomatic qualifying documented craniofacial deformity may substitute for HLD score

Purpose of thresholdValidated, recognized index criteria (HLD) used to determine dental/medical necessity for MNOC

Exclusion noteHandicapping esthetic diagnoses are not considered part of the determination

Provider Actions and Requirements

Prior Authorization

Prior Authorization Required

Medically Necessary Orthodontia services may require preauthorization prior to initiation. Submit required clinical documentation (see Documentation callout) and a completed HLD (Handicapping Labio‑Lingual Deviation) score to support MNOC review prior to starting treatment.

Preauthorization required when contract or group benefits dictate review prior to initiation.
Include completed HLD Scoring Index (minimum qualifying score: 26 points or the threshold set by the state/group) or documentation of an automatic qualifying condition.

Note

Provider Note

(Provider-facing callout placeholder) — retained for author to populate additional provider-specific directions or contact information.

Documentation Required

Required Clinical Documentation for MNOC Review

The following clinical documentation is required for MNOC review: provide a clear, legible copy of each item.

Completed HLD (Handicapping Labio‑Lingual Deviation) Scoring Index.
Orthodontic treatment plan detailing proposed procedures and timeline.
Narrative describing the nature of the severe physically handicapping malocclusion.
Panoramic and/or mounted full‑mouth radiographic images.
Cephalometric radiograph with teeth in centric occlusion and accompanying cephalometric tracing.
Facial photographs (frontal and profile).
Intra‑oral photographs showing right and left occlusal relationships and an anterior view.
Maxillary and mandibular occlusal photographs.
Photographs of articulated study models or ortho CAD/CAM electronic equivalents including lateral, anterior, and posterior views.
If surgery is planned, include the surgical treatment plan and a letter of medical necessity.

Denial Risk

Coverage Contingent on Contract Language

Coverage determinations for medically necessary orthodontia apply only when the member's contract permits medical/dental necessity review. A finding of medical necessity does not guarantee coverage or payment if the member's contract excludes the service or limits benefits.

Determinations apply only for contracts that allow medical/dental necessity review.
A medical necessity determination may still be non‑covered under the member's specific contract language.

Background

Medically Necessary Orthodontia Care (MNOC) is intended to treat severe handicapping malocclusions where failure to treat would adversely affect function or health. MNOC addresses dysfunctional occlusions, may be used as pre-surgical orthodontic preparation for orthognathic surgery, and must be provided by a licensed dentist or orthodontist exercising prudent clinical judgment. Coverage requires demonstration of functional impairment (for example via the HLD Index threshold or an automatic qualifying craniofacial deformity) and is not intended for cosmetic-only treatment.

Definitions

Handicapping malocclusion / MNOC — definition and examples

DefinitionA severe malocclusion that substantially interferes with function (mastication, speech, ability to maintain oral hygiene), often due to an underlying craniofacial abnormality; typically requires treatment to prevent deleterious effects to overall health or to sustain life.

Examples (automatic qualifiers)Cleft palate; Treacher Collins Syndrome; documented craniofacial deformities that create a handicapping malocclusion

Severe clinical presentationsSevere lateral or anterior open bite deformities; severe Class II with impingement of lower incisors into palatal tissues (deep destructive bite); Class III malocclusions (severe underbite); severe dento-facial trauma

Clinical implicationsOften requires combination of pre-surgical orthodontics and surgery; orthodontic services alone may be insufficient in severe cases