Orthognathic Surgery
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Clinical policy governing medical necessity determinations for orthognathic surgery (surgical correction of mandibular and/or maxillary deformities) for Network Health members; applies to Utilization Management Coordinators and clinicians performing reviews.
No material clinical or coverage changes in this revision.
Coverage Criteria — Orthognathic Surgery
inv-01: Medical necessity criteria
Covered when ALL of the following are met:
UMC-RN to verify documentation of deformity and functional impairment and confirm benefit coverage per the member's coverage document.
Before approving orthognathic surgery, verify the member's benefit coverage because orthognathic surgery may be contractually excluded for some plans. Provider requests should be reviewed against the member's specific coverage document (e.g., Certificate of Coverage, Evidence of Coverage, Summary Plan Description), which takes precedence over this clinical policy when determining eligibility.
Utilization Management Coordinators must consult the member's plan language and applicable state or federal requirements (including CMS NCDs/LCDs for Medicare members) as part of the coverage determination. If the coverage document excludes orthognathic surgery, the request may be denied regardless of clinical indications.
An annual review of this policy was completed, including reference updates and CPT code verification. No changes were made to the intention or utilization of this policy; the policy continues to apply as previously established.
Coding and Severity Thresholds
| No codes listed |
Provider Actions and Authorization Requirements
Prior authorization depends on documented significant functional impairment
Prior authorization determinations must be based on documentation that the member has a documented significant physical functional impairment of the jaw; the UMC‑RN should review clinical documentation demonstrating the impairment and confirm benefit coverage in the member's coverage document when making the prior authorization decision.
- UMC‑RN to verify documented significant physical functional impairment of the jaw.
- UMC‑RN must consult the member's coverage document (Certificate of Coverage, Evidence of Coverage, Summary Plan Description) as it takes precedence over this clinical policy.
Ensure deformity exceeds dental/orthodontic correction and conservative care considered
Before approving surgery, the reviewer must confirm the deformity is of a severity that cannot be adequately corrected with dental and/or orthodontic treatment alone and that conservative options or prior treatments have been evaluated.
- Severity must be beyond what dental/orthodontic treatment alone can correct.
- Conservative care and prior dental/orthodontic treatments should be considered as part of the medical necessity assessment.
Obtain and confirm clinical findings and benefit coverage
The UMC‑RN must obtain and document: evidence of a significant facial skeletal deformity of the mandible and/or maxilla; clinical documentation of associated physical functional impairment of the jaw (e.g., significant masticatory dysfunction); and confirmation that the member's plan includes coverage for orthognathic surgery by consulting the member's coverage document.
- Documented significant facial skeletal deformity of the mandible and/or maxilla.
- Clinical evidence of physical functional impairment of the jaw (such as substantial masticatory dysfunction).
- Verification of benefit coverage for orthognathic surgery in the member's coverage document, which takes precedence over clinical policy.
Risk of denial if surgery is contractually excluded — check benefit documents
Requests may be denied if orthognathic surgery is contractually excluded by the member's benefit plan; the UMC‑RN must refer to and confirm exclusions in the individual's coverage document before approving services.
- Consult the member's Certificate of Coverage, Evidence of Coverage, or Summary Plan Description for exclusions.
- Coverage document takes precedence over this clinical policy and must be considered first in determining coverage eligibility.
Background
Orthognathic surgery is the surgical correction of abnormalities of the mandible, maxilla, or both that are congenital, developmental, or post‑traumatic in origin. These deformities contribute to significant masticatory dysfunction and/or functional impairment of the jaw and are of a severity that cannot be adequately treated with dental and/or orthodontic therapy alone. This policy is intended to guide Utilization Management Coordinator Registered Nurses (UMC‑RNs) in evaluating medical necessity for orthognathic procedures based on documented significant physical functional impairment of the jaw.
Definitions
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