CurrentUnitedHealthcarePolicy CS088.W

Orthognathic (Jaw) Surgery

Defines UnitedHealthcare coverage criteria for orthognathic (jaw) surgery as reconstructive and medically necessary when specified skeletal deformities associated with malocclusion and documented functional impairments are present; excludes surgery for obstructive sleep apnea or TMJ disorders and cosmetic-only indications. Includes lists of applicable CPT/CDT codes for reference.

Policy Summary

PayerUnitedHealthcare

PolicyOrthognathic (Jaw) Surgery

Policy CodePolicy CS088.W

Change TypeCodes updated; template/state language removed

Effective DateFebruary 1, 2026

Next Review Date

Key ActionProviders must supply medical records documenting skeletal measurements and evidence of one or more functional impairments to determine medical necessity.

POLICY UPDATE CHANGES

Applicable CDT codes list updated to reflect annual edits and revised descriptions for D5934 and D5935.

Removed content/language pertaining to the state of Louisiana.

Archived previous policy version CS088.V; removed content/language pertaining to the state of Louisiana (04/01/2026).

1Applies to national standard plans (state exceptions exist)

≥1Required functional impairments for coverage

MultipleApplicable CPT/CDT codes listed

Coverage Summary

Defines UnitedHealthcare coverage criteria for orthognathic (jaw) surgery as reconstructive and medically necessary when specified skeletal deformities associated with malocclusion and documented functional impairments are present; excludes surgery for obstructive sleep apnea or temporomandibular joint disorders and cosmetic-only indications. Includes lists of applicable CPT/CDT codes for reference.

Surface thresholds

Horizontal overjet (incisor relationship)>= 5 mm or 0 to negative value

Anteroposterior molar discrepancy>= 4 mm (norm 0 to 1 mm)

Open bite (posterior)> 2 mm (unilateral or bilateral)

Asymmetry> 3 mm with concomitant occlusal asymmetry

Vertical/transverse deformity>= two standard deviations from published norms

Maxillary palatal cusp to mandibular fossa discrepancy>= 4 mm bilateral or >= 3 mm unilateral

Provider Actions & Documentation Requirements

Documentation Required

Medical records to support criteria

Providers must supply medical records documenting skeletal measurements (overjet, molar discrepancy, open bite, asymmetry, standard deviation from norms) and evidence of one or more functional impairments (masticatory/swallowing dysfunction or speech impairment) to determine medical necessity.

Horizontal overjet (incisor relationship): ≥ 5 mm or 0 to negative value
Anteroposterior molar discrepancy: ≥ 4 mm (norm 0 to 1 mm)
Posterior open bite: > 2 mm (unilateral or bilateral)
Asymmetry: > 3 mm
Vertical/transverse deformity: ≥ two standard deviations from published norms

Documentation Required

Refer to other policies where applicable

Do not use this policy for surgical treatment of obstructive sleep apnea or temporomandibular joint disorders; submit documentation per the respective UnitedHealthcare policies for those conditions.

Applicable CPT / CDT procedure codes (reference list)

Applicable CPT / CDT procedure codes (reference list)mixed

21076	Impression and custom preparation; surgical obturator prosthesis.
21079	Impression and custom preparation; interim obturator prosthesis.
21080	Impression and custom preparation; definitive obturator prosthesis.
21081	Impression and custom preparation; mandibular resection prosthesis.
21082	Impression and custom preparation; palatal augmentation prosthesis.
21083	Impression and custom preparation; palatal lift prosthesis.
21120	Genioplasty; augmentation (autograft, allograft, prosthetic material).
21121	Genioplasty; sliding osteotomy, single piece.
21122	Genioplasty; sliding osteotomies, 2 or more osteotomies (e.g., wedge excision or bone wedge reversal for asymmetrical chin).
21123	Genioplasty; sliding, augmentation with interpositional bone grafts (includes obtaining autografts).

1–10 of 72

1/8

Background & Evidence

Orthognathic surgery corrects skeletal abnormalities of the mandible, maxilla, or both to improve facial form and physiologic function and is often combined with orthodontics (AAOMS). The policy references AAOMS indications and cites systematic reviews evaluating masticatory function, long-term stability, and complication rates following orthognathic procedures.

Citation	Finding
Bunpu et al. 2023 systematic review	Orthognathic surgery improves masticatory performance but may not reach normal occlusion; 21 studies, 1,238 individuals.
Mulier et al. 2021 systematic review	Limited-quality evidence suggests variability in long-term dental/dentolabial stability; follow-up 5-15 years.
Wei et al. 2018 systematic review	Surgery-first approach may yield poorer postoperative stability than orthodontics-first; 12 observational studies, 498 participants.
Haas Junior et al. 2017 systematic review	Segmental Le Fort I osteotomy complication rate reported ~8.5% in selected studies.

Key definitions

Cosmetic ProceduresProcedures or services that change or improve appearance without significantly improving physiological function.

Functional or Physical ImpairmentDeviation from normal function causing significantly limited capacity to move, coordinate actions, or perform physical activities, exhibited by difficulties in physical/motor tasks, independent movement, or basic life functions.

Reconstructive ProceduresProcedures primarily to treat a medical condition or improve/restore physiologic function related to injury, sickness, or congenital anomaly; primary result is not changed appearance.

Revision History

04/01/2026revisedLatest

Archived previous policy version CS088.V; Applicable CDT codes list updated to reflect annual edits and revised descriptions for D5934 and D5935.

04/01/2026removed

Template update: Removed content/language pertaining to the state of Louisiana.