CurrentUnitedHealthcarePolicy CS023TN.P

Computerized Dynamic Posturography (for Tennessee Only)

Policy governing use of computerized dynamic posturography (CDP) for Medicaid and CoverKids members in Tennessee; defines coverage stance and supporting evidence for evaluating balance/vestibular disorders.

Policy Summary

PayerUnitedHealthcare

PolicyComputerized Dynamic Posturography (for Tennessee Only)

Policy CodePolicy CS023TN.P

Change TypeRevised clinical evidence and references

Effective DateApr 1, 2025

Next Review Date

Key ActionDo not submit claims for CDP as medically necessary for evaluation of any condition; include appropriate procedure codes on claims and reconcile with state/federal/contractual benefit terms.

SourceLink

POLICY UPDATE CHANGES

Updated Clinical Evidence and References sections to reflect the most current information; archived previous policy version CS023TN.O.

92548,92549CPT codes listed for CDP procedures

TennesseeState-specific application

Not medically necessaryCoverage rationale for CDP

2025-04-01Policy effective date

Coverage Criteria for Computerized Dynamic Posturography (CDP)

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inv-01: Not Medically Necessary

Not covered — CDP is unproven and not medically necessary. The following statement applies.

Not Medically Necessary: Computerized dynamic posturography (CDP) testing is unproven and not medically necessary for evaluating any condition, including but not limited to balance disorders, due to insufficient evidence of efficacy.

Applies to evaluation of vestibular and other balance-related disorders; lack of well‑designed trials demonstrating diagnostic utility or improvement in patient‑relevant outcomes.

Computerized dynamic posturography (CDP) testing, also called balance board testing or equilibrium platform testing (EPT), is not considered medically necessary for evaluating any condition. This policy excludes CDP from coverage across indications because the evidence does not support its efficacy in clinical evaluation or management.

CDP is considered unproven and not medically necessary for the evaluation of conditions including, but not limited to, balance disorders. The peer-reviewed literature provides weak evidence overall, with a lack of well-designed trials demonstrating CDP’s diagnostic utility compared with standard vestibular tests and insufficient evidence of consistent, beneficial effects on patient‑relevant outcomes.

Provider Actions, Authorization, and Claims Guidance

Denial Risk

Denial Risk — Not Medically Necessary

Computerized dynamic posturography (CDP) testing (CPT 92548, 92549) is considered unproven and not medically necessary for Medicaid and CoverKids in Tennessee. Claims for CDP are subject to denial when submitted for these members.

Affected CPT codes: 92548, 92549
Applicability: Medicaid and CoverKids — Tennessee

Step Therapy

Step Therapy / Guideline Contrast

There is no requirement for step therapy for CDP in this policy. Note that professional society guidance (AAO‑HNS) lists computerized posturography among potential diagnostic tools; however, UnitedHealthcare’s stance for Tennessee Medicaid/CoverKids remains that CDP is unproven and not medically necessary.

Documentation Required

Claims and Documentation Guidance

When billing for balance or vestibular testing, include the appropriate CPT code(s) on the claim and submit supporting documentation per the member’s federal, state, or contractual benefit terms. Inclusion of a code in this policy does not guarantee reimbursement; benefit coverage is governed by the applicable plan and state requirements. Expect claim denials for CDP (CPT 92548, 92549) for Tennessee Medicaid/CoverKids based on this policy.

Bill using CPT 92548 or 92549 as applicable
Ensure documentation supports medical necessity per the member’s contract and state rules
If service is denied, reference state/contractual benefit terms and this policy for appeals

Prior Authorization

Prior Authorization / Denial Consideration

Prior authorization is not described as required in this policy; however, providers should verify prior authorization requirements with the specific Medicaid/ CoverKids contractual terms before performing CDP. Regardless of prior authorization status, CDP services for Tennessee Medicaid/CoverKids are considered not medically necessary and may be denied.

Verify any plan-specific prior authorization requirements before performing testing
For Tennessee Medicaid/CoverKids, expect denials even if prior authorization is obtained

Background

Computerized dynamic posturography (CDP) is a platform-based test (also referred to as moving platform posturography or equilibrium platform testing) that manipulates visual, proprioceptive, and vestibular inputs to assess balance. Although CDP attempts to isolate vestibular deficits by presenting altered sensory conditions, the policy notes limited and weak clinical evidence and concludes that CDP has not demonstrated consistent diagnostic benefit or improvement in patient outcomes compared with standard vestibular assessments.

Definitions

CDP / Posturography — definition

Alternate namesMoving platform posturography; dynamic posturography; equilibrium platform testing; balance board testing.

Key componentsIncludes sensory organization test (SOT) conditions that vary vision and platform motion to assess balance; may include motor control test (MCT) and adaptation test (ADT).

PurposeTo measure balance under varied sensory conditions with the goal of isolating vestibular-related contributors to imbalance.

Relation to other vestibular testsComplementary to standard vestibular diagnostics such as electronystagmography and rotational chair tests that assess eye-movement responses to head position and rotation.