Modifiedpriority healthPolicy NO. 91637

COMPUTERIZED DYNAMIC POSTUROGRAPHY

This policy governs coverage of computerized dynamic posturography (CDP) for diagnosis and evaluation of vestibular disorders, including vestibular rehabilitation applications, for Priority Health members. It outlines medical necessity determinations, coding, and applicability across product types.

Policy Summary

Payerpriority health

PolicyCOMPUTERIZED DYNAMIC POSTUROGRAPHY

Policy CodePolicy NO. 91637

Change TypeCoverage stance added (experimental/investigational)

Effective DateJun 1, 2026

Next Review Date

Key ActionSubmit individual case review with prior plan approval and supporting documentation when requesting coverage for investigational CDP services.

SourceLink

POLICY UPDATE CHANGES

Added computerized dynamic posturography for vestibular rehabilitation applications is considered experimental/investigational.

Updates to background and references were made to align with current evidence and guidelines.

Removed outdated references

92548/92549CPT codes listed as Not Medically Necessary

2024-2025Recent evidence cited

NO. 91637Policy identifier

05/13/2026Last updated

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Coverage Criteria for Computerized Dynamic Posturography

Experimental / Investigational (Not Covered)

Policy determination

Primary Coverage Determination: Computerized dynamic posturography for the diagnosis of vestibular disorders, including vestibular rehabilitation applications is experimental and investigational due to insufficient evidence of efficacy and clinical benefit.

CDP is considered investigational for both diagnostic and rehabilitation applications based on insufficient evidence.

Experimental/Investigational (coverage stance update re: vestibular rehabilitation applications)

Covered stance update

Computerized dynamic posturography for vestibular rehabilitation: Computerized dynamic posturography when used for vestibular rehabilitation applications is considered experimental/investigational.

Added in policy update

The following procedure codes are listed as Not Medically Necessary because computerized dynamic posturography (CDP) is considered experimental/investigational for diagnosis and vestibular rehabilitation applications: 92548 and 92549. Code 92548 describes the Computerized dynamic posturography sensory organization test (CDPSOT), 6 conditions, including interpretation and report. Code 92549 describes the CDPSOT, 6 conditions, including interpretation and report; with motor control test (MCT) and adaptation test (ADT).

Computerized dynamic posturography when applied for vestibular rehabilitation purposes is specifically excluded from coverage and considered experimental/investigational due to insufficient evidence of efficacy and clinical benefit. This application was added to the policy updates effective in the recent revision.

Summary: Computerized dynamic posturography (CDP), including procedures reported with CPT codes 92548 and 92549, is considered Not Medically Necessary and classified as experimental/investigational for both diagnosis of vestibular disorders and for vestibular rehabilitation applications because available evidence does not demonstrate adequate clinical benefit.

Coding and Billing

Not Medically Necessary as Considered Experimental / InvestigationalCPTNot Covered

92548	Computerized dynamic posturography sensory organization test (CDPSOT), 6 conditions (i.e., eyes open, eyes closed, visual sway, platform sway, eyes closed platform sway, platform and visual sway), including interpretation and report
92549	Computerized dynamic posturography sensory organization test (CDPSOT), 6 conditions (i.e., eyes open, eyes closed, visual sway, platform sway, eyes closed platform sway, platform and visual sway), including interpretation and report; with motor control test (MCT) and adaptation test (ADT)

Provider Actions, Prior Authorization, and Denial Risk

Prior Authorization

Prior Authorization for Investigational Services

Prior authorization requirement for investigational CDP — individual case review and prior plan approval required for consideration of coverage. Providers should consult the Priority Health Provider Manual for prior authorization processes and submit documentation demonstrating medical necessity when prior authorization is required.

Individual case review may allow coverage for investigational treatments; requests require prior plan approval
All determinations for experimental/investigational/unproven treatments are made by a Priority Health medical director or clinical pharmacist
Refer to the Priority Health Provider Manual for submission procedures

Denial Risk

Denial Risk for CDP Services

Claims for computerized dynamic posturography (CDP) services (CPT 92548, 92549) are at risk of denial because CDP for vestibular rehabilitation applications is considered experimental and investigational due to insufficient evidence of efficacy and clinical benefit.

Background and Evidence

Vestibular disorders cause vertigo, dizziness, and imbalance and require a careful clinical evaluation to distinguish vestibular from non‑vestibular causes. Standard diagnostic testing typically assesses vestibular end‑organ and oculomotor responses (for example, electronystagmography, caloric testing, or rotational chair testing). Computerized dynamic posturography (CDP) is a moving‑platform assessment that evaluates global balance performance and postural control through protocols such as the Sensory Organization Test (SOT), Motor Control Test (MCT), and Adaptation Test (ADT); however, CDP does not directly measure vestibular end‑organ function and has limited diagnostic specificity and correlation with objective vestibular tests. Careful selection of diagnostic tests and corroborating clinical findings is therefore required when evaluating patients with dizziness or imbalance.

Definitions

Computerized dynamic posturography (CDP) — definition and purpose

TermComputerized dynamic posturography (CDP)

DefinitionA moving-platform (force platform) assessment that evaluates global balance performance and postural control by systematically manipulating visual and somatosensory inputs; includes protocols such as the Sensory Organization Test (SOT), Motor Control Test (MCT), and Adaptation Test (ADT).

PurposeTo quantify postural responses and functional balance strategies under controlled sensory perturbations rather than to directly measure vestibular end-organ function.

Key featuresUses sway-referenced support surfaces and/or visual surrounds to alter sensory conditions and measure sway and balance metrics.

LimitationsDoes not reliably distinguish peripheral versus central vestibular disorders or non-vestibular causes; demonstrates limited diagnostic specificity and poor correlation with objective vestibular end-organ tests.