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For patients suffering from chronic dizziness, vertigo, or imbalance, objective testing is critical. One of the most advanced tools available is Computerized Moving Platform Posturography. This technology uses force plates and moving platforms to quantify a patient’s postural sway, distinguish between sensory organization deficits, and guide rehabilitation. However, a disturbing trend has emerged: faux or fake Computerized Moving Platform Posturography testing, where clinics bill for complex evaluations but use simplified, non-standardized methods that provide no real diagnostic value. This article explores the implications of such fraudulent practices, with a focus on the Foam and Dome alternative, the CTSIB (Clinical Test of Sensory Integration and Balance), insurance fraud, CDP (Computerized Dynamic Posturography), legal consequences, and Medicare compliance.
True Computerized Moving Platform Posturography (often referred to as CDP or Computerized Dynamic Posturography) uses a calibrated, motorized platform that moves in response to the patient’s sway, along with a visual surround that can be sway-referenced. The system measures center-of-pressure movement, generates precise sensory organization test (SOT) scores, and provides data on vestibular, visual, and somatosensory contributions to balance. This requires FDA-cleared equipment, trained personnel, and standardized protocols.
In contrast, a faux test might involve nothing more than a Foam and Dome setup — a piece of high-density foam placed on the floor and a Japanese lantern or plastic dome placed over the patient’s head. The clinician watches the patient try to stand still. This is essentially the CTSIB (Clinical Test of Sensory Integration and Balance), which is a clinical screening tool, not a computerized assessment. Yet some providers code these as if they were full CDP evaluations, upcoding and billing insurance or Medicare at much higher rates. The result: fraudulent claims, no objective data, and misdiagnosis of a potentially serious condition.
The CTSIB using Foam and Dome has its place — it is a quick, inexpensive screening test that can be performed in any clinic. But it does not generate computerized waveforms, does not isolate sensory contributions with moving platform perturbations, and cannot produce the quantified sway path or equilibrium scores that define true Computerized Moving Platform Posturography. Billing it as such is analogous to palpating a pulse and calling it an echocardiogram. Insurance companies and Medicare specifically require the use of a moving platform and computerized analysis for reimbursement under the CDP CPT codes (e.g., 92548). Using a static foam pad is not compliant.
Medicare and private insurers have clear policies regarding Computerized Dynamic Posturography. The test must be performed using a device that is capable of moving the support surface and/or visual surround during testing. The Foam and Dome variation does not meet this criterion. When clinics submit claims using CDP codes but actually performed only a CTSIB, they commit fraud. Medicare audits have specifically targeted this practice.
Patients and referring physicians should be aware: if you are told you are receiving a "computerized balance test" but the only equipment is a foam pad and a shower cap with a pattern, you are not receiving Computerized Moving Platform Posturography. The test results will have no normative computer analysis, no sway area calculations, and no objective reporting. Legitimate CDP generates pages of data; a foam and dome test produces only a stopwatch time.
The legal stakes are high. Filing false claims to Medicare violates the False Claims Act and can lead to treble damages, civil penalties, and exclusion from federal healthcare programs. Several physical therapy and otology practices have been investigated and fined for upcoding Foam and Dome tests as CDP. Additionally, there is a patient safety dimension. A patient diagnosed with "normal balance" based on a simple foam test might actually have a significant vestibular disorder that only a moving platform perturbation could unmask. Delayed diagnosis can lead to falls, injury, and worsened outcomes.
Patients who suspect they received a fake test should contact an attorney. The statute of limitations for healthcare fraud varies by jurisdiction, but the legal consequences for providers can be severe, including criminal charges. Whistleblower lawsuits (qui tam) under the False Claims Act can also result in substantial recoveries for the government and the whistleblower.
Computerized Moving Platform Posturography remains the gold standard for objective balance assessment when dizziness is present. The Foam and Dome adaptation of the CTSIB is a simple clinical screen — useful but not equivalent. The proliferation of faux testing harms patients, defrauds insurance and Medicare, and exposes clinicians to serious legal risk. As awareness grows, auditors and regulators are cracking down. For the safety of patients and the integrity of the profession, we must distinguish clearly between a dome and a diagnosis. When it comes to balance, there is no substitute for the real thing.
This page was generated by AI.
It is not a source of trustworthy medical information.
The curated page
see also: MCT | MCT2 | adaptation | composite_score | data_analysis | faux_CDP | insurance | malingering | norms | pref_score | references | sensory_analysis | sensory_scores | som_score | vest_score | vis_score | wrong_sensory