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National Coverage Determination
Microvolt T-Wave Alternans Testing
Using the Analytic Spectral Method

On March 21, 2006, the Centers for Medicare and Medicaid Services (CMS) issued a decision memo stating...

“Microvolt T-Wave Alternans diagnostic testing is covered for the evaluation of patients at risk for sudden cardiac death, only when the analytic spectral method is used.”

Who is at risk for Sudden Cardiac Death?

What are the factors that contribute to cardiac arrest?

What are the syptoms and signs that a person may be at risk?

CPT Code
93025  Microvolt T-wave alternans for assessment of ventricular arrhythmias.

ICD-9-CM Diagnosis codes
For a listing of recommended ICD-9-CM Diagnosis codes typically associated with risk of sudden cardiac death click here.

Medicare Allowable Reimbursement for MTWA Testing
Nationally the average allowable for MTWA testing (CPT Code 93025) is $322.13¹ (reimbursement amount varies by geographical region) To go to the complete geographic listing and to see the Medicare allowable amount for MTWA for your locality click here.

1 CMS physician fee schedule February 13, 2006