National Coverage Determination Procedure Code: 85610 ...

frequently than weekly requires documentation of medical necessity [e.g. other than Chronic Renal Failure (ICD-9-CM 585) or Renal Failure, Unspecified (ICD-9-CM 586)]. The need to repeat this test is determined by changes in the underlying medical condition and/or the dosing of warfarin. In a patient on stable warfarin therapy, it is ................
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