Jeremy is a 44-year-old patient who has been diagnosed with mitral regurgitation. He has been having some shortness of breath lately, so today he is having an echocardiogram to evaluate whether the condition has worsened. The ICD-9 code for Jeremy's procedure today is found in which of the following series of codes?
A. 390-459
B. 460-519
C. 760-779
D. 800-999
E. E800-E999
A. 390-459
Because Jeremy has already been diagnosed with mitral regurgitation, which is a condition of the circulatory system, you would code the diagnosis. The ICD-9 code will be found in Chapter 7, "Diseases of the circulatory system," which contains the code range 390-459.
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