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Q23.2

Billable

Congenital mitral stenosis

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A birth defect where the mitral valve (the valve between the left upper and lower chambers of the heart) is abnormally narrow, restricting blood flow.

Coding Tips

  • •Note any associated cardiac complications or hemodynamic effects documented in the record
  • •Distinguish from acquired mitral stenosis (I34.2) which typically results from rheumatic heart disease

Code Hierarchy

└Q23Congenital malformations of aortic and mitral valves└Q23.2Congenital mitral stenosis
└Q23.2Congenital mitral stenosis

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