Codes that cannot be used together!!!


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Does anyone know of a product that would determine whether codes can be used together or not?

As an example ..

Patient has CAD and Unstable Angina

one could make a mistake and code them separately rather than use the I25.110 combo code ....

The example is a relatively easy one and not really missed but you get what I mean ... My last employer had something that would catch this type of mistake before a claim was sent out the door but I can't seem to determine what type of product it was or if it was a download from Medicare etc ...

Anyone with any type of knowledge please let me know ... thank you!!!