401.9 … still a valid code?

I recently received this queston, and the answer is: Of course it is!

401.9, essential hypertension, is on the 2011 code list, and it is valid.

I’m sure the real question surrounds its case mix status.

As this blog noted a few months ago, 401.9 was under review to be taken off the case mix list. The code still is case mix, but that doesn’t mean it will stay as such permanently.

It comes down to this: the code is valid, and we code based on patient care, not on case mix.

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