I have a record with Dxs: NIDDM/CRF (Chronic renal failure) and the second Dx is HTN/CRF. I coded 250.40, 585.9, and 403.90. My question is that since two DXs require that you use a code for the CRF (585.9) but you can only report it once per DOS, how do you sequence this. My training department at Outcomes can never seem to answer the question asked.