cardiac cath

pt admitted for NSTEMI and CAD....  went to cath lab had 2 drug eluting stents placed.  Can you sequence the CAD as principle?


  • No..acute reason for admit is the NSTEM.
  • I agree - NSTEMI would be the PDX.  The patient went to the cath lab because of the NSTEMI which is also why the stents were placed.  Most likely, the pt already had CAD so this wasn't an acute issue.
  • what about unstable Angina as principle?
  • If NSTEMI present, angina is not coded.
  • edited November 2019

    If the patient had a previous cath with stents placed and they find in-stent restenosis related to thrombus, in that instance you would sequence the NSTEMI as a secondary based on coding clinic guidance but you would not use the CAD or USA as Pdx.   

    Non-ST elevation myocardial infarction secondary to stent thrombus

          ICD-10-CM/PCS Coding Clinic, Second Quarter ICD-10 2019 Pages: 32-33 Effective with discharges: June 21, 2019

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