Question: Which diagnosis code is appropriate for a bloodstream infection due to a Port-a-Cath malfunction? Nebraska Subscriber Answer: Your ICD-10-CM code choice in this case is T80.211 (Bloodstream infection due to central venous catheter). In addition to a bloodstream infection due to portacath (port-a-cath), the ICD-10 index also includes the following diagnoses under T80.211-: Important: T80.211- requires a seventh character based upon the encounter. Your choices are as follows: Don't forget: A note says to use an additional code to identify the specific infection, such as sepsis (A41.9) and to use the additional code (R65.2-) to identify severe sepsis, if applicable. See (T81.4-) for post procedural infections and (T82.6-T82.7, T83.5-T83.6, T84.5-T84.7 and T85.7) for infections specified as due to prosthetic devices, implants, and grafts. Includes note: This code includes complications following perfusion.