Contaminated med/biolog sub, transfused or infused

This code signifies an adverse event where a patient receives a medical or biological substance (e.g., blood products, IV fluids, medications) that is found to be contaminated. The contamination can involve bacteria, viruses, fungi, or other foreign matter, leading to potential patient harm or infection.

Apply this code when documentation clearly indicates a patient suffered an adverse reaction or complication due to the transfusion or infusion of a substance later identified as contaminated. This includes cases of transfusion-related sepsis, post-infusion infections, or other systemic reactions directly linked to the impurity of the administered product.

• Always sequence this code as a secondary diagnosis, following the code for the specific adverse effect or condition caused by the contamination.
• Ensure documentation specifies the substance was "contaminated" and not merely an "adverse reaction to a properly administered substance."
• Do not use for errors in administration technique or incorrect substance given; those have different external cause codes.