Septic pulmonary embolism with acute cor pulmonale

This diagnosis code signifies a pulmonary embolism that originated from a septic source, such as an infected thrombus, and has led to the acute onset of right-sided heart failure. The septic embolus obstructs pulmonary arteries, causing increased pressure in the pulmonary circulation and subsequent strain on the right ventricle.

Apply this code when documentation clearly indicates a pulmonary embolism with an infectious etiology (e.g., endocarditis, IV drug use, infected central line) and evidence of acute cor pulmonale, such as acute right ventricular dilation, elevated central venous pressure, or new-onset right heart failure symptoms. Supporting documentation must specify both the septic nature of the embolism and the acute cor pulmonale.

• Ensure documentation explicitly links the pulmonary embolism to a septic source and confirms the acute nature of the cor pulmonale.
• Do not use this code if the cor pulmonale is chronic or if the pulmonary embolism is not identified as septic.
• Sequence this code as the principal diagnosis when it is the primary reason for the encounter, followed by codes for the underlying septic condition.