Other pericardial effusion (noninflammatory)

This code signifies the presence of excess fluid accumulation within the pericardial sac, which is the double-layered sac surrounding the heart, when the effusion is not caused by an inflammatory process. This noninflammatory fluid buildup can impair cardiac function by restricting the heart's ability to fill and pump blood effectively.

Use this code for pericardial effusions documented as transudative, idiopathic, or otherwise not specified as inflammatory in nature. Documentation supporting its use often includes echocardiogram reports detailing the presence and size of the effusion, along with physician notes ruling out infectious, autoimmune, or other inflammatory etiologies.

• Ensure documentation explicitly states the effusion is noninflammatory or provides no evidence of inflammation.
• Distinguish from I30.- codes for acute pericarditis, which inherently involve inflammation.
• Consider sequencing this code after the underlying cause of the effusion, if known (e.g., heart failure, renal failure).