Cerebral infrc due to cerebral venous thombos, nonpyogenic

This code signifies a stroke resulting from a blockage in a cerebral vein or dural sinus, specifically when the cause is not an infection. It indicates brain tissue death due to impaired venous drainage rather than arterial occlusion.

Apply this code when documentation explicitly states a cerebral infarction caused by cerebral venous thrombosis (CVT) and specifies that the thrombosis is nonpyogenic. This diagnosis is typically supported by imaging studies (e.g., CT venography, MR venography) confirming the venous thrombosis and evidence of infarction.

• Differentiate from arterial infarctions (I63.x codes) and pyogenic CVT (G08).
• Ensure documentation clearly states "nonpyogenic" to avoid miscoding.
• Sequence this code as the principal diagnosis when it is the primary reason for the encounter.