Cerebral infrc due to thombos unsp posterior cerebral artery

This code signifies a cerebral infarction (ischemic stroke) resulting from a blood clot (thrombosis) obstructing an unspecified posterior cerebral artery. This type of stroke affects the brain regions supplied by the posterior cerebral artery, often leading to visual field defects, memory impairment, or sensory deficits.

Apply this code when documentation clearly indicates an ischemic stroke caused by thrombosis within a posterior cerebral artery, but the specific laterality (left or right) is not specified. This diagnosis is typically supported by imaging studies (e.g., MRI, CT scan) confirming infarction and clinical findings consistent with posterior cerebral artery occlusion.

• Ensure documentation specifies "thrombosis" as the cause, not embolism or unspecified occlusion.
• If laterality (left or right posterior cerebral artery) is documented, use the more specific code.
• Sequence this code as the primary diagnosis when it is the reason for the encounter, followed by any associated neurological deficits.