Nontraumatic intcrbl hemorrhage in hemisphere, subcortical

This code signifies a spontaneous (non-traumatic) bleed originating within the brain tissue of a cerebral hemisphere, specifically affecting subcortical structures such as the basal ganglia, thalamus, or brainstem. It represents an acute cerebrovascular event where blood extravasates directly into the brain parenchyma, distinct from hemorrhages occurring in the subarachnoid or subdural spaces.

Apply this code when documentation clearly indicates an intracerebral hemorrhage that is not due to external trauma and is localized to the subcortical regions of a cerebral hemisphere. Supporting documentation includes neuroimaging reports (CT or MRI) confirming the location and non-traumatic etiology, and physician notes detailing the acute onset of neurological deficits consistent with a hemorrhagic stroke.

• Differentiate carefully between traumatic and non-traumatic hemorrhages; this code is strictly for spontaneous bleeds.
• Ensure the hemorrhage is explicitly described as subcortical within a cerebral hemisphere, as other locations (e.g., cerebellar, intraventricular) have different codes.
• Do not use this code if the hemorrhage is secondary to a ruptured aneurysm or arteriovenous malformation (AVM); specific codes for those etiologies should be used.