Aphasia following nontraumatic subarachnoid hemorrhage

This code signifies a language disorder characterized by impaired comprehension or expression, occurring as a sequela of a subarachnoid hemorrhage that was not caused by trauma. It indicates a persistent neurological deficit affecting communication abilities, directly attributable to the previous cerebrovascular event.

Apply this code when documentation clearly states a patient has aphasia as a residual effect of a prior nontraumatic subarachnoid hemorrhage. This is typically used in rehabilitation settings, follow-up appointments, or when managing chronic neurological deficits. Supporting documentation includes neurologist notes, speech-language pathology evaluations, and imaging reports confirming the subarachnoid hemorrhage.

• Always ensure the documentation specifies "nontraumatic" to differentiate from traumatic subarachnoid hemorrhage sequelae.
• Sequence this code after the acute subarachnoid hemorrhage code (if still active) or as a primary diagnosis when managing the chronic sequela.
• Do not use this code for transient aphasia during the acute phase of the hemorrhage; it is for persistent, residual deficits.