What code is used for balloon dilatation of an intracranial vasospasm, percutaneous, initial vessel?

The correct code for balloon dilatation of an intracranial vasospasm, percutaneous, initial vessel is 61640. This code specifically describes the procedure of treating intracranial vasospasm through the use of balloon dilatation and is detailed in the CPT coding manual for interventional radiology and neurology procedures.

This procedure is typically performed to relieve a blockage in the blood vessels of the brain caused by vasospasm, which may occur after a subarachnoid hemorrhage. The coding reflects the complexity and specificity of the intervention, ensuring that the health care provider is appropriately reimbursed for the service rendered.

The other options do not relate specifically to intracranial vasospasm or the procedure performed. The codes listed might pertain to other vascular treatments or entirely different medical services, thereby making them unsuitable for this particular procedure.