Summary & Overview
CPT 62201: Endoscopic Ventriculocisternostomy for Hydrocephalus
CPT code 62201 identifies an endoscopic ventriculocisternostomy performed with stereotactic imaging guidance to create an opening between the third ventricle and the cisterna magna, most commonly used to treat noncommunicating hydrocephalus. This procedure matters nationally because it represents a minimally invasive neurosurgical alternative to shunt placement for selected patients with obstructive CSF flow, with implications for outcomes, utilization, and payer coverage policies.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context for when the procedure is used, typical sites of service, and how CPT code 62201 is classified in surgical billing. The publication outlines payer coverage considerations and common modifier use where available, and summarizes the procedural role of ventriculocisternostomy relative to other CSF-diversion strategies.
This overview is intended for clinicians, coding professionals, and policy analysts seeking a concise reference on CPT code 62201, including expected clinical indications, service setting, and the types of coverage discussions that typically accompany advanced neurosurgical endoscopic procedures. Data not available in the input is explicitly omitted.
Billing Code Overview
CPT code 62201 describes an endoscopic ventriculocisternostomy performed with stereotactic imaging guidance. In this procedure the provider uses a small endoscope to access the brain and creates an artificial opening in the floor of the third ventricle to the cisterna magna to restore cerebrospinal fluid (CSF) flow. The procedure is most often performed to treat noncommunicating hydrocephalus and allows CSF to drain internally within the patient.
Service type: Neurosurgical endoscopic CSF diversion procedure (ventriculocisternostomy)
Typical site of service: Hospital operating room or specialized neurosurgical suite (inpatient or outpatient surgical setting depending on clinical indication and patient status)
Clinical & Coding Specifications
Clinical Context
A typical patient is a 6-month-old infant or a 45-year-old adult presenting with signs of increased intracranial pressure such as progressive head enlargement (infants), persistent vomiting, lethargy, papilledema, or gait disturbance. Imaging (CT or MRI) demonstrates obstructive (noncommunicating) hydrocephalus—commonly aqueductal stenosis or a tumor obstructing CSF flow—where endoscopic third ventriculostomy (ETV) is appropriate. The neurosurgical team obtains informed consent, performs preoperative imaging with stereotactic planning, and admits the patient to an operating room or neurointerventional suite. Under general anesthesia, the surgeon makes a small burr hole, inserts a rigid neuroendoscope into the lateral ventricle, advances to the third ventricle, and uses electrocautery or a balloon to create an ostomy in the floor of the third ventricle to allow CSF diversion to the prepontine cistern (cisterna magna). Intraoperative stereotactic imaging guidance and endoscopic visualization confirm patency. The patient is recovered in a post-anesthesia care unit and monitored in a pediatric or neurosurgical ward or intensive care unit depending on condition. Postoperative MRI or CT and serial neurologic exams evaluate success and complications such as hemorrhage or infection.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier / standard code use | Use when no additional modifier applies to the service. |