What Does CPT Code 00220 Mean?

CPT code 00220 describes anesthesia services provided for cerebrospinal fluid (CSF) shunting procedures. This code covers the placement, revision, or removal of ventricular shunts used to treat hydrocephalus.

CSF shunting is one of the most common neurosurgical procedures performed across all age groups. The most frequent configuration is the ventriculoperitoneal (VP) shunt, which diverts excess CSF from the lateral ventricle of the brain to the peritoneal cavity where it is absorbed. Other configurations include ventriculoatrial (VA) shunts and lumboperitoneal (LP) shunts. Anesthesia for these procedures requires consideration of the patient’s baseline neurologic status, increased intracranial pressure, and the need to avoid complications such as overshunting or infection.

Key Code Attributes:

• Billable Status: Fully billable as a standalone anesthesia service
• Base Units (CMS 2026): 10
• Primary Setting: Hospital operating room
• Provider Type: Anesthesiologist (MD/DO) or CRNA with physician supervision
• Service Category: General anesthesia (most common)
• Effective Status: Active CPT code with no planned retirement (verified through 2026)
• Typical Patient Population: Patients with hydrocephalus (congenital, post-infectious, post-hemorrhagic, or normal pressure hydrocephalus)

What Services and Procedures Does CPT Code 00220 Cover?

CPT 00220 covers anesthesia for CSF shunting procedures, including initial placement and subsequent revisions.

Covered Procedures and Surgical Indications:

• Ventriculoperitoneal (VP) shunt placement for hydrocephalus
• Ventriculoatrial (VA) shunt placement
• Lumboperitoneal (LP) shunt placement
• VP shunt revision for obstruction or infection
• VP shunt externalization or removal
• Endoscopic third ventriculostomy (ETV) with or without choroid plexus coagulation
• Shunt tap or reservoir aspiration for diagnostic sampling
• Ventricular access device (Ommaya reservoir) placement

What Does CPT Code 00220 Specifically Exclude?

CPT 00220 does not cover anesthesia for:

• Burr hole procedures without shunt placement (use 00210-00214)
• Craniotomy for tumor or vascular lesion (use 00210-00218)
• Subdural tap (use 00212)
• Procedures on the spine without shunt involvement (use 00600-00670)

When Is CPT Code 00220 the Right Code to Use?

Use CPT 00220 when the surgical procedure involves placement, revision, or removal of a CSF shunt or ventricular access device.

Step-by-Step Code Selection:

1. Confirm the procedure involves CSF shunt placement, revision, or removal
2. Verify the shunt is intracranial (ventricular) or lumbar (lumboperitoneal)
3. If the procedure is a burr hole without shunt placement, use 00210-00214
4. If the procedure is a craniotomy for tumor or aneurysm, use 00210-00218

How Does CPT Code 00220 Differ From Other Cranial Anesthesia Codes?

| Code | Procedure | Base Units | |---

---|-----------|------------| | 00210 | Craniotomy or craniectomy (simple) | 11 | | 00214 | Burr holes with ventriculography | 9 | | 00215 | Cranioplasty or elevation of depressed fracture | 9 | | 00220 | CSF shunting procedures | 10 |

What Documentation Is Required to Support CPT 00220?

Required Documentation Elements:

• ASA Physical Status Classification
• Preoperative neurologic assessment
• Start and stop times
• Type and dosage of anesthetic agents
• Airway management technique
• Estimated blood loss
• Fluid management
• Antibiotic timing and redosing
• Postoperative neurologic assessment

Key Takeaways for Billing and Coding CPT 00220

• CPT 00220 covers anesthesia for CSF shunting procedures
• Base units are 10 under the 2026 CMS Physician Fee Schedule
• VP shunt placement is the most common procedure billed under this code
• The anesthesia provider must be vigilant about increased ICP and positioning

Additional Resources and References

• CMS Physician Fee Schedule: Official source for base units and conversion factors
• ASA Relative Value Guide: The American Society of Anesthesiologists annual RVG
• AMA CPT Professional Edition: The official CPT code set