Did implanted hydrocephalus shunt valves, catheters, reservoirs, supports, and connectors qualify as medicines?

Short answer Yes. California exempted the listed shunt-system components because they were permanently implanted to drain excess fluid and assist brain function.
State
CA
Ruling
Annotation 425.0418
Tax type
Sales and Use Tax
Issued
1984-03-01
Issued by
California State Board of Equalization
Requested by
Board compliance staff asking about products used to treat hydrocephalus

Apply this to your situation

This page answers the general question as of 1984. Ask about yours and see what current California tax law says, with citations.

Currency note: this ruling is from 1984
Subsequent statutory amendments, regulation changes, court decisions, or later rulings may have changed the analysis. Treat this page as historical context, not current tax advice. Verify current law before relying on any specific rule, rate, or position mentioned here.
Disclaimer: This March 1, 1984 internal memorandum classified specifically listed hydrocephalus shunt components based on permanent implantation and their role in assisting brain function. Current product design, implantation facts, function, and law control.
About this page: The plain-English summary, reader guidance, and Q&A below were written by Ezel based on the official state tax ruling. The original ruling (linked on this page as a PDF) is the authoritative source for any reliance.
View original ruling (PDF)

Plain-English summary

California exempted the listed pressure-regulating valve, ventricular catheters and catheter-reservoirs, access devices, reservoir, catheter support, connectors, and atrial or peritoneal catheters. Together, these products formed a surgically implanted shunt that drained excess cerebrospinal fluid from the brain cavity to the peritoneal cavity or jugular vein.

The products qualified because they were permanently implanted to assist the functioning of the brain.

Common questions

What did the shunt system do?

It maintained intracranial pressure by providing a drainage pathway for excess cerebrospinal fluid.

Why were its components exempt?

They were permanently implanted and assisted brain function.

Did the opinion cover temporary external drainage products?

No. It addressed the listed implanted shunt components.

Citations and references

  • California Sales and Use Tax Regulation 1591(b)(2) — permanent-implant provision applied to the hydrocephalus shunt products

Source

Original ruling text

State of California

Board of Equalization

Memorandum

To:

Out-of-State – Compliance (JL)

From:

Charles J. Graziano

Subject:

X-----------------

425.0418

Date:

March 1, 1984

This is in reply to your memo of January 25, 1984 concerning the current application of tax to the sale of certain medical items produced by X-------------------. The products in question are articles or devices used in the medical treatment of persons suffering from hydrocephalus, an abnormal accumulation of fluid in the cranial vault. This treatment consists of surgically implanting a valve regulated shunt system in the patient. Essentially, the shunt consists of a slit-valve, a radiopaque ventricular catheter, connector(s), and either a atrial or peritoneal catheter. The purpose of this shunt system is to properly maintain intracranial pressure by serving as a pathway for the drainage of excess cerebrospinal fluid between the patient’s brain cavity (ventricle) and either the patient’s peritoneal cavity (i.e., ventriculo-peritoneal shunt), or jugular vein (i.e., ventriculo – atrial shunt). We have previously decided that these ventricle shunt products qualify as exempt prescription medicines under Sales and Use Tax Regulation 1591 (b) (2) because they are articles permanently implanted in the human body to assist the functioning of the brain. Therefore, it is our opinion that tax does not apply to the sale or use of the following X------------ products: Pressure-Regulation Components X------------------- Cruciform-Slit Valve

Exempt

Ventricular Access Devices
X------------------- Ventricular Catheters
X------------------- Slotted Ventricular Catheters
X------------------- Catheter-Reservoir

Exempt
Exempt
Exempt

X------------------- Slotted Catheter-Reservoir
X------------------- Frontal Horn Catheter-Reservoir
X------------------- Slotted Frontal Horn Catheter-Reservoir X------------------- McComb Neonatal Catheter-Reservoir

Exempt
Exempt
Exempt
Exempt

Proximal and Distal Components
X------------------- Rickham Type Reservoir
X------------------- Burr Hole Catheter Support
X------------------- Fixation and Joining Connectors

Exempt
Exempt
Exempt

Distal Catheters
X------------------- Atrial Catheters
X------------------- Peritoneal Catheters

CJG:ba

Exempt
Exempt

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