9018.39.00.20 - Rubber catheters

This HTS category, 9018.39.00.20, specifically classifies rubber catheters. These are flexible tubes made of rubber, designed for insertion into a body cavity, duct, or vessel for medical purposes, such as drainage, administration of fluids, or surgical access. The key distinguishing feature for this classification is the material composition, explicitly identifying the use of rubber as the primary material for the catheter.

This category is a sub-classification under "Other" bougies, catheters, drains, and sondes. It is important to note that while other items may fall under the broader "Other" category (e.g., 9018.39.00.40), this specific code is reserved for those catheters where rubber is the defining material. Other materials, such as silicone or plastic, would be classified elsewhere depending on their specific characteristics and sub-classification.

As this is a leaf node within the HTS structure, there are no further subcategories. Therefore, classification within 9018.39.00.20 hinges directly on the confirmation that the article in question is a catheter and that its primary construction material is rubber. This ensures precise identification for customs and trade purposes, distinguishing it from other types of medical tubing or instruments within Chapter 90.