Chapter 90 is the chapter in the HS classification system covering optical, photographic, cinematographic, measuring, checking, medical or surgical instruments and apparatus, and precision instruments and apparatus. This chapter covers a very broad range, from eyeglasses and microscopes to medical diagnostic equipment, X-ray equipment, etc. The core characteristic is that these goods are all precision, technical, and for professional use, distinct from the general machinery of Chapter 84 and the electrical equipment of Chapter 85. Goods in this chapter are typically used in professional fields such as measurement, testing, analysis, and medical treatment, and it is an important classification chapter for high-tech products. Heading 9018 covers medical, surgical, dental or veterinary instruments and appliances, including scintigraphic apparatus, other electromedical apparatus and sight-testing instruments. Specifically, it includes: medical, surgical, dental, and veterinary instruments; syringes, needles, catheters, cannulae, etc.; ophthalmic instruments; other electromedical equipment; and massage appliances, artificial respiration apparatus, etc. This heading is the core heading for the classification of medical devices, covering everything from simple surgical instruments to complex electronic diagnostic equipment. Code 901839 is a six-digit subheading. The first 2 digits '90' represent Chapter 90, i.e., the chapter on optical, medical, and other precision instruments. Digits 3-4 '18' represent heading 9018, i.e., medical, surgical, dental or veterinary instruments and appliances. Digits 5-6 '39' represent subheading 901839, which is further subdivided into: 901831 (syringes, with or without needles), 901832 (tubular metal needles), 901839 (other catheters, cannulae and the like). Therefore, 901839 specifically refers to other catheters, cannulae and similar articles not elsewhere specified, usually made of plastic or rubber, used for medical drainage, infusion, intervention, etc. The goods are medical catheters, which are medical appliances and are not specifically named in other subheadings. 901831 is for syringes, and 901832 is for tubular metal needles, neither of which matches the characteristics of catheters. 901839 specifically covers other catheters, cannulae and similar articles, so it is classified under this code. If a catheter has an electronic sensor or becomes part of electrical diagnostic equipment, it may be classified under other subheadings of 9018 or 9019, etc., but ordinary medical catheters should be classified under 901839.

Product name: The Chinese and English names of the declared goods should accurately reflect the product attributes, such as 'Medical catheter'. Material: The main material of the catheter, such as polyvinyl chloride (PVC), silicone, polyurethane, Teflon, etc., which affects classification and regulatory conditions. Use: The specific medical use, such as cardiovascular intervention, urinary catheterization, infusion, drainage, etc., which must be consistent with the medical device registration certificate. Brand: The manufacturer or brand name, such as 'Medtronic', 'Boston Scientific', etc. If there is no brand, fill in 'None'. Model: The model or specification of the product, such as '6F', '5Fr', etc., which should be consistent with the registration certificate. Sterile or not: Whether it has been sterilized, single-use or reusable, which affects regulatory conditions. With accessories or not: Whether it is equipped with accessories such as guidewires, puncture needles, etc. If so, they must be declared separately. Medical device registration certificate number: For imports, the medical device registration certificate number issued by the National Medical Products Administration must be provided, in a format such as 'Guo Xie Zhu Jin XXXX'. Product name: Medical catheter; Material: Polyurethane; Use: Used for delivering contrast agent during cardiovascular interventional surgery; Brand: Medtronic; Model: 6F; Sterile or not: Yes, single-use; With accessories or not: No; Medical device registration certificate number: Guo Xie Zhu Jin 20173770001. Note: The product complies with ISO 10555 standards. Confusing catheters with guidewires; guidewires are usually classified under 901839 but must be declared separately. Ignoring sterilization status; failure to declare 'sterile' may lead to inspection rejection. Incorrectly using non-medical names such as 'plastic tube', leading to classification errors.

The core basis for classification is the 'Import and Export Tariff' and the 'Medical Device Classification Catalog'. 901839 covers other catheters, cannulae and similar articles, but must meet the following: 1) dedicated for medical, surgical, dental or veterinary use; 2) not syringes or metal needles; 3) usually tubular, used for introducing or withdrawing body fluids, delivering drugs, etc. If a catheter has electronic components (such as a pressure sensor), it may be classified under other subheadings of 9018 or 9019. If it is an ordinary plastic tube not marked for medical use, it may be classified under 3917. 901831 Syringes: Syringes are appliances used for injecting or withdrawing liquids, usually with a plunger; while catheters are tubular, used for drainage or delivery, without a plunger. 901832 Tubular metal needles: Tubular metal needles are for puncture, made of metal; catheters are usually made of plastic or rubber, soft and bendable. 901890 Other medical instruments: 901890 is for other medical instruments not elsewhere specified, such as scalpels, forceps, etc.; catheters are already named in 901839, so they should be classified under 901839 first. 391732 Plastic flexible tubes: 391732 is for non-reinforced plastic flexible tubes, not for medical use; if the catheter is dedicated for medical use, it is classified under 901839. 901920 Respiratory apparatus: 901920 includes oxygen masks, respirators, etc.; if a catheter is used for respiratory therapy, it should be judged according to its function and may be classified under 901920. Is it clearly for medical use? Is the material plastic or rubber? Does it have an electronic sensor? Has the medical device registration certificate been obtained? Is it confused with a syringe or needle?

How to distinguish medical catheters from ordinary plastic tubes in HS codes? The core difference lies in use and regulation. Medical catheters are dedicated for medical use, must comply with medical device standards, usually have a medical device registration certificate, and are classified under 901839; ordinary plastic tubes have no medical use and are classified under 3917. If a plastic tube claims to be for medical use but has no registration certificate, customs may question its classification. How to declare a catheter with a guidewire? The catheter and guidewire should be declared separately. The catheter is classified under 901839; if the guidewire is metal and used for medical purposes, it is usually also classified under 901839, but must be listed separately. If the guidewire and catheter are packaged as a set, they may be classified as a set, but this must be noted. What regulatory documents are required for importing medical catheters? Usually, a medical device registration certificate (or filing certificate) and an import medical device customs clearance form are required. Specific regulatory conditions should be checked in the latest 'Import and Export Tariff' and General Administration of Customs announcements. It is recommended to use the customs advance classification service for confirmation. What is the export tax rebate rate for 901839? The export tax rebate rate is adjusted according to national policies and is not fixed. It is recommended to check the latest export tax rebate rate database of the State Taxation Administration or consult the local tax bureau. Currently, the export tax rebate rate for most medical devices is 13%, but actual queries shall prevail. How to check the MFN tariff rate for 901839? You can log on to the website of the General Administration of Customs of China, enter 'Import and Export Tariff' to query, or use the 'Customs Classification Intelligent Navigation' system. Enter 901839 to view the MFN tariff rate, general tariff rate, VAT rate, etc. Note that tariff rates may be adjusted annually. Does an antibacterial coating on a catheter affect classification? Generally, it does not affect classification and it remains under 901839. However, if the coating has a pharmaceutical effect, it may be regarded as a drug-device combination product, and classification should be based on the primary function. If the drug is the main component, it may be classified under 3004; if the device is the main component, it remains under 901839. What code applies to cross-border e-commerce retail imports of medical catheters? Cross-border e-commerce retail imports also use HS code 901839, but must comply with the requirements of the 'Cross-border E-commerce Retail Import Commodity List'. Some medical devices may be prohibited or restricted from import through cross-border e-commerce, and this must be confirmed in advance. How to distinguish 901839 from 901890? 901839 specifically names catheters, cannulae and similar articles; 901890 is for other medical instruments not elsewhere specified. If the product is a catheter, it should be classified under 901839 first. If it is other instruments such as scalpels or forceps, it is classified under 901890.