Product classification
HS code for Diagnostic kits: 3822.90
Reagents, diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, or put up in the form of kits, other than those of heading 30.06, certified reference materials, n.e.c. in heading 3822.
Classification of diagnostic kits under HS 3822.90
Diagnostic kits are classified under HS code 3822.90, which covers diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, or those put up in the form of kits. This classification is determined by the product's primary function as a prepared reagent designed to facilitate a chemical or biochemical reaction for medical, veterinary, or scientific analysis. Unlike medicaments of heading 30.03 or 30.04, which are used for therapeutic or prophylactic purposes, these kits are used to identify, measure, or detect specific substances or conditions. The heading includes reagents that are prepared in a way that they are ready for use in a laboratory or for a specific diagnostic test, often containing multiple components like buffers, enzymes, and antibodies. The classification remains here regardless of whether the reagent is on a backing of paper, plastics, or other materials, provided it is not a blood-grouping reagent of heading 30.06.
- Covers
- COVID-19 rapid antigen and antibody test kits
- Blood glucose monitoring strips and kits
- Pregnancy detection kits for home or clinical use
- Urinalysis reagent strips for multiple parameters
- Cholesterol and lipid profile testing kits
- PCR (Polymerase Chain Reaction) reagent kits
- ELISA (Enzyme-Linked Immunosorbent Assay) kits
- Also under 3822.90
- Sigma-Aldrich CRM
- Merck Millipore Reference Materials
- Agilent Calibration Standards
- Thermo Fisher Scientific Certified Standards
- NIST Standard Reference Materials
Codes often confused with 3822.90
Common mistake. Diagnostic kits are frequently misclassified under heading 30.02 or 30.06. Heading 30.02 covers human blood, animal blood, and antisera, which may be components of a kit but do not define the kit as a prepared reagent. Heading 30.06 is specifically for pharmaceutical goods like blood-grouping reagents. If a kit is for malaria or specific infectious diseases, it may fall under 3822.11 or 3822.19 rather than 3822.90.
Top exporters and importers of HS 382290 (the code used for diagnostic kits), 2025
In 2025, the largest exporter of HS 382290 (the code used for diagnostic kits) in UN Comtrade data was the United Kingdom, with 13% of world exports; the largest importer in UN Comtrade data was Hong Kong, with 7.8% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 382290, not only diagnostic kits.
Top exporters 2025 · share of world exports
- 1 United Kingdom $596M 13% of world exports
- 2 United States $519M 12% of world exports
- 3 Germany $441M 10.0% of world exports
World total: $4.4B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Hong Kong $426M 7.8% of world imports
- 2 France $346M 6.3% of world imports
- 3 Germany $306M 5.6% of world imports
World total: $5.5B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for diagnostic kits
Brazil classifies diagnostic kits under NCM 3822.90.00: HS 3822.90 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about diagnostic kits
What is the HS code for Diagnostic kits?
The HS code for Diagnostic kits is 382290 (Reagents; diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, or put up in the form of kits, other than those of heading 30.06; certified reference materials, n.e.c. in heading 3822). The primary HS code for most general diagnostic kits is 3822.90, though specific kits for diseases like malaria or Zika have their own subheadings under 3822.11 and 3822.12.
How do I classify Diagnostic kits for customs?
Diagnostic kits is classified under HS code 382290 — Reagents; diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, or put up in the form of kits, other than those of heading 30.06; certified reference materials, n.e.c. in heading 3822. This is a 6-digit subheading level code.
Are laboratory reagents without a backing included here?
Yes, HS code 3822.90 includes prepared reagents whether or not they are on a backing, as long as they are intended for laboratory or diagnostic use.
Which countries are the top exporters of diagnostic kits (HS 382290)?
In 2025, the top exporters of HS 382290 (the code used for diagnostic kits) in UN Comtrade data were the United Kingdom ($596M, 13% of world exports), the United States ($519M) and Germany ($441M). World exports came to about $4.4B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of diagnostic kits (HS 382290)?
In 2025, the top importers of HS 382290 (the code used for diagnostic kits) in UN Comtrade data were Hong Kong ($426M, 7.8% of world imports), France ($346M) and Germany ($306M). World imports came to about $5.5B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Diagnostic kits the same in all countries?
The base HS code 382290 for Diagnostic kits is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for diagnostic kits in Brazil?
In Brazil, diagnostic kits (HS 382290) is classified under NCM 3822.90.00.