# HS code 3822.90: Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 30.06; certified reference materials

> HS code 3822.90 covers diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 30.06; certified reference materials, other than those classified in 3822.11, 3822.12, 3822.13 and 3822.19. It sits in heading 38.22 (diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 30.06; certified reference materials) in chapter 38 (miscellaneous chemical products). Other goods of heading 38.22 are classified under 3822.11 (diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, for malaria), 3822.12 (diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, for Zika and other diseases transmitted by mosquitoes of the genus Aedes), 3822.13 (diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, for blood-grouping) and 3822.19 (diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other).

Source: https://staging.border.bot/hs-codes/382290
Last updated: 13 October 2026

[HS codes](https://staging.border.bot/hs-codes) / [Chapter 38](https://staging.border.bot/hs-codes/38) / [38.22](https://staging.border.bot/hs-codes/3822) / [3822.90](https://staging.border.bot/hs-codes/382290)

## Key facts

- HS code: 3822.90
- Covers: Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 30.06; certified reference materials
- Heading: [38.22: Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 30.06; certified reference materials](https://staging.border.bot/hs-codes/3822)
- Chapter: [38: Miscellaneous chemical products](https://staging.border.bot/hs-codes/38)
- Edition: HS2022
- Duty rates: [Set by each country’s tariff](https://staging.border.bot/countries)

## What this code covers

HS code 3822.90 covers diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 30.06; certified reference materials, other than those classified in 3822.11, 3822.12, 3822.13 and 3822.19.

The legal text of the subheading is “Other”, in HS2022.

## What it doesn’t cover

Other goods of heading 38.22 are classified under 3822.11 (diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, for malaria), 3822.12 (diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, for Zika and other diseases transmitted by mosquitoes of the genus Aedes), 3822.13 (diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, for blood-grouping) and 3822.19 (diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other).

- [3822.11](https://staging.border.bot/hs-codes/382211) Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits: For malaria
- [3822.12](https://staging.border.bot/hs-codes/382212) Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits: For Zika and other diseases transmitted by mosquitoes of the genus Aedes
- [3822.13](https://staging.border.bot/hs-codes/382213) Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits: For blood-grouping
- [3822.19](https://staging.border.bot/hs-codes/382219) Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits: Other

## How it is structured

3822.90 is a six-digit subheading. Its first two digits, 38, are the chapter; the first four, 3822, are heading 38.22; the last two, 90, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

- Chapter 38: Miscellaneous chemical products
- Heading 38.22: Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 30.06; certified reference materials
- Subheading 3822.90: Other

## In other countries

No national tariff lines under 3822.90 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 3822.90 at six digits and add their own digits after it.

- Previous subheading: [3822.19](https://staging.border.bot/hs-codes/382219) Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits: Other
- Next subheading: [3823.11](https://staging.border.bot/hs-codes/382311) Industrial monocarboxylic fatty acids; acid oils from refining: Stearic acid

## Frequently asked questions

### What does HS code 3822.90 cover?

HS code 3822.90 covers diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 30.06; certified reference materials, other than those classified in 3822.11, 3822.12, 3822.13 and 3822.19.

### Which heading and chapter is HS code 3822.90 in?

HS code 3822.90 is in heading 38.22 (diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 30.06; certified reference materials) in chapter 38 (miscellaneous chemical products).

### Where are goods of heading 38.22 classified when 3822.90 doesn’t fit?

Other goods of heading 38.22 are classified under 3822.11 (diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, for malaria), 3822.12 (diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, for Zika and other diseases transmitted by mosquitoes of the genus Aedes), 3822.13 (diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, for blood-grouping) and 3822.19 (diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other).

## Sources and updates

The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026.

This page was last updated on 13 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Machine-readable: https://staging.border.bot/hs-codes/382290.json