Product classification

HS code for EEG machine: 9018.19

Medical, surgical instruments and appliances, electro-diagnostic apparatus (including apparatus for functional exploratory examination or for checking physiological parameters), n.e.c. in item no. 9018.1.

Classification of EEG machine under HS 9018.19

EEG machines are classified under HS code 9018.19, which serves as the category for electro-diagnostic apparatus not elsewhere specified (n.e.c.). While Heading 9018 covers the broad spectrum of medical instruments, the subheadings 9018.11 through 9018.14 identify specific technologies like ECGs and MRIs. Electro-encephalographs (EEG), which record electrical activity of the brain, do not have a dedicated 6-digit code of their own and thus fall into the 9018.19 "other" category. This classification includes the main unit and the specialized amplifiers and data processing components that constitute the diagnostic system. It is essential to distinguish these from therapeutic devices, as 9018 is strictly for diagnostic or surgical application. The classification is driven by the device's function of checking physiological parameters through electrical measurement.

Covers
  • Clinical electro-encephalographs (EEG)
  • Electromyographs (EMG)
  • Evoked potential diagnostic systems
  • Polysomnography (sleep study) equipment
  • Nerve conduction velocity (NCV) test units
Also under 9018.19
  • Philips IntelliVue Patient Monitor
  • GE Healthcare MAC 2000 ECG
  • Nihon Kohden EEG-1200
  • Medtronic NIM-ECLIPSE
  • Schiller Cardiovit AT-1 G2

Codes often confused with 9018.19

Common mistake. The most common misclassification for EEG machines is 9018.11, which is exclusively for ECG (heart) monitors. Because both involve electrodes and electrical signals, they are often grouped together in error. Another common mistake is 9019.10, which covers mechano-therapy or psychological aptitude-testing apparatus; however, EEG machines are diagnostic medical tools, not aptitude testers. Finally, they should not be confused with 9018.13, which is reserved for Magnetic Resonance Imaging (MRI) apparatus.

9018.11Medical, surgical instruments and appliances; electro-cardiographs9019.10Mechano-therapy appliances; massage apparatus and psychological aptitude-testing apparatus9018.13Medical, surgical instruments and appliances; magnetic resonance imaging apparatus

Top exporters and importers of HS 901819 (the code used for EEG machine), 2025

In 2025, the largest exporter of HS 901819 (the code used for EEG machine) in UN Comtrade data was the United States, with 25% of world exports; the largest importer in UN Comtrade data was the United States, with 28% 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 901819, not only EEG machine.

Top exporters 2025 · share of world exports

  1. 1 United States $5.3B
  2. 2 Germany $2.8B
  3. 3 Netherlands $2.1B

World total: $21.2B Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 United States $6.3B
  2. 2 Germany $3.6B
  3. 3 Netherlands $1.5B

World total: $22.9B 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 codes for EEG machine

Brazil splits HS 9018.19 into 4 NCM codes. Pick the one that matches your product:

Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.

Questions about EEG machine

What is the HS code for EEG machine?

The HS code for EEG machine is 901819 (Medical, surgical instruments and appliances; electro-diagnostic apparatus (including apparatus for functional exploratory examination or for checking physiological parameters), n.e.c. in item no. 9018.1). The HS code for an electro-encephalograph (EEG machine) is 9018.19.

How do I classify EEG machine for customs?

EEG machine is classified under HS code 901819 — Medical, surgical instruments and appliances; electro-diagnostic apparatus (including apparatus for functional exploratory examination or for checking physiological parameters), n.e.c. in item no. 9018.1. This is a 6-digit subheading level code.

Does this code include the EEG caps?

Yes, if the caps and electrodes are presented with the EEG machine as a complete functional unit, they are classified together under 9018.19.

Which countries are the top exporters of EEG machine (HS 901819)?

In 2025, the top exporters of HS 901819 (the code used for EEG machine) in UN Comtrade data were the United States ($5.3B, 25% of world exports), Germany ($2.8B) and the Netherlands ($2.1B). World exports came to about $21.2B, 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 EEG machine (HS 901819)?

In 2025, the top importers of HS 901819 (the code used for EEG machine) in UN Comtrade data were the United States ($6.3B, 28% of world imports), Germany ($3.6B) and the Netherlands ($1.5B). World imports came to about $22.9B, 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 EEG machine the same in all countries?

The base HS code 901819 for EEG machine 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 EEG machine in Brazil?

Brazil splits HS 901819 into 4 NCM codes, so the right one for EEG machine depends on the product's details: 9018.19.10 (Electro-diagnostic endoscopes), 9018.19.20 (Audiometers), 9018.19.80 (Other electro-diagnostic apparatus), 9018.19.90 (Parts of electro-diagnostic apparatus).