Product classification

HS code for Electrodiagnostic equipment: 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 electrodiagnostic equipment under HS 9018.19

Electrodiagnostic equipment that does not fall into specific subheadings like ECG or Ultrasound is classified under HS code 9018.19. This is a "basket" or residual subheading for electro-diagnostic apparatus, including apparatus for functional exploratory examination or for checking physiological parameters. The classification is determined by the device's use of electrical or electronic technology to diagnose medical conditions or monitor biological functions. Chapter 90 covers medical and surgical instruments, and heading 9018 is the primary location for such tools. Subheading 9018.19 is used for a wide array of sophisticated medical technology that measures electrical signals from the body or uses electrical impulses to test nerve and muscle function. This includes devices that monitor brain activity, muscle response, and respiratory patterns. The classification logic follows GIR 1 and 6, ensuring that if a device is an electro-diagnostic tool but is not an ECG (9018.11), ultrasonic scanner (9018.12), MRI (9018.13), or scintigraphic apparatus (9018.14), it must be placed in the 9018.19 category.

Covers
  • Electroencephalographs (EEG)
  • Electromyographs (EMG)
  • Polygraphs for sleep studies
  • Patient monitoring systems (multi-parameter)
  • Nerve conduction velocity (NCV) testers
  • Audiometers (electro-diagnostic type)
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. A frequent error is classifying specific monitors under 9018.11 (ECG) simply because they include an ECG module. However, if the device is a multi-parameter monitor (measuring heart rate, SpO2, and blood pressure), it is generally classified under 9018.19. Another common mistake is using 9031.80, which covers general measuring and checking instruments. Because these devices are designed for medical diagnostic use, heading 9018 is legally required. Additionally, some diagnostic sensors might be misclassified under 9018.90 (other medical instruments), but if they perform an electro-diagnostic function, 9018.19 is the more specific and correct classification.

9018.11Medical, surgical instruments and appliances; electro-cardiographs9031.80Instruments, appliances and machines; for measuring or checking n.e.c. in chapter 9090.18Instruments and appliances used in medical, surgical, dental or veterinary sciences, including scintigraphic apparatus, other electro-medical apparatus and sight testing instruments9018.90Medical, surgical or dental instruments and appliances; n.e.c. in heading no. 9018

Top exporters and importers of HS 901819 (the code used for electrodiagnostic equipment), 2025

In 2025, the largest exporter of HS 901819 (the code used for electrodiagnostic equipment) 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 electrodiagnostic equipment.

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 electrodiagnostic equipment

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 electrodiagnostic equipment

What is the HS code for Electrodiagnostic equipment?

The HS code for Electrodiagnostic equipment 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 general electrodiagnostic equipment is 9018.19, covering devices like EEGs, EMGs, and multi-parameter patient monitors.

How do I classify Electrodiagnostic equipment for customs?

Electrodiagnostic equipment 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.

Are pulse oximeters classified under 9018.19?

Yes, pulse oximeters are typically classified under HS code 9018.19 as they are electro-diagnostic devices used for checking physiological parameters (oxygen saturation).

Which countries are the top exporters of electrodiagnostic equipment (HS 901819)?

In 2025, the top exporters of HS 901819 (the code used for electrodiagnostic equipment) 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 electrodiagnostic equipment (HS 901819)?

In 2025, the top importers of HS 901819 (the code used for electrodiagnostic equipment) 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 Electrodiagnostic equipment the same in all countries?

The base HS code 901819 for Electrodiagnostic equipment 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 electrodiagnostic equipment in Brazil?

Brazil splits HS 901819 into 4 NCM codes, so the right one for electrodiagnostic equipment 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).