HSChapter 90
U.S. imports of electro-diagnostic apparatus (nesoi), parts & accessories (HS 901819) totaled $445.2M in May 2026, traded with 64 countries.
Importers of Electro-Diagnostic Apparatus (NESOI), Parts & Accessories paid $39.7M in duties in May 2026 — an effective duty rate of 12% on $336.5M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: May 2026 dataElectroencephalographs (EEG), electromyographs (EMG), patient monitoring systems, basal metabolism apparatus, and blood pressure devices — along with their printed circuit assemblies and parts — are distributed across seven distinct 10-digit tariff lines under this heading, from 9018194000 through 9018199560. Germany leads US imports for this heading, with Mexico and Costa Rica also significant sources, reflecting nearshore manufacturing by multinational medical device companies. Each device type carries its own FDA CDRH classification and 510(k) or De Novo pathway requirements, and importers must ensure the correct predicate device or clearance is in place before entry. The breadth of this residual heading means classification disputes are common — particularly for combination devices that monitor multiple physiological parameters simultaneously.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
9018195500 is specifically designated for patient monitoring systems, which are devices that continuously track multiple physiological parameters (e.g., ECG, SpO2, blood pressure) in a clinical setting. Single-parameter or portable consumer-grade devices may fall under other lines such as 9018199530 (blood pressure apparatus) or 9018199550 (electro-diagnostic apparatus NESOI). The intended clinical use, number of parameters monitored, and device design are the key factors; a binding ruling from CBP can provide certainty for recurring shipments.
Not necessarily. Printed circuit assemblies specifically for parameter acquisition modules have their own dedicated tariff line (9018197500) and may carry a different duty rate than the finished patient monitoring system (9018195500). Importers should classify PCAs separately from complete devices and verify whether any Section 301 exposure applies to the specific line, particularly for assemblies sourced from China.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $70.5M | $29.3M | -$41.2M |
| GERMANY | $69.1M | $22.2M | -$46.8M |
| JAPAN | $49.1M | $20.7M | -$28.4M |
| NETHERLANDS | $2.8M | $64.9M | +$62.2M |
| CHINA | $29.1M | $35.0M | +$5.9M |
Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 9018199560 | PARTS&ACCESSORIES FOR ELECTRO-DIAGNOSTIC APPARATUS | $220.2M | 9.28% | 72.59% | $20.4M |
| 9018194000 | APPARATUS, FUNCTIONAL EXPLORATORY EXAMINATION& PTS | $106.9M | 8.16% | 72.57% | $8.7M |
| 9018195500 | PATIENT MONITORING SYSTEMS | $47.5M | 7.07% | 64.60% | $3.4M |
| 9018199550 | ELECTRO-DIAGNOSTIC APPARATUS, NESOI | $28.1M | 8.10% | 78.30% | $2.3M |
| 9018199530 | BASAL METABOLISM AND BLOOD PRESSURE APPARATUS | $8.8M | 9.78% | 93.80% | $858K |
| 9018197500 | PRINTD CIRC ASSEMB FOR PARAMETER ACQUISITION MODUL | $3.3M | 9.20% | 89.35% | $305K |
| 9018199535 | ELECTROENCEPHALOGRAPHS(EEG)&ELECTROMYOGRAPHS(EMG) | $555K | 8.41% | 83.15% | $47K |
PARTS&ACCESSORIES FOR ELECTRO-DIAGNOSTIC APPARATUS
APPARATUS, FUNCTIONAL EXPLORATORY EXAMINATION& PTS
PATIENT MONITORING SYSTEMS
ELECTRO-DIAGNOSTIC APPARATUS, NESOI
BASAL METABOLISM AND BLOOD PRESSURE APPARATUS
PRINTD CIRC ASSEMB FOR PARAMETER ACQUISITION MODUL
ELECTROENCEPHALOGRAPHS(EEG)&ELECTROMYOGRAPHS(EMG)
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 9018199560 | PARTS&ACCESSORIES FOR ELECTRO-DIAGNOSTIC APPARATUS | $169.8M |
| 9018194000 | APPARATUS, FUNCTIONAL EXPLORATORY EXAMINATION& PTS | $99.5M |
| 9018195500 | PATIENT MONITORING SYSTEMS | $72.3M |
| 9018199550 | ELECTRO-DIAGNOSTIC APPARATUS, NESOI | $40.4M |
| 9018199535 | ELECTROENCEPHALOGRAPHS(EEG)&ELECTROMYOGRAPHS(EMG) | $4.4M |
| 9018197500 | PRINTD CIRC ASSEMB FOR PARAMETER ACQUISITION MODUL | $3.3M |
| 9018199530 | BASAL METABOLISM AND BLOOD PRESSURE APPARATUS | $1.2M |
PARTS&ACCESSORIES FOR ELECTRO-DIAGNOSTIC APPARATUS
9.2M no
APPARATUS, FUNCTIONAL EXPLORATORY EXAMINATION& PTS
4.0M no
PATIENT MONITORING SYSTEMS
5.2M no
ELECTRO-DIAGNOSTIC APPARATUS, NESOI
396.8K no
ELECTROENCEPHALOGRAPHS(EEG)&ELECTROMYOGRAPHS(EMG)
1.6K no
PRINTD CIRC ASSEMB FOR PARAMETER ACQUISITION MODUL
7.2K no
BASAL METABOLISM AND BLOOD PRESSURE APPARATUS
3.6M no
INSTR & APPL F MEDICAL SURGICAL DENTAL VET, NESOI
HS 901890
MED NEEDLES. NESOI, CATHERERS ETC AND PARTS ETC
HS 901839
ARTIFICIAL JOINTS & PARTS & ACCESSORIES THEROF,NES
HS 902139
OZONE,OXYGEN,ETC THERAPY, RESPIRATION APPARATUS,PT
HS 901920
MEAS CHECKNG INSTRUMENT & MACH, NOT OPTICAL, NESOI
HS 903180
ARTIFICIAL JOINTS AND PARTS AND ACCESSORIES THEROF
HS 902131
| State | Imports | Exports | Balance |
|---|---|---|---|
| California | $70.6M | $58.7M | -$11.9M |
| Illinois | $38.6M | $54.2M | +$15.6M |
| Minnesota | $32.1M | $38.8M | +$6.7M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| CHICAGO, IL | $30.0M | $75.6M | +$45.6M |
| NEW ORLEANS, LA | $34.2M | $45.4M | +$11.2M |
| CLEVELAND, OH | $36.7M | $21.7M | -$15.0M |