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Title 21

Displaying title 21, up to date as of 7/17/2026. Title 21 was last amended 7/09/2026.
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Title 21Food and DrugsPart / Section
Chapter IFood and Drug Administration, Department of Health and Human Services1 – 1299
Subchapter HMedical Devices800 – 898
Part 882Neurological Devices882.1 – 882.5970
Subpart BNeurological Diagnostic Devices882.1020 – 882.1950
§ 882.1020Rigidity analyzer.
§ 882.1030Ataxiagraph.
§ 882.1200Two-point discriminator.
§ 882.1240Echoencephalograph.
§ 882.1275Electroconductive media.
§ 882.1310Cortical electrode.
§ 882.1320Cutaneous electrode.
§ 882.1330Depth electrode.
§ 882.1340Nasopharyngeal electrode.
§ 882.1350Needle electrode.
§ 882.1400Electroencephalograph.
§ 882.1410Electroencephalograph electrode/lead tester.
§ 882.1420Electroencephalogram (EEG) signal spectrum analyzer.
§ 882.1430Electroencephalograph test signal generator.
§ 882.1440Neuropsychiatric interpretive electroencephalograph assessment aid.
§ 882.1450Brain injury adjunctive interpretive electroencephalograph assessment aid.
§ 882.1455Traumatic brain injury eye movement assessment aid.
§ 882.1460Nystagmograph.
§ 882.1470Computerized cognitive assessment aid.
§ 882.1471Computerized cognitive assessment aid for concussion.
§ 882.1480Neurological endoscope.
§ 882.1491Pediatric Autism Spectrum Disorder diagnosis aid.
§ 882.1500Esthesiometer.
§ 882.1525Tuning fork.
§ 882.1540Galvanic skin response measurement device.
§ 882.1550Nerve conduction velocity measurement device.
§ 882.1560Skin potential measurement device.
§ 882.1561Evoked photon image capture device.
§ 882.1565Brain temperature measurement system.
§ 882.1570Powered direct-contact temperature measurement device.
§ 882.1580Non-electroencephalogram (EEG) physiological signal based seizure monitoring system.
§ 882.1610Alpha monitor.
§ 882.1620Intracranial pressure monitoring device.
§ 882.1630Cranial motion measurement device.
§ 882.1700Percussor.
§ 882.1750Pinwheel.
§ 882.1790Ocular plethysmograph.
§ 882.1825Rheoencephalograph.
§ 882.1835Physiological signal amplifier.
§ 882.1845Physiological signal conditioner.
§ 882.1855Electroencephalogram (EEG) telemetry system.
§ 882.1870Evoked response electrical stimulator.
§ 882.1880Evoked response mechanical stimulator.
§ 882.1890Evoked response photic stimulator.
§ 882.1900Evoked response auditory stimulator.
§ 882.1925Ultrasonic scanner calibration test block.
§ 882.1935Near Infrared (NIR) Brain Hematoma Detector.
§ 882.1950Tremor transducer.