21 CFR 862.1375
§ 862.1375 Histidine test system.
United States · 21 CFR — Food and Drugs · Status: effective
Cite this
- Citation
- 21 CFR 862.1375, § 862.1375 Histidine test system, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/89118
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Full text
(a) Identification. A histidine test system is a device intended to measure free histidine (an amino acid) in plasma and urine. Histidine measurements are used in the diagnosis and treatment of hereditary histidinemia characterized by excess histidine in the blood and urine often resulting in mental retardation and disordered speech development.
(b) Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to § 862.9.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.