21 CFR § 862.1535 - Ornithine carbamyl transferase test system.

---
identifier: "/us/cfr/t21/s862.1535"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 862.1535 - Ornithine carbamyl transferase test system."
title_number: 21
title_name: "Food and Drugs"
section_number: "862.1535"
section_name: "Ornithine carbamyl transferase test system."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "H"
subchapter_name: "MEDICAL DEVICES"
part_number: "862"
part_name: "CLINICAL CHEMISTRY AND CLINICAL TOXICOLOGY DEVICES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 351, 360, 360c, 360e, 360j, 360 371."
regulatory_source: "52 FR 16122, May 1, 1987, unless otherwise noted."
cfr_part: "862"
---


# 862.1535 Ornithine carbamyl transferase test system.

(a) *Identification.* An ornithine carbamyl transferase test system is a device intended to measure the activity of the enzyme ornithine carbamyl transferase (OCT) in serum. Ornithine carbamyl transferase measurements are used in the diagnosis and treatment of liver diseases, such as infectious hepatitis, acute cholecystitis (inflammation of the gall bladder), cirrhosis, and liver metastases.

(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.

[52 FR 16122, May 1, 1987, as amended at 65 FR 2307, Jan. 14, 2000]