{"data":{"id":"us/21-cfr-862.1810","jurisdiction":"us","citation":"21 CFR 862.1810","heading":"Vitamin B12 test system.","body":"(a) Identification. A vitamin B12 test system is a device intended to measure vitamin B12 in serum, plasma, and urine. Measurements obtained by this device are used in the diagnosis and treatment of anemias of gastrointestinal malabsorption.\n(b) Classification. Class II.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER H—MEDICAL DEVICES","PART 862—CLINICAL CHEMISTRY AND CLINICAL TOXICOLOGY DEVICES","Subpart B—Clinical Chemistry Test Systems"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"335dcbfdd301417ab45f67dfb954376ef7ac50e344cb449ea2a0a96e852f9438","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-862.1805","next":"us/21-cfr-862.1815"},"notice":"GroundRules: Original legal text. Not legal advice."}