{"data":{"id":"us/21-cfr-890.5720","jurisdiction":"us","citation":"21 CFR 890.5720","heading":"Water circulating hot or cold pack.","body":"(a) Identification. A water circulating hot or cold pack is a device intended for medical purposes that operates by pumping heated or chilled water through a plastic bag and that provides hot or cold therapy for body surfaces.\n(b) Classification. Class II (special controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to § 890.9.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER H—MEDICAL DEVICES","PART 890—PHYSICAL MEDICINE DEVICES","Subpart F—Physical Medicine Therapeutic Devices"],"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":"d6638a23b8945b863dd0141480e694c1d13052b6d950d689fbf8b4d3d55263dc","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-890.5710","next":"us/21-cfr-890.5730"},"notice":"GroundRules: Original legal text. Not legal advice."}