{"data":{"id":"us/21-cfr-868.1900","jurisdiction":"us","citation":"21 CFR 868.1900","heading":"Diagnostic pulmonary-function interpretation calculator.","body":"(a) Identification. A diagnostic pulmonary-function interpretation calculator is a device that interprets pulmonary study data to determine clinical significance of pulmonary-function values.\n(b) Classification. Class II (performance standards).","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER H—MEDICAL DEVICES","PART 868—ANESTHESIOLOGY DEVICES","Subpart B—Diagnostic 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":"0c2f9a9e0967c8b20251e03044303ccf0ff564ea168b3cd8a19720958fcec05b","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-868.1890","next":"us/21-cfr-868.1910"},"notice":"GroundRules: Original legal text. Not legal advice."}