{"data":{"id":"us/20-cfr-220.27","jurisdiction":"us","citation":"20 CFR 220.27","heading":"What is needed to show an impairment.","body":"A physical or mental impairment must result from anatomical, physiological, or psychological abnormalities which can be shown by medically acceptable clinical and laboratory diagnostic techniques. A physical or mental impairment must be established by medical evidence consisting of signs, symptoms, and laboratory findings, not only by the claimant's statement of symptoms. (See § 220.113 for further information about what is meant by symptoms, signs, and laboratory findings.) (See also § 220.112 for the effect of a medical opinion about whether or not a claimant is disabled.)","path":["Title 20—Employees' Benefits","CHAPTER II—RAILROAD RETIREMENT BOARD","SUBCHAPTER B—REGULATIONS UNDER THE RAILROAD RETIREMENT ACT","PART 220—DETERMINING DISABILITY","Subpart D—Disability Under the Railroad Retirement Act for Any Regular Employment"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-20.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:45Z","sha256":"9ff84cda5904a828c82ddaec3f5ff61234439e00882cb9b916bf11f8464732a3","source_id":"us-cfr","stale":true,"prev":"us/20-cfr-220.26","next":"us/20-cfr-220.28"},"notice":"GroundRules: Original legal text. Not legal advice."}