{"data":{"id":"us/42-cfr-493.833","jurisdiction":"us","citation":"42 CFR 493.833","heading":"Condition: Diagnostic immunology.","body":"The specialty of diagnostic immunology includes for purposes of proficiency testing the subspecialties of syphilis serology and general immunology.","path":["Title 42—Public Health","CHAPTER IV—CENTERS FOR MEDICARE \u0026 MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER G—STANDARDS AND CERTIFICATION","PART 493—LABORATORY REQUIREMENTS","Subpart H—Participation in Proficiency Testing for Laboratories Performing Nonwaived Testing"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-42.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:11Z","sha256":"218be3ecee5233ada6944798a29e26f040f293adccbaf94da57c937dca7e7f5c","source_id":"us-cfr","stale":true,"prev":"us/42-cfr-493.831","next":"us/42-cfr-493.835"},"notice":"GroundRules: Original legal text. Not legal advice."}