[Code of Federal Regulations] [Title 21 Volume 5] [Revised as of April 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR315.4] [Page 166] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 315--DIAGNOSTIC RADIOPHARMACEUTICALS--Table of Contents Sec. 315.4 Indications. (a) For diagnostic radiopharmaceuticals, the categories of proposed indications for use include, but are not limited to, the following: (1) Structure delineation; (2) Functional, physiological, or biochemical assessment; (3) Disease or pathology detection or assessment; and (4) Diagnostic or therapeutic patient management. (b) Where a diagnostic radiopharmaceutical is not intended to provide disease-specific information, the proposed indications for use may refer to a biochemical, physiological, anatomical, or pathological process or to more than one disease or condition.