Description of a procedure with a five-digit code number to identify professional services (see Box C-1 ). The codes are maintained (published annually) and copyrighted by the American Medical Association (AMA).Box C-1CURRENT PROCEDURAL TERMINOLOGY CODE DIGIT ANALYSIS
Insurance Encyclopedia
CPT manual: Appendix A
Section of the CPT manual located near the back that is a comprehensive list of all the two-digit CPT modifiers and two-digit Level II HCPCS national modifiers with complete explanations for their use.
CPT manual: Appendix B
Section of the CPT manual near the back that contains a complete list of additions, deletions, and revisions from the previous edition.
CPT modifier
Two-character code that may follow a five-digit CPT code to indicate a service or procedure has been altered in some way from the stated CPT or HCPCS Level II description but not sufficient to change the basic definition of the service.
CPT-4
Current Procedural Terminology, Fourth Edition, code reference book. See Current Procedural Terminology (CPT).