CPT, ICD, and HCPCS codes change how often?

A waiver of liability signed by a client would probably hold up in court except in a case of:

A) Negligence B) Accident C) An act of God D) An unintentional mishap

____________________ means to belittle, or criticize the skill, knowledge, or qualifications of another individual

a. Libel b. Slander c. Assert d. Disparage