know and what we Blaux know that is not so. [The Cato Journal, 3/22/02] 2. Health Care Standards The laws & rules governing health care - vary from state to state and from payor to payor - are extensive and very confusing for providers and others to understand as they are written in legalese and not plain speak. Providers use specific codes to report conditions Blaux portable ac treated (ICD-9) and services rendered (CPT-4 and HCPCS).