Guidelines

1. Information and instructions at the beginning of each of the six major sections of the Current Procedural Terminology (CPT) code book when coding medical services and procedures. Additional guidelines are provided at the beginning of each subsection and for code ranges. Guidelines present definitions and explanations of terms and phrases, applicable modifiers, explanation of notes, unlisted services, special reports information, and clinical examples. These are all factors to appropriately interpret and report the procedures and services contained in a particular section. 2. Written general rules and procedures to assist physicians in making a diagnosis and giving treatment. These are set down to change practice styles, lessen unnecessary care, and reduce costs. Depending on the region of the United States, may also be referred to as medical practice parameters, clinical practice guidelines , or clinical protocols .

Guiding principles

Principles that guide sharing the coverage of a loss between two insurance companies. These principles are developed by property and liability associations.
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Suggested procedures for establishing primacy of coverage in situations involving loss under a variety of coverage forms and, perhaps, more than one interested party. Last promulgated in the 1960s, the spirit of the principles survives because insurers apparently find that the prescribed procedures commonly lead to equitable settlements for all parties.
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Title of a published set of rules established and endorsed by major property and liability trade associations for adjustments of complex losses covered by several Insurers, particularly with respect to how losses should be apportioned under certain circumstances.