1 On September 5, 2013, CMS released guidance that discussed the provisions of the final rule regarding the physician order and physician certification of hospital inpatient services. 2  This document includes further clarification of issues addressed in the previous guidance.
Full Answer. Also called a dichotomous key, a taxonomic key gives users a systematic and reproducible way to identify items and organisms. It is used for a variety of purposes, such as identifying unknown organisms to a certain taxonomic level (e.g. family, genus and species) and identifying rocks or minerals.
Primary Key. A primary key is a unique identifier for a database record. When a table is created, one of the fields is typically assigned as the primary key. While the primary key is often a number, it may also be a text field or other data type. For example, if a database contains definitions of computer terms, it would make sense that each term is only listed once in the database.