Human immunodeficiency virus [HIV] disease. 1  B20 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 2  Reimbursement claims with a date of service on or after Oct 1, 2015 require the use of ICD-10-CM codes.  This is the American ICD-10-CM version of B20.
The process of naming and classifying organisms according to set of rules is called taxonomy. In some cultures, taxonomic rules are based traditional uses for plants and animals, and the existence of classification system facilities the transfer of that knowledge through generations.ummary. Modern taxonomy officially began in 1758 with Systema Naturae, the classic work by Carolus Linnaeus. This module, the first in a two-part series on species taxonomy, focuses on Linnaeusâ system for classifying and naming plants and animals.
The classification system in biology is a system which helps scientists organize or name different things and types of objects and organisms.Taxonomy is the classification system for grouping and naming living things under their main domain category (see related questions about the Domain category of classification).e invented the binomial system giving a higher group of organisms the term genus and a lower (fundamental) group species. The genus is always capitalised in writing and the species is not. An example of a binomial name is Orcinus orca, the scientific name of the Killer Whale.