Level

Identifiable position to which codes in a scheme of codes are related.

In a “level based” hierarchy the level describes a group of Codes which are characterised by homogeneous coding, and where the parent of each Code in the group is at the same higher level of the Hierarchy.

In a “value based” hierarchy the level describes information about the Hierarchical Codes at the specified nesting level (Source SDMX (2016)).

A Statistical Classification has a structure which is composed of one or several Levels. A Level often is associated with a Concept, which defines it. A linear classification has only one Level (Source: GSIM Glossary).