This hierarchy contains concepts which are named, authoritative, and internationally relevant staging or grading systems used to either make a judgment about the patient, e.g. cognition, or, evaluate a patient to determine the phase, or progression of a disease.
Some diseases are represented using a staging and/or grading system to signify the severity, extent, or rate of growth of a disease. For example, chronic kidney disease is represented with five stages determined by level of kidney function.
Concepts of the type |Assessment using X assessment scale| are modeled with a proximal primitive parent of 445536008 | Assessment using assessment scale (procedure)| or one of its subtypes, as appropriate.
(See also Why is Content Rejected page, Proprietary Names for information about use of Questionnaire and Scale names)