Impairment

Impairment may refer to:

• In health, any loss or abnormality of physiological, psychological, or anatomical structure or function, whether permanent or temporary. Identifying impairments that contribute to disability, a functional problem for a patient, is a key factor for a health professional to determine appropriate treatment.
• In accounting, a downward revaluation of fixed assets
• A classification of poor water quality for a surface water body under the U.S. Clean Water Act