Hallucination is a general symptom where there is a perception of something (as a visual image or a sound) with no external cause usually arising from a disorder of the nervous system (as in delirium tremens or in functional psychosis without known neurological disease) or in response to drugs (as LSD). [ URL:http://www2.merriam-webster.com/cgi-bin/mwmednlm?book=Medical&va=hallucinations ]

This is just here as a test because I lose it

Term information

database cross reference
  • UMLS_ICD9CM_2005_AUI:A0065642
  • UMLS_CUI:C0018524
  • ICD9CM_2005:780.1
  • SYMP:0000607

Term relations

Subclass of: