organic mental disorder; organic psychosis
Medical term for psychiatric conditions with a known physical cause, such as brain injury, disease, or substance effects.
Organic mental disorders can be caused by brain damage or illness.
Functional mental disorder, where no clear physical cause is identified, in contrast to 器質性精神障害 which has an identifiable organic basis.
Compound of 器質 (organic, relating to bodily organs), 性 (-ic, nature), and 精神障害 (mental disorder). A modern medical term.