Unspecified psychosis not due to a substance or known physiological condition (F29)
Clinical Information
Negativism - State of mind or behavior characterized by extreme skepticism and persistent opposition or resistance to outside suggestions or advice. (APA, Thesaurus of Psychological Index Terms, 1994)
Instructional Notations
Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Psychosis NOS
- Unspecified schizophrenia spectrum and other psychotic disorder
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Mental and behavioural disorders (F01–F99)
Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders (F20-F29)
- F29 Unspecified psychosis not due to a substance or known physiological condition
Unspecified psychosis not due to a substance or known physiological condition (F29)