ICD-9-CM

5. MENTAL, BEHAVIORAL AND NEURODEVELOPMENTAL DISORDERS (290-319)

ORGANIC PSYCHOTIC CONDITIONS (290-294) Includes: psychotic organic brain syndrome Excludes: nonpsychotic syndromes of organic etiology (310.0-310.9) psychoses classifiable to 295-298 and without impairment of orientation, comprehension, calculation, learning capacity, and judgement, but associated with physical disease, injury, or condition affecting the brain [e.g., following childbirth] (295.0-298.8)
290: Dementias Code first the associated neurological condition Excludes: dementia due to alcohol (291.0-291.2) dementia due to drugs (292.82) dementia not classified as senile, presenile, or arteriosclerotic (294.10-294.11) psychoses classifiable to 295-298 occurring in the senium without dementia or delirium (295.0-298.8) senility with mental changes of nonpsychotic severity (310.1) transient organic psychotic conditions (293.0-293.9)
291: Alcohol-induced mental disorders Excludes: alcoholism without psychosis (303.0-303.9)
292: Drug-induced mental disorders Includes: organic brain syndrome associated with consumption of drugs Use additional code for any associated drug dependence (304.0-304.9) Use additional E code to identify drug
293: Transient mental disorders due to conditions classified elsewhere Includes: transient organic mental disorders not associated with alcohol or drugs Code first the associated physical or neurological condition Excludes: confusional state or delirium superimposed on senile dementia (290.3) dementia due to: alcohol (291.0-291.9) arteriosclerosis (290.40-290.43) drugs (292.82) senility (290.0)
294: Persistent mental disorders due to conditions classified elsewhere Includes: organic psychotic brain syndromes (chronic), not elsewhere classified

ORGANIC PSYCHOTIC CONDITIONS (290-294)

Includes:

psychotic organic brain syndrome

Excludes:

nonpsychotic syndromes of organic etiology (310.0-310.9)

psychoses classifiable to 295-298 and without impairment of orientation, comprehension, calculation, learning capacity, and judgement, but associated with physical disease, injury, or condition affecting the brain [e.g., following childbirth] (295.0-298.8)

290: Dementias

Code first the associated neurological condition

Excludes:

dementia due to alcohol (291.0-291.2)

dementia due to drugs (292.82)

dementia not classified as senile, presenile, or arteriosclerotic (294.10-294.11)

psychoses classifiable to 295-298 occurring in the senium without dementia or delirium (295.0-298.8)

senility with mental changes of nonpsychotic severity (310.1)

transient organic psychotic conditions (293.0-293.9)

291: Alcohol-induced mental disorders

Excludes:

alcoholism without psychosis (303.0-303.9)