Specific code 2012 ICD-9-CM Diagnosis Code 290.20
Senile dementia with delusional features
  • Short description: Senile delusion.
  • ICD-9-CM 290.20 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 290.20 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2012 version of ICD-9-CM 290.20.
  • More recent version(s) of ICD-9-CM 290.20: 2013 2014.
Disease Synonyms
  • Dementia, senile with delusion
  • Dementia, senile with paranoia
  • Dementia, senile with psychosis
  • Senile dementia w delusion
  • Senile dementia w delusions
  • Senile dementia w paranoia
  • Senile dementia w psychosis
  • Senile dementia with delusion
  • Senile dementia with paranoia
  • Senile dementia with psychosis
Applies To
  • Senile dementia, paranoid type
  • Senile psychosis NOS
290.20 can be converted using the following scenario:
Scenario 1
  • 2014 ICD-10-CM F03.90 Unspecified dementia without behavioral disturbance
  • With:
  • 2014 ICD-10-CM F05 Delirium due to known physiological condition
ICD-9-CM Volume 2 Index entries containing back-references to 290.20:
  • Dementia 294.20
    • senile 290.0
      • with
        • acute confusional state 290.3
        • delirium 290.3
        • delusional features 290.20
        • depressive features 290.21
      • depressed type 290.21
      • exhaustion 290.0
      • paranoid type 290.20
  • Disorder - see also Disease
    • mental (nonpsychotic) 300.9
      • affecting management of pregnancy, childbirth, or puerperium 648.4
      • drug-induced 292.9
        • hallucinogen persisting perception 292.89
        • specified type NEC 292.89
      • due to or associated with
      • induced by drug 292.9
      • neurotic (see also Neurosis) 300.9
      • of infancy, childhood or adolescence 313.9
      • persistent
        • other
          • due to conditions classified elsewhere 294.8
        • unspecified
          • due to conditions classified elsewhere 294.9
      • presenile 310.1
      • previous, affecting management of pregnancy V23.89
      • psychoneurotic (see also Neurosis) 300.9
      • psychotic (see also Psychosis) 298.9
      • specific, following organic brain damage 310.9
        • cognitive or personality change of other type 310.1
        • frontal lobe syndrome 310.0
        • postconcussional syndrome 310.2
        • specified type NEC 310.89
      • transient
        • in conditions classified elsewhere 293.9
  • Failure, failed
    • senile (general) 797
      • with psychosis 290.20
  • Insanity, insane (see also Psychosis) 298.9
    • senile 290.20
  • Paranoia 297.1
    • senile 290.20
  • Paranoid
    • dementia (see also Schizophrenia) 295.3
      • praecox (acute) 295.3
      • senile 290.20
    • state 297.9
      • alcohol-induced 291.5
      • climacteric 297.2
      • drug-induced 292.11
      • due to or associated with
        • arteriosclerosis (cerebrovascular) 290.42
        • presenile brain disease 290.12
        • senile brain disease 290.20
      • involutional 297.2
      • menopausal 297.2
      • senile 290.20
      • simple 297.0
      • specified type NEC 297.8
  • Psychosis 298.9
    • organic NEC 294.9
      • due to or associated with
        • addiction
          • alcohol (see also Psychosis, alcoholic) 291.9
          • drug (see also Psychosis, drug) 292.9
        • alcohol intoxication, acute (see also Psychosis, alcoholic) 291.9
        • alcoholism (see also Psychosis, alcoholic) 291.9
        • arteriosclerosis (cerebral) (see also Psychosis, arteriosclerotic) 290.40
        • cerebrovascular disease
          • acute (psychosis) 293.0
          • arteriosclerotic (see also Psychosis, arteriosclerotic) 290.40
        • childbirth - see Psychosis, puerperal
        • dependence
          • alcohol (see also Psychosis, alcoholic) 291.9
          • drug 292.9
        • disease
          • alcoholic liver (see also Psychosis, alcoholic) 291.9
          • brain
            • arteriosclerotic (see also Psychosis, arteriosclerotic) 290.40
          • cerebrovascular
            • acute (psychosis) 293.0
            • arteriosclerotic (see also Psychosis, arteriosclerotic) 290.40
          • endocrine or metabolic 293.9
          • Jakob-Creutzfeldt 046.19
          • liver, alcoholic (see also Psychosis, alcoholic) 291.9
        • disorder
          • cerebrovascular
          • endocrine or metabolic 293.9
        • epilepsy
        • Huntington's chorea
        • infection
        • intoxication
          • alcoholic (acute) (see also Psychosis, alcoholic) 291.9
          • drug (see also Psychosis, drug) 292.9
        • ischemia
          • cerebrovascular (generalized) (see also Psychosis, arteriosclerotic) 290.40
        • Jakob-Creutzfeldt disease (syndrome) 046.19
        • multiple sclerosis
        • physical condition NEC 293.9
        • presenility 290.10
        • puerperium - see Psychosis, puerperal
        • sclerosis, multiple
        • senility 290.20
        • status epilepticus
        • trauma
          • brain (birth) (from electrical current) (surgical) 293.9
        • unspecified physical condition 293.9
      • infective 293.9
      • posttraumatic 293.9
      • specified type NEC 294.8
      • transient 293.9
    • paroxysmal 298.9
      • senile 290.20
    • senile NEC 290.20
      • with
        • delusional features 290.20
        • depressive features 290.21
      • depressed type 290.21
      • paranoid type 290.20
      • simple deterioration 290.20
      • specified type - see categories 295-298
  • Reaction
  • Senility 797
    • with
      • acute confusional state 290.3
      • delirium 290.3
      • mental changes 290.9
      • psychosis NEC (see also Psychosis, senile) 290.20
  • State
  • Syndrome - see also Disease
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 290.20 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2012 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.