Specific code 2015 ICD-9-CM Diagnosis Code 297.1
Delusional disorder
  • 2015
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • ICD-9-CM 297.1 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 297.1 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
Convert to ICD-10-CM: 297.1 converts approximately to:
  • 2015/16 ICD-10-CM F22 Delusional disorders
Approximate Synonyms
  • Chronic paranoid psychosis
  • Delusional disorder, erotomatic
  • Delusional disorder, grandiose
  • Delusional disorder, jealous
  • Delusional disorder, mixed
  • Delusional disorder, mixed type
  • Delusional disorder, somatic
  • Erotomanic delusion disorder
  • Grandiose delusion disorder
  • Jealous delusion disorder
  • Mental condition
  • Psychosis, paranoid, chronic
  • Somatic delusion disorder
Clinical Information
  • A disorder characterized by the presence of one or more nonbizarre delusions that persist for at least 1 month; the delusion(s) are not due to schizophrenia or a mood disorder, and do not impair psychosocial functioning apart from the ramifications of the delusion(s)
  • A kind of psychotic disorder
  • Disorder with presentation of a facade of coldness with characteristic pervasive mistrust and suspiciousness of others
297.1 Excludes
  • paranoid personality disorder (301.0)
Applies To
  • Chronic paranoid psychosis
  • Sander's disease
  • Systematized delusions
ICD-9-CM Volume 2 Index entries containing back-references to 297.1:
  • Cotard's syndrome (paranoia) 297.1
  • Delusions (paranoid) 297.9
    • grandiose 297.1
    • systematized 297.1
  • Disease, diseased - see also Syndrome
    • Sander's (paranoia) 297.1
  • Disorder - see also Disease
    • delusional 297.1
  • Paranoia 297.1
  • Psychosis 298.9
    • paranoic 297.1
  • Sander's disease (paranoia) 297.1
  • Syndrome - see also Disease
    • Cotard's (paranoia) 297.1
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 297.1 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 2015 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.