Specific code 2011 ICD-9-CM Diagnosis Code 298.1
Excitative type psychosis
  • Short description: Excitativ type psychosis.
  • ICD-9-CM 298.1 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 298.1 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2011 version of ICD-9-CM 298.1.
  • More recent version(s) of ICD-9-CM 298.1: 2012 2013 2014.
298.1 Excludes
  • manic-depressive psychosis, manic type (296.0-296.1)
Applies To
  • Acute hysterical psychosis
  • Psychogenic excitation
  • Reactive excitation
Convert to ICD-10-CM: 298.1 converts approximately to:
  • 2014 ICD-10-CM F28 Other psychotic disorder not due to a substance or known physiological condition
ICD-9-CM Volume 2 Index entries containing back-references to 298.1:
  • Excitation
    • psychogenic 298.1
    • reactive (from emotional stress, psychological trauma) 298.1
  • Excitement
    • mental, reactive (from emotional stress, psychological trauma) 298.1
    • state, reactive (from emotional stress, psychological trauma) 298.1
  • Hyperthymergasia (see also Psychosis, affective) 296.0
    • reactive (from emotional stress, psychological trauma) 298.1
  • Hysteria, hysterical 300.10
    • psychosis, acute 298.1
  • Psychosis 298.9
    • acute hysterical 298.1
    • excitation (psychogenic) (reactive) 298.1
    • hysterical 298.8
      • acute 298.1
    • reactive (emotional stress) (psychological trauma) 298.8
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 298.1 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 2011 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.