Specific code 2012 ICD-9-CM Diagnosis Code 293.1
Subacute delirium
  • ICD-9-CM 293.1 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 293.1 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 293.1.
  • More recent version(s) of ICD-9-CM 293.1: 2013 2014.
Disease Synonyms
  • Delirium, subacute
Applies To
  • Subacute:
    • confusional state
    • infective psychosis
    • organic reaction
    • posttraumatic organic psychosis
    • psycho-organic syndrome
    • psychosis associated with endocrine or metabolic disorder
Convert to ICD-10-CM: 293.1 converts approximately to:
  • 2014 ICD-10-CM F05 Delirium due to known physiological condition
ICD-9-CM Volume 2 Index entries containing back-references to 293.1:
  • Confusion, confused (mental) (state) (see also State, confusional) 298.9
    • subacute 293.1
  • Delirium, delirious 780.09
    • subacute (psychotic) 293.1
  • Insanity, insane (see also Psychosis) 298.9
  • Madness (see also Psychosis) 298.9
    • myxedema (acute) 293.0
      • subacute 293.1
  • Myxedema (adult) (idiocy) (infantile) (juvenile) (thyroid gland) (see also Hypothyroidism) 244.9
    • madness (acute) 293.0
      • subacute 293.1
  • 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
            • acute (psychosis) 293.0
            • subacute (psychosis) 293.1
          • Jakob-Creutzfeldt 046.19
          • liver, alcoholic (see also Psychosis, alcoholic) 291.9
        • disorder
          • cerebrovascular
          • endocrine or metabolic 293.9
            • acute (psychosis) 293.0
            • subacute (psychosis) 293.1
        • epilepsy
        • Huntington's chorea
        • infection
          • brain 293.9
            • acute (psychosis) 293.0
            • chronic 294.8
            • subacute (psychosis) 293.1
          • intracranial NEC 293.9
            • acute (psychosis) 293.0
            • chronic 294.8
            • subacute (psychosis) 293.1
        • 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
            • acute (psychosis) 293.0
            • chronic 294.8
            • subacute (psychosis) 293.1
        • unspecified physical condition 293.9
      • infective 293.9
        • acute (psychosis) 293.0
        • subacute 293.1
      • posttraumatic 293.9
        • acute 293.0
        • subacute 293.1
      • specified type NEC 294.8
      • transient 293.9
  • Reaction
  • State
  • Subdelirium 293.1
  • Syndrome - see also Disease
    • brain (acute) (chronic) (nonpsychotic) (organic) (with behavioral reaction) (with neurotic reaction) 310.9
      • with
        • presenile brain disease (see also Dementia, presenile) 290.10
        • psychosis, psychotic reaction (see also Psychosis, organic) 294.9
      • chronic alcoholic 291.2
      • congenital (see also Disability, intellectual) 319
      • postcontusional 310.2
      • posttraumatic
        • nonpsychotic 310.2
        • psychotic 293.9
          • acute 293.0
          • chronic (see also Psychosis, organic) 294.8
          • subacute 293.1
      • psycho-organic (see also Syndrome, psycho-organic) 310.9
      • psychotic (see also Psychosis, organic) 294.9
      • senile (see also Dementia, senile) 290.0
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 293.1 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 2012 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.