• Encephalopathy (acute) G93.40
    ICD-10-CM Diagnosis Code G93.40

    Encephalopathy, unspecified

      2016 2017 2018 2019 Billable/Specific Code

    • acute necrotizing hemorrhagic G04.30
      ICD-10-CM Diagnosis Code G04.30

      Acute necrotizing hemorrhagic encephalopathy, unspecified

        2016 2017 2018 2019 Billable/Specific Code
      • postimmunization G04.32
        ICD-10-CM Diagnosis Code G04.32

        Postimmunization acute necrotizing hemorrhagic encephalopathy

          2016 2017 2018 2019 Billable/Specific Code
        Use Additional
      • postinfectious G04.31
        ICD-10-CM Diagnosis Code G04.31

        Postinfectious acute necrotizing hemorrhagic encephalopathy

          2016 2017 2018 2019 Billable/Specific Code
      • specified NEC G04.39
        ICD-10-CM Diagnosis Code G04.39

        Other acute necrotizing hemorrhagic encephalopathy

          2016 2017 2018 2019 Billable/Specific Code
        Code Also
        • underlying etiology, if applicable
    • alcoholic G31.2
      ICD-10-CM Diagnosis Code G31.2

      Degeneration of nervous system due to alcohol

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Alcoholic cerebellar ataxia
      • Alcoholic cerebellar degeneration
      • Alcoholic cerebral degeneration
      • Alcoholic encephalopathy
      • Dysfunction of the autonomic nervous system due to alcohol
      Code Also
      • associated alcoholism (F10.-)
    • anoxic - see Damage, brain, anoxic
    • arteriosclerotic I67.2
      ICD-10-CM Diagnosis Code I67.2

      Cerebral atherosclerosis

        2016 2017 2018 2019 Billable/Specific Code Adult Dx (15-124 years)
      Applicable To
      • Atheroma of cerebral and precerebral arteries
    • centrolobar progressive G37.0
      (Schilder)
      ICD-10-CM Diagnosis Code G37.0

      Diffuse sclerosis of central nervous system

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Periaxial encephalitis
      • Schilder's disease
      Type 1 Excludes
      • X linked adrenoleukodystrophy (E71.52-)
    • congenital Q07.9
      ICD-10-CM Diagnosis Code Q07.9

      Congenital malformation of nervous system, unspecified

        2016 2017 2018 2019 Billable/Specific Code POA Exempt
      Applicable To
      • Congenital anomaly NOS of nervous system
      • Congenital deformity NOS of nervous system
      • Congenital disease or lesion NOS of nervous system
    • degenerative, in specified disease NEC G32.89
      ICD-10-CM Diagnosis Code G32.89

      Other specified degenerative disorders of nervous system in diseases classified elsewhere

        2016 2017 2018 2019 Billable/Specific Code Manifestation Code
      Applicable To
      • Degenerative encephalopathy in diseases classified elsewhere
    • demyelinating callosal G37.1
      ICD-10-CM Diagnosis Code G37.1

      Central demyelination of corpus callosum

        2016 2017 2018 2019 Billable/Specific Code
    • due to
      • drugs - G92
        - see also Table of Drugs and Chemicals
        ICD-10-CM Diagnosis Code G92

        Toxic encephalopathy

          2016 2017 2018 2019 Billable/Specific Code
        Applicable To
        • Toxic encephalitis
        • Toxic metabolic encephalopathy
        Code First
        • , if applicable, drug induced (T36-T50)
        • (T51-T65) to identify toxic agent
    • hepatic - see Failure, hepatic
    • hyperbilirubinemic, newborn P57.9
      ICD-10-CM Diagnosis Code P57.9

      Kernicterus, unspecified

        2016 2017 2018 2019 Billable/Specific Code Code on Newborn Record
      • due to isoimmunization P57.0
        (conditions in P55)
        ICD-10-CM Diagnosis Code P57.0

        Kernicterus due to isoimmunization

          2016 2017 2018 2019 Billable/Specific Code Code on Newborn Record
    • hypertensive I67.4
      ICD-10-CM Diagnosis Code I67.4

      Hypertensive encephalopathy

        2016 2017 2018 2019 Billable/Specific Code
      Type 2 Excludes
      • insufficiency, NOS, of precerebral arteries (G45.2)
    • hypoglycemic E16.2
      ICD-10-CM Diagnosis Code E16.2

      Hypoglycemia, unspecified

        2016 2017 2018 2019 Billable/Specific Code
      Type 1 Excludes
    • hypoxic - see Damage, brain, anoxic
    • hypoxic ischemic P91.60
      ICD-10-CM Diagnosis Code P91.60

      Hypoxic ischemic encephalopathy [HIE], unspecified

        2016 2017 2018 2019 Billable/Specific Code Code on Newborn Record
      • mild P91.61
        ICD-10-CM Diagnosis Code P91.61

        Mild hypoxic ischemic encephalopathy [HIE]

          2016 2017 2018 2019 Billable/Specific Code Code on Newborn Record
      • moderate P91.62
        ICD-10-CM Diagnosis Code P91.62

        Moderate hypoxic ischemic encephalopathy [HIE]

          2016 2017 2018 2019 Billable/Specific Code Code on Newborn Record
      • severe P91.63
        ICD-10-CM Diagnosis Code P91.63

        Severe hypoxic ischemic encephalopathy [HIE]

          2016 2017 2018 2019 Billable/Specific Code Code on Newborn Record
    • in (due to) (with)
      • birth injury P11.1
        ICD-10-CM Diagnosis Code P11.1

        Other specified brain damage due to birth injury

          2016 2017 2018 2019 Billable/Specific Code Code on Newborn Record
      • hyperinsulinism E16.1
        ICD-10-CM Diagnosis Code E16.1

        Other hypoglycemia

          2016 2017 2018 2019 Billable/Specific Code
        Applicable To
        • Functional hyperinsulinism
        • Functional nonhyperinsulinemic hypoglycemia
        • Hyperinsulinism NOS
        • Hyperplasia of pancreatic islet beta cells NOS
        Type 1 Excludes
      • influenza - see Influenza, with, encephalopathy
      • lack of vitamin E56.9
        - see also Deficiency, vitamin
        ICD-10-CM Diagnosis Code E56.9

        Vitamin deficiency, unspecified

          2016 2017 2018 2019 Billable/Specific Code
      • neoplastic disease D49.9
        (see also Neoplasm)
        ICD-10-CM Diagnosis Code D49.9

        Neoplasm of unspecified behavior of unspecified site

          2016 2017 2018 2019 Billable/Specific Code
      • serum T80.69
        - see also Reaction, serum
        ICD-10-CM Diagnosis Code T80.69

        Other serum reaction due to other serum

          2016 2017 2018 2019 Non-Billable/Non-Specific Code
        Code Also
        • , if applicable, arthropathy in hypersensitivity reactions classified elsewhere (M36.4)
      • syphilis A52.17
        ICD-10-CM Diagnosis Code A52.17

        General paresis

          2016 2017 2018 2019 Billable/Specific Code
        Applicable To
        • Dementia paralytica
      • trauma (postconcussional) F07.81
        ICD-10-CM Diagnosis Code F07.81

        Postconcussional syndrome

          2016 2017 2018 2019 Billable/Specific Code
        Applicable To
        • Postcontusional syndrome (encephalopathy)
        • Post-traumatic brain syndrome, nonpsychotic
        Type 1 Excludes
        • current concussion (brain) (S06.0-)
        • postencephalitic syndrome (F07.89)
        Use Additional
        • code to identify associated post-traumatic headache, if applicable (G44.3-)
      • vaccination G04.02
        ICD-10-CM Diagnosis Code G04.02

        Postimmunization acute disseminated encephalitis, myelitis and encephalomyelitis

          2016 2017 2018 2019 Billable/Specific Code
        Applicable To
        • Encephalitis, post immunization
        • Encephalomyelitis, post immunization
        Use Additional
    • lead - see Poisoning, lead
    • metabolic G93.41
      ICD-10-CM Diagnosis Code G93.41

      Metabolic encephalopathy

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Septic encephalopathy
      • drug induced G92
        ICD-10-CM Diagnosis Code G92

        Toxic encephalopathy

          2016 2017 2018 2019 Billable/Specific Code
        Applicable To
        • Toxic encephalitis
        • Toxic metabolic encephalopathy
        Code First
        • , if applicable, drug induced (T36-T50)
        • (T51-T65) to identify toxic agent
      • toxic G92
        ICD-10-CM Diagnosis Code G92

        Toxic encephalopathy

          2016 2017 2018 2019 Billable/Specific Code
        Applicable To
        • Toxic encephalitis
        • Toxic metabolic encephalopathy
        Code First
        • , if applicable, drug induced (T36-T50)
        • (T51-T65) to identify toxic agent
    • myoclonic, early, symptomatic - see Epilepsy, generalized, specified NEC
    • necrotizing, subacute G31.82
      (Leigh)
      ICD-10-CM Diagnosis Code G31.82

      Leigh's disease

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Subacute necrotizing encephalopathy
    • neonatal P91.819
      ICD-10-CM Diagnosis Code P91.819

      Neonatal encephalopathy, unspecified

        2018 - New Code 2019 Billable/Specific Code Code on Newborn Record POA Exempt
      • in diseases classified elsewhere P91.811
        ICD-10-CM Diagnosis Code P91.811

        Neonatal encephalopathy in diseases classified elsewhere

          2018 - New Code 2019 Billable/Specific Code Code on Newborn Record POA Exempt Manifestation Code
        Code First
        • underlying condition, if known, such as:
        • congenital cirrhosis (of liver) (P78.81)
        • intracranial nontraumatic hemorrhage of newborn (P52.-)
        • kernicterus (P57.-)
    • pellagrous E52
      ICD-10-CM Diagnosis Code E52

      Niacin deficiency [pellagra]

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Niacin (-tryptophan) deficiency
      • Nicotinamide deficiency
      • Pellagra (alcoholic)
      Type 1 Excludes
      • sequelae of niacin deficiency (E64.8)
    • portosystemic - see Failure, hepatic
    • postcontusional F07.81
      ICD-10-CM Diagnosis Code F07.81

      Postconcussional syndrome

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Postcontusional syndrome (encephalopathy)
      • Post-traumatic brain syndrome, nonpsychotic
      Type 1 Excludes
      • current concussion (brain) (S06.0-)
      • postencephalitic syndrome (F07.89)
      Use Additional
      • code to identify associated post-traumatic headache, if applicable (G44.3-)
    • posthypoglycemic E16.1
      (coma)
      ICD-10-CM Diagnosis Code E16.1

      Other hypoglycemia

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Functional hyperinsulinism
      • Functional nonhyperinsulinemic hypoglycemia
      • Hyperinsulinism NOS
      • Hyperplasia of pancreatic islet beta cells NOS
      Type 1 Excludes
    • postradiation G93.89
      ICD-10-CM Diagnosis Code G93.89

      Other specified disorders of brain

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Postradiation encephalopathy
    • saturnine - see Poisoning, lead
    • septic G93.41
      ICD-10-CM Diagnosis Code G93.41

      Metabolic encephalopathy

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Septic encephalopathy
    • specified NEC G93.49
      ICD-10-CM Diagnosis Code G93.49

      Other encephalopathy

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Encephalopathy NEC
    • spongioform, subacute A81.09
      (viral)
      ICD-10-CM Diagnosis Code A81.09

      Other Creutzfeldt-Jakob disease

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • CJD
      • Familial Creutzfeldt-Jakob disease
      • Iatrogenic Creutzfeldt-Jakob disease
      • Sporadic Creutzfeldt-Jakob disease
      • Subacute spongiform encephalopathy (with dementia)
    • toxic G92
      ICD-10-CM Diagnosis Code G92

      Toxic encephalopathy

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Toxic encephalitis
      • Toxic metabolic encephalopathy
      Code First
      • , if applicable, drug induced (T36-T50)
      • (T51-T65) to identify toxic agent
      • metabolic G92
        ICD-10-CM Diagnosis Code G92

        Toxic encephalopathy

          2016 2017 2018 2019 Billable/Specific Code
        Applicable To
        • Toxic encephalitis
        • Toxic metabolic encephalopathy
        Code First
        • , if applicable, drug induced (T36-T50)
        • (T51-T65) to identify toxic agent
    • traumatic (postconcussional) F07.81
      ICD-10-CM Diagnosis Code F07.81

      Postconcussional syndrome

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Postcontusional syndrome (encephalopathy)
      • Post-traumatic brain syndrome, nonpsychotic
      Type 1 Excludes
      • current concussion (brain) (S06.0-)
      • postencephalitic syndrome (F07.89)
      Use Additional
      • code to identify associated post-traumatic headache, if applicable (G44.3-)
    • vitamin B deficiency NEC E53.9
      ICD-10-CM Diagnosis Code E53.9

      Vitamin B deficiency, unspecified

        2016 2017 2018 2019 Billable/Specific Code
      • vitamin B1 E51.2
        ICD-10-CM Diagnosis Code E51.2

        Wernicke's encephalopathy

          2016 2017 2018 2019 Billable/Specific Code
    • Wernicke's E51.2
      ICD-10-CM Diagnosis Code E51.2

      Wernicke's encephalopathy

        2016 2017 2018 2019 Billable/Specific Code