2023 ICD-10-CM Index
'E' Terms
Index Terms Starting With 'E' (Encephalopathy)

Index Terms Starting With 'E' (Encephalopathy)

Encephalopathy (acute) G93.40
ICD-10-CM Diagnosis Code G93.40
Encephalopathy, unspecified
- acute necrotizing hemorrhagic G04.30
  ICD-10-CM Diagnosis Code G04.30
  Acute necrotizing hemorrhagic encephalopathy, unspecified
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  - postimmunization G04.32
    ICD-10-CM Diagnosis Code G04.32
    Postimmunization acute necrotizing hemorrhagic encephalopathy
    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Use Additional
    code to identify the vaccine (T50.A-, T50.B-, T50.Z-)
  - postinfectious G04.31
    ICD-10-CM Diagnosis Code G04.31
    Postinfectious acute necrotizing hemorrhagic encephalopathy
    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  - specified NEC G04.39
    ICD-10-CM Diagnosis Code G04.39
    Other acute necrotizing hemorrhagic encephalopathy
    2016 2017 2018 2019 2020 2021 2022 2023 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 2020 2021 2022 2023 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 2020 2021 2022 2023 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 2020 2021 2022 2023 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 2020 2021 2022 2023 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 2020 2021 2022 2023 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 2020 2021 2022 2023 Billable/Specific Code
- due to
  - drugs G92.8
    - see also Table of Drugs and Chemicals
    ICD-10-CM Diagnosis Code G92.8
    Other toxic encephalopathy
    2022 - New Code 2023 Billable/Specific Code
    Applicable To
    Toxic encephalitis
    Toxic metabolic encephalopathy
    Code First
    poisoning due to drug or toxin, if applicable, (T36-T65 with fifth or sixth character 1-4 or 6)
    Use Additional
    code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
- hepatic K76.82
  (without coma)
  ICD-10-CM Diagnosis Code K76.82
  Hepatic encephalopathy
  2023 - New Code Billable/Specific Code
  Applicable To
  Hepatic encephalopathy, NOS
  Hepatic encephalopathy without coma
  Hepatocerebral intoxication
  Portal-systemic encephalopathy
  Code Also
  underlying liver disease, such as:
  acute and subacute hepatic failure without coma (K72.00)
  alcoholic hepatic failure without coma (K70.40)
  chronic hepatic failure without coma (K72.10)
  hepatic failure with toxic liver disease without coma (K71.10)
  hepatic failure without coma (K72.90)
  icterus of newborn (P55-P59)
  postprocedural hepatic failure (K91.82)
  viral hepatitis without hepatic coma (B15.9, B16.1, B16.9, B17.10, B19.10, B19.20, B19.9)
  Type 1 Excludes
  acute and subacute hepatic failure with coma (K72.01)
  alcoholic hepatic failure with coma (K70.41)
  chronic hepatic failure with coma (K72.11)
  hepatic failure with coma (K72.91)
- hyperbilirubinemic, newborn P57.9
  ICD-10-CM Diagnosis Code P57.9
  Kernicterus, unspecified
  2016 2017 2018 2019 2020 2021 2022 2023 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 2020 2021 2022 2023 Billable/Specific Code Code on Newborn Record
- hypertensive I67.4
  ICD-10-CM Diagnosis Code I67.4
  Hypertensive encephalopathy
  2016 2017 2018 2019 2020 2021 2022 2023 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 2020 2021 2022 2023 Billable/Specific Code
  Type 1 Excludes
  diabetes with hypoglycemia (E08.649, E10.649, E11.649, E13.649)
- 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 2020 2021 2022 2023 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 2020 2021 2022 2023 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 2020 2021 2022 2023 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 2020 2021 2022 2023 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 2020 2021 2022 2023 Billable/Specific Code Code on Newborn Record
  - hyperinsulinism E16.1
    ICD-10-CM Diagnosis Code E16.1
    Other hypoglycemia
    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    Functional hyperinsulinism
    Functional nonhyperinsulinemic hypoglycemia
    Hyperinsulinism NOS
    Hyperplasia of pancreatic islet beta cells NOS
    Type 1 Excludes
    diabetes with hypoglycemia (E08.649, E10.649, E11.649, E13.649)
    hypoglycemia in infant of diabetic mother (P70.1)
    neonatal hypoglycemia (P70.4)
  - 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 2020 2021 2022 2023 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 2020 2021 2022 2023 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 2020 2021 2022 2023 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 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    Dementia paralytica
  - trauma (postconcussional) F07.81
    ICD-10-CM Diagnosis Code F07.81
    Postconcussional syndrome
    2016 2017 2018 2019 2020 2021 2022 2023 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-)
    - current injury - see Injury, intracranial
  - vaccination G04.02
    ICD-10-CM Diagnosis Code G04.02
    Postimmunization acute disseminated encephalitis, myelitis and encephalomyelitis
    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    Encephalitis, post immunization
    Encephalomyelitis, post immunization
    Use Additional
    code to identify the vaccine (T50.A-, T50.B-, T50.Z-)
- lead - see Poisoning, lead
- metabolic G93.41
  ICD-10-CM Diagnosis Code G93.41
  Metabolic encephalopathy
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  Applicable To
  Septic encephalopathy
  - drug induced G92.8
    ICD-10-CM Diagnosis Code G92.8
    Other toxic encephalopathy
    2022 - New Code 2023 Billable/Specific Code
    Applicable To
    Toxic encephalitis
    Toxic metabolic encephalopathy
    Code First
    poisoning due to drug or toxin, if applicable, (T36-T65 with fifth or sixth character 1-4 or 6)
    Use Additional
    code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
  - toxic G92.8
    ICD-10-CM Diagnosis Code G92.8
    Other toxic encephalopathy
    2022 - New Code 2023 Billable/Specific Code
    Applicable To
    Toxic encephalitis
    Toxic metabolic encephalopathy
    Code First
    poisoning due to drug or toxin, if applicable, (T36-T65 with fifth or sixth character 1-4 or 6)
    Use Additional
    code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
- 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 2020 2021 2022 2023 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 2020 2021 2022 2023 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 2020 2021 2022 2023 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 2020 2021 2022 2023 Billable/Specific Code
  Applicable To
  Niacin (-tryptophan) deficiency
  Nicotinamide deficiency
  Pellagra (alcoholic)
  Type 1 Excludes
  sequelae of niacin deficiency (E64.8)
- portal-systemic K76.82
  ICD-10-CM Diagnosis Code K76.82
  Hepatic encephalopathy
  2023 - New Code Billable/Specific Code
  Applicable To
  Hepatic encephalopathy, NOS
  Hepatic encephalopathy without coma
  Hepatocerebral intoxication
  Portal-systemic encephalopathy
  Code Also
  underlying liver disease, such as:
  acute and subacute hepatic failure without coma (K72.00)
  alcoholic hepatic failure without coma (K70.40)
  chronic hepatic failure without coma (K72.10)
  hepatic failure with toxic liver disease without coma (K71.10)
  hepatic failure without coma (K72.90)
  icterus of newborn (P55-P59)
  postprocedural hepatic failure (K91.82)
  viral hepatitis without hepatic coma (B15.9, B16.1, B16.9, B17.10, B19.10, B19.20, B19.9)
  Type 1 Excludes
  acute and subacute hepatic failure with coma (K72.01)
  alcoholic hepatic failure with coma (K70.41)
  chronic hepatic failure with coma (K72.11)
  hepatic failure with coma (K72.91)
- postcontusional F07.81
  ICD-10-CM Diagnosis Code F07.81
  Postconcussional syndrome
  2016 2017 2018 2019 2020 2021 2022 2023 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-)
  - current injury - see Injury, intracranial, diffuse
- posthypoglycemic E16.1
  (coma)
  ICD-10-CM Diagnosis Code E16.1
  Other hypoglycemia
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  Applicable To
  Functional hyperinsulinism
  Functional nonhyperinsulinemic hypoglycemia
  Hyperinsulinism NOS
  Hyperplasia of pancreatic islet beta cells NOS
  Type 1 Excludes
  diabetes with hypoglycemia (E08.649, E10.649, E11.649, E13.649)
  hypoglycemia in infant of diabetic mother (P70.1)
  neonatal hypoglycemia (P70.4)
- postradiation G93.89
  ICD-10-CM Diagnosis Code G93.89
  Other specified disorders of brain
  2016 2017 2018 2019 2020 2021 2022 2023 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 2020 2021 2022 2023 Billable/Specific Code
  Applicable To
  Septic encephalopathy
- specified NEC G93.49
  ICD-10-CM Diagnosis Code G93.49
  Other encephalopathy
  2016 2017 2018 2019 2020 2021 2022 2023 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 2020 2021 2022 2023 Billable/Specific Code
  Applicable To
  CJD
  Familial Creutzfeldt-Jakob disease
  Iatrogenic Creutzfeldt-Jakob disease
  Sporadic Creutzfeldt-Jakob disease
  Subacute spongiform encephalopathy (with dementia)
- toxic G92.9
  ICD-10-CM Diagnosis Code G92.9
  Unspecified toxic encephalopathy
  2022 - New Code 2023 Billable/Specific Code
  Code First
  poisoning due to drug or toxin, if applicable, (T36-T65 with fifth or sixth character 1-4 or 6)
  Use Additional
  code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
  - metabolic G92.8
    ICD-10-CM Diagnosis Code G92.8
    Other toxic encephalopathy
    2022 - New Code 2023 Billable/Specific Code
    Applicable To
    Toxic encephalitis
    Toxic metabolic encephalopathy
    Code First
    poisoning due to drug or toxin, if applicable, (T36-T65 with fifth or sixth character 1-4 or 6)
    Use Additional
    code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
- traumatic (postconcussional) F07.81
  ICD-10-CM Diagnosis Code F07.81
  Postconcussional syndrome
  2016 2017 2018 2019 2020 2021 2022 2023 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-)
  - current injury - see Injury, intracranial
- vitamin B deficiency NEC E53.9
  ICD-10-CM Diagnosis Code E53.9
  Vitamin B deficiency, unspecified
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  - vitamin B1 E51.2
    ICD-10-CM Diagnosis Code E51.2
    Wernicke's encephalopathy
    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- Wernicke's E51.2
  ICD-10-CM Diagnosis Code E51.2
  Wernicke's encephalopathy
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

Index Terms Starting With 'E' (Encephalopathy)

Encephalopathy (acute) G93.40ICD-10-CM Diagnosis Code G93.40Encephalopathy, unspecified2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

Encephalopathy, unspecified

Acute necrotizing hemorrhagic encephalopathy, unspecified

Postimmunization acute necrotizing hemorrhagic encephalopathy

Postinfectious acute necrotizing hemorrhagic encephalopathy

Other acute necrotizing hemorrhagic encephalopathy

Degeneration of nervous system due to alcohol

Cerebral atherosclerosis

Diffuse sclerosis of central nervous system

Congenital malformation of nervous system, unspecified

Other specified degenerative disorders of nervous system in diseases classified elsewhere

Central demyelination of corpus callosum

Other toxic encephalopathy

Hepatic encephalopathy

Kernicterus, unspecified

Kernicterus due to isoimmunization

Hypertensive encephalopathy

Hypoglycemia, unspecified

Hypoxic ischemic encephalopathy [HIE], unspecified

Mild hypoxic ischemic encephalopathy [HIE]

Moderate hypoxic ischemic encephalopathy [HIE]

Severe hypoxic ischemic encephalopathy [HIE]

Other specified brain damage due to birth injury

Other hypoglycemia

Vitamin deficiency, unspecified

Neoplasm of unspecified behavior of unspecified site

Other serum reaction due to other serum

General paresis

Postconcussional syndrome

Postimmunization acute disseminated encephalitis, myelitis and encephalomyelitis

Metabolic encephalopathy

Other toxic encephalopathy

Other toxic encephalopathy

Leigh's disease

Neonatal encephalopathy, unspecified

Neonatal encephalopathy in diseases classified elsewhere

Niacin deficiency [pellagra]

Hepatic encephalopathy

Postconcussional syndrome

Other hypoglycemia

Other specified disorders of brain

Metabolic encephalopathy

Other encephalopathy

Other Creutzfeldt-Jakob disease

Unspecified toxic encephalopathy

Other toxic encephalopathy

Postconcussional syndrome

Vitamin B deficiency, unspecified

Wernicke's encephalopathy

Wernicke's encephalopathy

Encephalopathy (acute) G93.40
ICD-10-CM Diagnosis Code G93.40
Encephalopathy, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code