G93.9
BillableDisorder of brain, unspecified
Disorder of brain, unspecified
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
Related Codes(9)
G93.0Cerebral cysts
G93.1Anoxic brain damage, not elsewhere classified
G93.2Benign intracranial hypertension
G93.3Postviral and related fatigue syndromes
G93.4Other and unspecified encephalopathy
G93.5Compression of brain
G93.6Cerebral edema
G93.7Reye's syndrome
G93.8Other specified disorders of brain
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(127)
SNOMED CT
- Disorder of brain81308009
- Encephalopathy81308009
- Brain stem disorder95640005
- Disorder of brain stem95640005
- Disorder of midbrain95641009
- Midbrain disorder95641009
- Disease of cerebral cortex128128003
- Disorder of cerebral cortex128128003
- Non-psychotic mental disorder after brain damage192069009
- Non-psychotic psychological disorder after brain damage192069009
- Specific nonpsychotic mental disorders following organic brain damage192069009
- Organic memory impairment192072002
- Cerebellar disorder223176004
- Language disorder associated with right hemisphere damage229671002
- Disruptive behavior248044002
- Disruptive behaviour248044002
- Vocalisation278288005
- Vocalization278288005
- Lesion of brain301766008
- Disruptive vocalisation699303006
- Disruptive vocalization699303006
- Disruptive vocalization due to brain disease699303006
- Vocally disruptive behavior699303006
- Vocally disruptive behaviour699303006
- Childhood myocerebrohepatopathy spectrum702366001
- Aphasia due to brain damage711443006
- Lesion of posterior fossa of cranial cavity723130007
- Posterior fossa lesion723130007
- Brainstem lesion762355002
- Lesion of brainstem762355002
- Cerebellar-facial-dental syndrome1237475006
- Cerebellofaciodental syndrome1237475006
- Dystonia due to focal brain lesion1260339004
- Disorder of brain due to and following radiation therapy1339013005
- Disorder of brain due to and following radiotherapy1339013005
- Memory disorder co-occurrent and due to organic brain damage140621000119106
UMLS
- BRAIN DISC0006111
- Brain DiseaseC0006111
- Brain DiseasesC0006111
- Brain DisorderC0006111
- Brain DisordersC0006111
- Brain disorder NOSC0006111
- CNS DIS INTRACRANIALC0006111
- CNS Disorder, IntracranialC0006111
- CNS Disorders, IntracranialC0006111
- CNS INTRACRANIAL DISC0006111
- Central Nervous System Disorders, IntracranialC0006111
- Central Nervous System Intracranial DisordersC0006111
- Disorder of brainC0006111
- Disorder of brain (disorder)C0006111
- Disorder of brain, unspecifiedC0006111
- ENCEPHALON DISC0006111
- Encephalon DiseaseC0006111
- Encephalon DiseasesC0006111
- INTRACRANIAL CNS DISC0006111
- Intracranial CNS DisorderC0006111
- Intracranial CNS DisordersC0006111
- Intracranial Central Nervous System DisordersC0006111
- brain conditionC0006111
- brain conditionsC0006111
- brain conditions (non-specific)C0006111
- brain diseaseC0006111
- brain diseasesC0006111
- brain disorderC0006111
- brain disordersC0006111
- brains conditionsC0006111
- disease of brainC0006111
Clinical Terms
- Brain Disorder
- Organic memory impairment
- Midbrain disorder
- Disorder of brain due to and following radiotherapy
- Encephalopathy
- Central Nervous System Intracranial Disorders
- Vocalization
- disease of brain
- Language disorder associated with right hemisphere damage
- Vocally disruptive behaviour
- Disorder of brain (disorder)
- BRAIN DIS
- Cerebellofaciodental syndrome
- Childhood myocerebrohepatopathy spectrum
- Central Nervous System Disorders, Intracranial
- Intracranial Central Nervous System Disorders
- Cerebellar disorder
- CNS Disorder, Intracranial
- CNS INTRACRANIAL DIS
- brain disease
- Encephalon Diseases
- Encephalon Disease
- brain diseases
- Non-psychotic psychological disorder after brain damage
- Posterior fossa lesion
- brain conditions
- Brain disorder NOS
- Memory disorder co-occurrent and due to organic brain damage
- Vocally disruptive behavior
- Disorder of brain due to and following radiation therapy
- Lesion of posterior fossa of cranial cavity
- Disruptive behavior
- brains conditions
- Disruptive vocalisation
- Disruptive behaviour
- Aphasia due to brain damage
- Brain Disorders
- CNS DIS INTRACRANIAL
- Specific nonpsychotic mental disorders following organic brain damage
- Vocalisation
- Intracranial CNS Disorder
- Disease of cerebral cortex
- Disorder of brain stem
- brain condition
- INTRACRANIAL CNS DIS
- Intracranial CNS Disorders
- Disorder of cerebral cortex
- Brain stem disorder
- CNS Disorders, Intracranial
- Disorder of midbrain
- ENCEPHALON DIS
- brain conditions (non-specific)
- Lesion of brain
- Brainstem lesion
- Cerebellar-facial-dental syndrome
- Non-psychotic mental disorder after brain damage
- Disruptive vocalization due to brain disease
- Disruptive vocalization
- Dystonia due to focal brain lesion
- Lesion of brainstem
Frequently Asked Questions
What is the ICD-10 code for disorder of brain, unspecified?
The ICD-10-CM code for disorder of brain, unspecified is G93.9. The full clinical description is "Disorder of brain, unspecified". G93.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code G93.9 mean?
ICD-10-CM code G93.9 represents “Disorder of brain, unspecified”. It is classified under Chapter 6: Diseases of the Nervous System and is a billable/specific code that can be used on a claim.
Is G93.9 a billable code?
Yes, G93.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is G93.9 in?
G93.9 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What SNOMED CT codes does G93.9 map to?
G93.9 maps to 20 SNOMED CT concepts: 711443006, 95640005, 762355002, 223176004, 1237475006, and 15 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for G93.9?
G93.9 is linked to 1 UMLS Concept Unique Identifier: C0006111. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does G93.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like disorder of brain, unspecified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of G93.9?
G93.9 maps to the ICD-11 code: 8E47 (Encephalopathy, not elsewhere classified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.