G31.1
BillableSenile degeneration of brain, not elsewhere classified
Senile degeneration of brain, not elsewhere classified
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
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
- •Reye's syndromeG93.7
Use Additional Code
Additional codes that should follow this code
- •code, if applicable, for codes , , to identify:G31.0-G31.83, G31.85-G31.9
- •dementia with anxiety, A4, B4, C4)F02.84, F02, F02, F02
- •dementia with behavioral disturbance, A1-, B1-, C1-)F02.81, F02, F02, F02
- •dementia with mood disturbance, A3, B3, C3)F02.83, F02, F02, F02
- •dementia with psychotic disturbance, A2, B2, C2)F02.82, F02, F02, F02
- •dementia without behavioral disturbance, A0, B0, C0)F02.80, F02, F02, F02
- •mild neurocognitive disorder due to known physiological conditionF06.7
Related Codes(4)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(38)
SNOMED CT
- Age-related degeneration of brain45864009
- Senile degeneration of brain45864009
- Degenerative brain disorder52522001
- Disorder of brain81308009
- Encephalopathy81308009
- Cerebellar degeneration95646004
- Secondary cerebellar degeneration230241000
- Frontotemporal degeneration230273006
- Lobar atrophy230273006
- Cerebral atrophy278849000
- Frontal lobe degeneration278855005
- Cerebral degeneration presenting primarily with dementia279982005
- Lesion of brain301766008
- Cerebral degeneration418143002
- Chorea due to heredodegenerative disorder722966004
- Autonomic nervous system disorder co-occurrent and due to neurodegenerative disorder724813004
- Autonomic nervous system disorder with neurodegenerative disorder724813004
- Epilepsy co-occurrent and due to degenerative brain disorder724988000
- Epilepsy with degenerative brain disorder724988000
Clinical Terms
- Encephalopathy
- Cerebral degeneration presenting primarily with dementia
- Autonomic nervous system disorder co-occurrent and due to neurodegenerative disorder
- Frontal lobe degeneration
- Lobar atrophy
- Cerebellar degeneration
- Frontotemporal degeneration
- Age-related degeneration of brain
- Autonomic nervous system disorder with neurodegenerative disorder
- Degenerative brain disorder
- Cerebral degeneration
- Epilepsy co-occurrent and due to degenerative brain disorder
- Disorder of brain
- Epilepsy with degenerative brain disorder
- Lesion of brain
- Cerebral atrophy
- Secondary cerebellar degeneration
- Chorea due to heredodegenerative disorder
Frequently Asked Questions
What is the ICD-10 code for senile degeneration of brain, not elsewhere classified?
The ICD-10-CM code for senile degeneration of brain, not elsewhere classified is G31.1. The full clinical description is "Senile degeneration of brain, not elsewhere classified". G31.1 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code G31.1 mean?
ICD-10-CM code G31.1 represents “Senile degeneration of brain, not elsewhere classified”. 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 G31.1 a billable code?
Yes, G31.1 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is G31.1 in?
G31.1 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What codes cannot be used with G31.1?
G31.1 has Excludes1 notes indicating codes that cannot be used together with it, including: Alzheimer's disease (G30.-); senility NOS (R41.81).
Are additional codes required with G31.1?
Yes, when using G31.1, also report: code, if applicable, for codes G31.0-G31.83, G31.85-G31.9, to identify:; dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4); dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-); dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3); dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2); dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0); mild neurocognitive disorder due to known physiological condition (F06.7-).
What SNOMED CT codes does G31.1 map to?
G31.1 maps to 14 SNOMED CT concepts: 45864009, 724813004, 95646004, 278849000, 418143002, and 9 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for G31.1?
G31.1 is linked to 1 UMLS Concept Unique Identifier: C0494465. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does G31.1 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like senile degeneration of brain, not elsewhere classified 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 G31.1?
G31.1 maps to the ICD-11 code: MB21.0 (Age-associated cognitive decline).
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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.