2024 ICD-10-CM Diagnosis Code G31.1

Senile degeneration of brain, not elsewhere classified

ICD-10-CM Code:
G31.1
ICD-10 Code for:
Senile degeneration of brain, not elsewhere classified
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Diseases of the nervous system
    (G00–G99)
    • Other degenerative diseases of the nervous system
      (G30-G32)
      • Other degenerative diseases of nervous system, not elsewhere classified
        (G31)

G31.1 is a billable diagnosis code used to specify a medical diagnosis of senile degeneration of brain, not elsewhere classified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Autonomic nervous system disorder co-occurrent and due to neurodegenerative disorder
  • Cerebellar degeneration
  • Cerebral atrophy
  • Cerebral degeneration
  • Cerebral degeneration presenting primarily with dementia
  • Chorea due to heredodegenerative disorder
  • Degenerative brain disorder
  • Disorder of brain
  • Epilepsy co-occurrent and due to degenerative brain disorder
  • Frontal lobe degeneration
  • Frontotemporal degeneration
  • Lesion of brain
  • Secondary cerebellar degeneration
  • Senile degeneration of brain

Clinical Classification

Clinical Information

  • CDR1 Gene|CDR1|CDR1|Cerebellar Degeneration-Related Protein-1 (34kD) Gene

    this gene plays a major role in antigens that are specifically expressed in neuronal cells.
  • CDR1 wt Allele|CDR|CDR Gene|CDR1|CDR34|CDR34 Gene|CDR62A|CDR62A Gene|Cerebellar Degeneration-Related Autoantigen 1 Gene|Cerebellar Degeneration-Related Protein (34kD) Gene|Cerebellar Degeneration-Related Protein-1 (34kD) wt Allele|Cerebellar-Degeneration-Related Antigen 1 Gene

    human cdr1 wild-type allele is located within xq27.1-q27.2 and is approximately 1 kb in length. this allele, which encodes cerebellar degeneration-related antigen 1 protein, is involved in immune reactions and neuronal antigen regulation.
  • Cerebellar Degeneration

    degeneration of the cerebellum. it may be an inherited condition, a paraneoplastic syndrome, or secondary to autoimmune disorders.
  • Cerebellar-Degeneration-Related Antigen 1|CDR|CDR1|CDR1 Protein|CDR34|CDR62A|Cerebellar Degeneration-Related Autoantigen 1|Cerebellar Degeneration-Related Autoantigen, 34-kD|Cerebellar Degeneration-Related Protein (34kD)|Cerebellar Degeneration-Related Protein 1|Cerebellar Degeneration-Related Protein 1, 34kDa|Cerebellar Degeneration-Related Protein-1 (34kD)

    cerebellar degeneration-related antigen 1 (262 aa, ~31 kda) is encoded by the human cdr1 gene. this protein is involved in autoimmune diseases.
  • Paraneoplastic Cerebellar Degeneration

    a rare, immune-mediated disorder characterized by cerebellar degeneration due to the presence of an often undetected malignancy (usually carcinoma or lymphoma) in an anatomic site other than the cerebellum. signs and symptoms include progressive ataxia, dysarthria, and nystagmus.
  • Spinocerebellar Ataxia|Spinocerebellar Degeneration

    an inherited disorder characterized by degeneration of the spinal cord and the cerebellum. symptoms may appear at any age and include progressive loss of coordination of gait, hands, speech, and eye movements.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • Alzheimer's disease G30
  • senility NOS R41.81

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert G31.1 to ICD-9-CM

  • ICD-9-CM Code: 331.2 - Senile degenerat brain

Patient Education


Dementia

What is dementia?

Dementia is a loss of mental functions that is severe enough to affect your daily life and activities. These functions include:

  • Memory
  • Language skills
  • Visual perception (your ability to make sense of what you see)
  • Problem solving
  • Trouble with everyday tasks
  • The ability to focus and pay attention

It is normal to become a bit more forgetful as you age. But dementia is not a normal part of aging. It is a serious disorder which interferes with your daily life.

What are the types of dementia?

The most common types of dementia are known as neurodegenerative disorders. These are diseases in which the cells of the brain stop working or die. They include:

  • Alzheimer's disease, which is the most common form of dementia among older people. People with Alzheimer's have plaques and tangles in their brain. These are abnormal buildups of different proteins. Beta-amyloid protein clumps up and forms plaques in between your brain cells. Tau protein builds up and forms tangles inside the nerve cells of your brain. There is also a loss of connection between nerve cells in the brain.
  • Lewy body dementia, which causes movement symptoms along with dementia. Lewy bodies are abnormal deposits of a protein in the brain.
  • Frontotemporal disorders, which cause changes to certain parts of the brain:
    • Changes in the frontal lobe lead to behavioral symptoms
    • Changes in the temporal lobe lead to language and emotional disorders
  • Vascular dementia, which involves changes to the brain's blood supply. It is often caused by a stroke or atherosclerosis (hardening of the arteries) in the brain.
  • Mixed dementia, which is a combination of two or more types of dementia. For example, some people have both Alzheimer's disease and vascular dementia.

Other conditions can cause dementia or dementia-like symptoms, including:

  • Creutzfeldt-Jakob disease, a rare brain disorder
  • Huntington's disease, an inherited, progressive brain disease
  • Chronic traumatic encephalopathy (CTE), caused by repeated traumatic brain injury
  • HIV-associated dementia (HAD)

Who is at risk for dementia?

Certain factors can raise your risk for developing dementia, including:

  • Aging. This is the biggest risk factor for dementia.
  • Smoking
  • Uncontrolled diabetes
  • High blood pressure
  • Drinking too much alcohol
  • Having close family members who have dementia

What are the symptoms of dementia?

The symptoms of dementia can vary, depending on which parts of the brain are affected. Often, forgetfulness is the first symptom. Dementia also causes problems with the ability to think, problem solve, and reason. For example, people with dementia may:

  • Get lost in a familiar neighborhood
  • Use unusual words to refer to familiar objects
  • Forget the name of a close family member or friend
  • Forget old memories
  • Need help doing tasks that they used to do by themselves

Some people with dementia cannot control their emotions and their personalities may change. They may become apathetic, meaning that they are no longer interested in normal daily activities or events. They may lose their inhibitions and stop caring about other peoples' feelings.

Certain types of dementia can also cause problems with balance and movement.

The stages of dementia range from mild to severe. In the mildest stage, it is just beginning to affect a person's functioning. In the most severe stage, the person is completely dependent on others for care.

How is dementia diagnosed?

Your health care provider may use many tools to make a diagnosis:

  • A medical history, which includes asking about your symptoms
  • A physical exam
  • Tests of your thinking, memory, and language abilities
  • Other tests, such as blood tests, genetic tests, and brain scans
  • A mental health evaluation to see whether a mental disorder is contributing to your symptoms

What are the treatments for dementia?

There is no cure for most types of dementia, including Alzheimer's disease and Lewy body dementia. Treatments may help to maintain mental function longer, manage behavioral symptoms, and slow down the symptoms of disease. They may include:

  • Medicines may temporarily improve memory and thinking or slow down their decline. They only work in some people. Other medicines can treat symptoms such as anxiety, depression, sleep problems, and muscle stiffness. Some of these medicines can cause strong side effects in people with dementia. It is important to talk to your health care provider about which medicines will be safe for you.
  • Occupational therapy to help find ways to more easily do everyday activities
  • Speech therapy to help with swallowing difficulties and trouble speaking loudly and clearly
  • Mental health counseling to help people with dementia and their families learn how to manage difficult emotions and behaviors. It can also help them plan for the future.
  • Music or art therapy to reduce anxiety and improve well-being

Can dementia be prevented?

Researchers have not found a proven way to prevent dementia. Living a healthy lifestyle might influence some of your risk factors for dementia.


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.