ICD-10-CM Code G31
Other degenerative diseases of nervous system, not elsewhere classified
Non-Billable Code
Non-Billable means the code is not sufficient justification for admission to an acute care hospital when used a principal diagnosis. Use a child code to capture more detail.ICD Code G31 is a non-billable code. To code a diagnosis of this type, you must use one of the five child codes of G31 that describes the diagnosis 'oth degenerative diseases of nervous system, nec' in more detail.
- G31 Other degenerative diseases of nervous system, not elsewhere classified NON-BILLABLE
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- G31.01 Pick's disease BILLABLE
- G31.09 Other frontotemporal dementia BILLABLE
- BILLABLE G31.1 Senile degeneration of brain, not elsewhere classified
- BILLABLE G31.2 Degeneration of nervous system due to alcohol
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- G31.81 Alpers disease BILLABLE
- G31.82 Leigh's disease BILLABLE
- G31.83 Dementia with Lewy bodies BILLABLE
- G31.84 Mild cognitive impairment, so stated BILLABLE
- G31.85 Corticobasal degeneration BILLABLE
- G31.89 Other specified degenerative diseases of nervous system BILLABLE
- BILLABLE G31.9 Degenerative disease of nervous system, unspecified
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The ICD code G31 is used to code Neurodegeneration
Neurodegeneration is the umbrella term for the progressive loss of structure or function of neurons, including death of neurons. Many neurodegenerative diseases including amyotrophic lateral sclerosis, Parkinson's, Alzheimer's, and Huntington's occur as a result of neurodegenerative processes. Such diseases are incurable, resulting in progressive degeneration and/or death of neuron cells. As research progresses, many similarities appear that relate these diseases to one another on a sub-cellular level. Discovering these similarities offers hope for therapeutic advances that could ameliorate many diseases simultaneously. There are many parallels between different neurodegenerative disorders including atypical protein assemblies as well as induced cell death. Neurodegeneration can be found in many different levels of neuronal circuitry ranging from molecular to systemic.
| Specialty: | Neurology |
| MeSH Code: | D019636 |
Coding Notes for G31 Info for medical coders on how to properly use this ICD-10 code
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Additional Code Note:
Use Additional Code
Use Additional Code note means a second code must be used in conjunction with this code. Codes with this note are Etiology codes and must be followed by a Manifestation code or codes. - Code to identify:
- Dementia with behavioral disturbance See code F02.81
- Dementia without behavioral disturbance See code F02.80
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Code Type-2 Excludes:
Type-2 Excludes
Type-2 Excludes means the excluded conditions are different, although they may appear similar. A patient may have both conditions, but one does not include the other. Excludes 2 means "not coded here." - Reye's syndrome - instead, use code G93.7
ICD-10-CM Alphabetical Index References for 'G31 - Other degenerative diseases of nervous system, not elsewhere classified'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code G31. Click on any term below to browse the alphabetical index.