2024 ICD-10-CM Diagnosis Code G31
Other degenerative diseases of nervous system, not elsewhere classified
- ICD-10-CM Code:
- G31
- ICD-10 Code for:
- Oth degenerative diseases of nervous system, NEC
- Is Billable?
- Not Valid for Submission
- Code Navigator:
G31 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of other degenerative diseases of nervous system, not elsewhere classified. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.
Specific Coding Applicable to Oth degenerative diseases of nervous system, NEC
Non-specific codes like G31 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for oth degenerative diseases of nervous system, nec:
G31.0 for Frontotemporal dementia - NON-BILLABLE CODE
Use G31.01 for Pick's disease - BILLABLE CODE
Use G31.09 for Other frontotemporal neurocognitive disorder - BILLABLE CODE
Use G31.1 for Senile degeneration of brain, not elsewhere classified - BILLABLE CODE
Use G31.2 for Degeneration of nervous system due to alcohol - BILLABLE CODE
G31.8 for Other specified degenerative diseases of nervous system - NON-BILLABLE CODE
Use G31.80 for Leukodystrophy, unspecified - BILLABLE CODE
Use G31.81 for Alpers disease - BILLABLE CODE
Use G31.82 for Leigh's disease - BILLABLE CODE
Use G31.83 for Neurocognitive disorder with Lewy bodies - BILLABLE CODE
Use G31.84 for Mild cognitive impairment of uncertain or unknown etiology - BILLABLE CODE
Use G31.85 for Corticobasal degeneration - BILLABLE CODE
Use G31.86 for Alexander disease - BILLABLE CODE
Use G31.89 for Other specified degenerative diseases of nervous system - BILLABLE CODE
Use G31.9 for Degenerative disease of nervous system, unspecified - BILLABLE CODE
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.
Use Additional Code
Use Additional CodeThe “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
- code, if applicable, for codes G31.0 G31.83 G31.85 G31.9
- 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
Type 2 Excludes
Type 2 ExcludesA type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- Reye's syndrome G93.7
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.