G31.84 - Mild cognitive impairment of uncertain or unknown etiology
|Short Description:||Mild cognitive impairment of uncertain or unknown etiology|
|Long Description:||Mild cognitive impairment of uncertain or unknown etiology|
|Status:||Valid for Submission|
G31.84 is a billable ICD-10 code used to specify a medical diagnosis of mild cognitive impairment of uncertain or unknown etiology. The code is valid during the fiscal year 2023 from October 01, 2022 through September 30, 2023 for the submission of HIPAA-covered transactions.
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Amnestic mild cognitive disorder
- Mild cognitive disorder
Revised 2023 ICD-10 Code
G31.84 was revised for the FY 2023, effective October 1, 2022.
This code was replaced in the 2023 ICD-10 code set with the code(s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2022. This code was replaced for the FY 2023 (October 1, 2022 - September 30, 2023).
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to this diagnosis code:
Inclusion TermsInclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Mild cognitive disorder NOS
- Mild neurocognitive disorder of uncertain or unknown etiology
Use Additional CodeUse Additional Code
The “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 to identify presence of:
- alcohol abuse and dependence F10
- exposure to environmental tobacco smoke Z77.22
- history of tobacco dependence Z87.891
- hypertension I10 I16
- occupational exposure to environmental tobacco smoke Z57.31
- tobacco dependence F17
- tobacco use Z72.0
Type 1 ExcludesType 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.
- age related cognitive decline R41.81
- altered mental status R41.82
- cerebral degeneration G31.9
- cerebrovascular diseases I60 I69
- change in mental status R41.82
- cognitive deficits following sequelae of cerebral hemorrhage or infarction I69.01 I69.11 I69.21 I69.31 I69.81 I69.91
- cognitive impairment due to intracranial or head injury S06
- dementia F01 F02 F03
- mild neurocognitive disorder due to a known physiological condition F06.7
- neurologic neglect syndrome R41.4
- personality change, nonpsychotic F68.8
Index to Diseases and Injuries References
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for this diagnosis code are found in the injuries and diseases index:
- - Disorder (of) - See Also: Disease;
- - mild neurocognitive - G31.84
- - neurocognitive - R41.9
- - mild (of uncertain or unknown etiology) - See Also: Disorder, mild neurocognitive; - G31.84
- - Impaired, impairment (function)
- - cognitive, mild, of uncertain or unknown etiology - G31.84
- - mild cognitive - G31.84
- - of uncertain or unknown etiology - G31.84
Convert to ICD-9 Code
|Source ICD-10 Code||Target ICD-9 Code|
|G31.84||331.83 - Mild cognitive impairemt|
Mild Cognitive Impairment
Some forgetfulness can be a normal part of aging. However, some people have more memory problems than other people their age. This condition is called mild cognitive impairment, or MCI. People with MCI can take care of themselves and do their normal activities.
MCI memory problems may include:
- Losing things often
- Forgetting to go to events and appointments
- Having more trouble coming up with words than other people of the same age
Memory problems can also have other causes, including certain medicines and diseases that affect the blood vessels that supply the brain. Some of the problems brought on by these conditions can be managed or reversed.
Your health care provider can do thinking, memory, and language tests to see if you have MCI. You may also need to see a specialist for more tests. Because MCI may be an early sign of Alzheimer's disease, it's really important to see your health care provider every 6 to 12 months.
At this time, there is no proven drug treatment for MCI. Your health care provider can check to see if you have any changes in your memory or thinking skills over time.
NIH: National Institute on Aging
[Learn More in MedlinePlus]
What is Mild Cognitive Impairment?Some people with memory problems have a condition called mild cognitive impairment, or MCI. MCI has several types.
[Learn More in MedlinePlus]
- FY 2023 - Code Updated, effective from 10/1/2022 through 9/30/2023
- New Description: Mild cognitive impairment of uncertain or unknown etiology
- Previous Description:
- 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 (First year ICD-10-CM implemented into the HIPAA code set)