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ICD-10-CM Codes
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R00-R99
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R40-R46
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R41-
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2023 ICD-10-CM Diagnosis Code R41.82
2023 ICD-10-CM Diagnosis Code R41.82
Altered mental status, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- R41.82 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM R41.82 became effective on October 1, 2022.
- This is the American ICD-10-CM version of R41.82 - other international versions of ICD-10 R41.82 may differ.
Applicable To- Change in mental status NOS
Type 1 ExcludesType 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as R41.82. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
The following code(s) above
R41.82 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
R41.82:
- R00-R99
2023 ICD-10-CM Range R00-R99
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedNote- This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
- Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
- The conditions and signs or symptoms included in categories R00-R94 consist of:
- (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
- (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
- (c) provisional diagnosis in a patient who failed to return for further investigation or care;
- (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
- (e) cases in which a more precise diagnosis was not available for any other reason;
- (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.
Type 2 Excludes- abnormal findings on antenatal screening of mother (O28.-)
- certain conditions originating in the perinatal period (P04-P96)
- signs and symptoms classified in the body system chapters
- signs and symptoms of breast (N63, N64.5)
- R40-R46
2023 ICD-10-CM Range R40-R46
Symptoms and signs involving cognition, perception, emotional state and behaviorType 2 Excludes- symptoms and signs constituting part of a pattern of mental disorder (F01-F99)
- R41
ICD-10-CM Diagnosis Code R41
Other symptoms and signs involving cognitive functions and awareness
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Type 1 Excludes- dissociative [conversion] disorders (F44.-)
- mild cognitive impairment, so stated (G31.84)
- 947 Signs and symptoms with mcc
- 948 Signs and symptoms without mcc
Convert R41.82 to ICD-9-CM
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
Code annotations containing back-references to R41.82:
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Type 1 Excludes: G31.84, G31.84, F06.7, F06.7
ICD-10-CM Diagnosis Code G31.84
Mild cognitive impairment of uncertain or unknown etiology
2016 2017 2018 2019 2020 2021 2022 2023 - Revised Code Billable/Specific Code
Applicable To- Mild cognitive disorder NOS
- Mild neurocognitive disorder of uncertain or unknown etiology
Type 1 Excludes- 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)
Use Additional- 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)
ICD-10-CM Diagnosis Code G31.84
Mild cognitive impairment of uncertain or unknown etiology
2016 2017 2018 2019 2020 2021 2022 2023 - Revised Code Billable/Specific Code
Applicable To- Mild cognitive disorder NOS
- Mild neurocognitive disorder of uncertain or unknown etiology
Type 1 Excludes- 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)
Use Additional- 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)
ICD-10-CM Diagnosis Code F06.7
Mild neurocognitive disorder due to known physiological condition
2023 - New Code Non-Billable/Non-Specific Code
Applicable To- Mild neurocognitive impairment due to a known physiological condition
Code First- the underlying physiological condition, such as:
- Alzheimer's disease (G30.-)
- frontotemporal neurocognitive disorder (G31.09)
- human immunodeficiency virus [HIV] disease (B20)
- Huntington's disease (G10)
- Neurocognitive disorder with Lewy bodies (G31.83)
- Parkinson's disease (G20)
- systemic lupus erythematosus (M32.-)
- traumatic brain injury (S06.-)
- vitamin B deficiency (E53-)
ICD-10-CM Diagnosis Code F06.7
Mild neurocognitive disorder due to known physiological condition
2023 - New Code Non-Billable/Non-Specific Code
Applicable To- Mild neurocognitive impairment due to a known physiological condition
Code First- the underlying physiological condition, such as:
- Alzheimer's disease (G30.-)
- frontotemporal neurocognitive disorder (G31.09)
- human immunodeficiency virus [HIV] disease (B20)
- Huntington's disease (G10)
- Neurocognitive disorder with Lewy bodies (G31.83)
- Parkinson's disease (G20)
- systemic lupus erythematosus (M32.-)
- traumatic brain injury (S06.-)
- vitamin B deficiency (E53-)
- Alteration (of)
- Change(s) (in) (of) - see also Removal
- Symptoms NEC R68.89
ICD-10-CM Diagnosis Code R68.89
Other general symptoms and signs
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- involving
- awareness R41.9
ICD-10-CM Diagnosis Code R41.9
Unspecified symptoms and signs involving cognitive functions and awareness
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Applicable To- Unspecified neurocognitive disorder
- altered mental status R41.82
- cognitive functions R41.9
ICD-10-CM Diagnosis Code R41.9
Unspecified symptoms and signs involving cognitive functions and awareness
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Applicable To- Unspecified neurocognitive disorder
- altered mental status R41.82
ICD-10-CM Codes Adjacent To R41.82
R40.3 Persistent vegetative state
R40.4 Transient alteration of awareness
R41 Other symptoms and signs involving cognitive functions and awareness
R41.0 Disorientation, unspecified
R41.1 Anterograde amnesia
R41.4 Neurologic neglect syndrome
R41.8 Other symptoms and signs involving cognitive functions and awareness
R41.81 Age-related cognitive decline
R41.82
Altered mental status, unspecified
R41.83 Borderline intellectual functioning
R41.84 Other specified cognitive deficit
R41.840 Attention and concentration deficit
R41.841 Cognitive communication deficit
R41.844 Frontal lobe and executive function deficit
R41.89 Other symptoms and signs involving cognitive functions and awareness
R41.9 Unspecified symptoms and signs involving cognitive functions and awareness
R42 Dizziness and giddiness
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
