2021 ICD-10-CM Diagnosis Code R41.81

Age-related cognitive decline

    2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
  • R41.81 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM R41.81 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of R41.81 - other international versions of ICD-10 R41.81 may differ.
ICD-10-CM Coding Rules
  • R41.81 is applicable to adult patients aged 15 - 124 years inclusive.
Applicable To
  • Senility NOS
The following code(s) above R41.81 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 R41.81:
  • R00-R99
    2021 ICD-10-CM Range R00-R99

    Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

    Note
    • 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)
    Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
  • R40-R46
    2021 ICD-10-CM Range R40-R46

    Symptoms and signs involving cognition, perception, emotional state and behavior

    Type 2 Excludes
    • symptoms and signs constituting part of a pattern of mental disorder (F01-F99)
    Symptoms and signs involving cognition, perception, emotional state and behavior
  • R41
    ICD-10-CM Diagnosis Code R41

    Other symptoms and signs involving cognitive functions and awareness

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • dissociative [conversion] disorders (F44.-)
    • mild cognitive impairment, so stated (G31.84)
    Other symptoms and signs involving cognitive functions and awareness
Approximate Synonyms
  • Senility
ICD-10-CM R41.81 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 884 Organic disturbances and intellectual disability

Convert R41.81 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
Code annotations containing back-references to R41.81:
  • Type 1 Excludes: F03
    , R54
    , R54
    , G31.84
    , G30
    , G31.1
    ICD-10-CM Diagnosis Code F03

    Unspecified dementia

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Presenile dementia NOS
    • Presenile psychosis NOS
    • Primary degenerative dementia NOS
    • Senile dementia NOS
    • Senile dementia depressed or paranoid type
    • Senile psychosis NOS
    Type 1 Excludes
    Type 2 Excludes
    • mild memory disturbance due to known physiological condition (F06.8)
    • senile dementia with delirium or acute confusional state (F05)
    ICD-10-CM Diagnosis Code R54

    Age-related physical debility

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
    Applicable To
    • Frailty
    • Old age
    • Senescence
    • Senile asthenia
    • Senile debility
    Type 1 Excludes
    ICD-10-CM Diagnosis Code R54

    Age-related physical debility

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
    Applicable To
    • Frailty
    • Old age
    • Senescence
    • Senile asthenia
    • Senile debility
    Type 1 Excludes
    ICD-10-CM Diagnosis Code G31.84

    Mild cognitive impairment, so stated

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Mild neurocognitive disorder
    Type 1 Excludes
    ICD-10-CM Diagnosis Code G30

    Alzheimer's disease

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Includes
    • Alzheimer's dementia senile and presenile forms
    Type 1 Excludes
    • senile degeneration of brain NEC (G31.1)
    • senile dementia NOS (F03)
    • senility NOS (R41.81)
    Use Additional
    • code to identify:
    • delirium, if applicable (F05)
    • dementia with behavioral disturbance (F02.81)
    • dementia without behavioral disturbance (F02.80)
    ICD-10-CM Diagnosis Code G31.1

    Senile degeneration of brain, not elsewhere classified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Type 1 Excludes

Diagnosis Index entries containing back-references to R41.81:
  • Decline (general) - see Debility
    • cognitive, age-associated R41.81
  • Frailty (frail) R54
    ICD-10-CM Diagnosis Code R54

    Age-related physical debility

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
    Applicable To
    • Frailty
    • Old age
    • Senescence
    • Senile asthenia
    • Senile debility
    Type 1 Excludes
    • mental R41.81
  • Senile, senility R41.81 - see also condition
  • Symptoms NEC R68.89
    ICD-10-CM Diagnosis Code R68.89

    Other general symptoms and signs

      2016 2017 2018 2019 2020 2021 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 Billable/Specific Code
        Applicable To
        • Unspecified neurocognitive disorder
        • senile cognitive decline R41.81
      • 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 Billable/Specific Code
        Applicable To
        • Unspecified neurocognitive disorder
        • senile cognitive decline R41.81

ICD-10-CM Codes Adjacent To R41.81
R40.2444 …… 24 hours or more after hospital admission
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
R41.2 Retrograde amnesia
R41.3 Other 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
R41.842 Visuospatial deficit
R41.843 Psychomotor 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

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.