2019 ICD-10-CM Diagnosis Code R41.0

Disorientation, unspecified

    2016 2017 2018 2019 Billable/Specific Code
  • R41.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM R41.0 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of R41.0 - other international versions of ICD-10 R41.0 may differ.
Applicable To
  • Confusion NOS
  • Delirium NOS
The following code(s) above R41.0 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 R41.0:
  • R00-R99
    2019 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
    2019 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 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
  • Acute non-psychotic brain syndrome
  • Acute nonpsychotic brain syndrome
  • Brain syndrome, nonpsychotic
  • Clouded consciousness
  • Confusion
  • Delirium
  • Delirium, subacute
  • Presenile dementia with delirium
  • Senile dementia with delirium
  • Subacute delirium
  • Wooziness
Clinical Information
  • A disorder characterized by a lack of clear and orderly thought and behavior.
  • A disorder characterized by confusion; inattentiveness; disorientation; illusions; hallucinations; agitation; and in some instances autonomic nervous system overactivity. It may result from toxic/metabolic conditions or structural brain lesions. (from Adams et al., Principles of Neurology, 6th ed, pp411-2)
  • A disorder characterized by the acute and sudden development of confusion, illusions, movement changes, inattentiveness, agitation, and hallucinations. Usually, it is a reversible condition.
  • A mental state characterized by a lack of clear and orderly thought and behavior.
  • A mental state characterized by bewilderment, emotional disturbance, lack of clear thinking, and perceptual disorientation.
  • A mental state in which a person is confused, disoriented, and not able to think or remember clearly. The person may also be agitated and have hallucinations, and extreme excitement.
  • A mental state in which one is not thinking clearly.
  • A mental state marked by confusion about time, place, or who one is.
  • A usually reversible condition characterized by the acute and sudden development of confusion, illusions, movement changes, inattentiveness, agitation, and hallucinations. Causes include drug abuse, poisoning, infectious processes, and fluid and electrolyte imbalance.
  • Delirium is a condition which causes a confused mental state and changes in behavior. Besides falling in and out of consciousness, there may be problems with
    • attention and awareness
    • thinking and memory
    • emotion
    • muscle control
    • sleeping and waking
    causes of delirium include medications, poisoning, serious illnesses or infections, and severe pain. It can also be part of some mental illnesses or dementia. Delirium and dementia have similar symptoms, so it can be hard to tell them apart. They can also occur together.delirium tremens is a serious type of alcohol withdrawal syndrome. It usually happens to people who stop drinking after years of alcohol abuse.people with delirium often, though not always, make a full recovery after their underlying illness is treated.
  • Disorder characterized by confusion, inattentiveness, disorientation, illusions, hallucinations, agitation and in some instances autonomic nervous system overactivity; may result from toxic or metabolic conditions or structural brain lesions; condition may also be acute and reversible.
  • State of being disoriented (mixed-up)
ICD-10-CM R41.0 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 947 Signs and symptoms with mcc
  • 948 Signs and symptoms without mcc

Convert R41.0 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
Code annotations containing back-references to R41.0:
  • Type 1 Excludes: R41.82
    , F05
    ICD-10-CM Diagnosis Code R41.82

    Altered mental status, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Change in mental status NOS
    Type 1 Excludes
    • altered level of consciousness (R40.-)
    • altered mental status due to known condition - code to condition
    • delirium NOS (R41.0)
    ICD-10-CM Diagnosis Code F05

    Delirium due to known physiological condition

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Acute or subacute brain syndrome
    • Acute or subacute confusional state (nonalcoholic)
    • Acute or subacute infective psychosis
    • Acute or subacute organic reaction
    • Acute or subacute psycho-organic syndrome
    • Delirium of mixed etiology
    • Delirium superimposed on dementia
    • Sundowning
    Code First
    • the underlying physiological condition
    Type 1 Excludes
    Type 2 Excludes

Diagnosis Index entries containing back-references to R41.0:
  • Confusion, confused R41.0
  • Delirium, delirious (acute or subacute) (not alcohol- or drug-induced) (with dementia) R41.0
  • Disorientation R41.0
  • Symptoms NEC R68.89
    ICD-10-CM Diagnosis Code R68.89

    Other general symptoms and signs

      2016 2017 2018 2019 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 Billable/Specific Code
        Applicable To
        • Unspecified neurocognitive disorder
        • disorientation R41.0
      • cognitive functions R41.9
        ICD-10-CM Diagnosis Code R41.9

        Unspecified symptoms and signs involving cognitive functions and awareness

          2016 2017 2018 2019 Billable/Specific Code
        Applicable To
        • Unspecified neurocognitive disorder
        • disorientation R41.0

ICD-10-CM Codes Adjacent To R41.0
R40.2434 …… 24 hours or more after hospital admission
R40.244 Other coma, without documented Glasgow coma scale score, or with partial score reported
R40.2440 …… unspecified time
R40.2441 …… in the field [EMT or ambulance]
R40.2442 …… at arrival to emergency department
R40.2443 …… at hospital admission
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

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