2020 ICD-10-CM Diagnosis Code R48.1

Agnosia

    2016 2017 2018 2019 2020 Billable/Specific Code
  • R48.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM R48.1 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of R48.1 - other international versions of ICD-10 R48.1 may differ.
Applicable To
  • Astereognosia (astereognosis)
  • Autotopagnosia
Type 1 Excludes
Type 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 R48.1. 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.
  • visual object agnosia (
    ICD-10-CM Diagnosis Code R48.3

    Visual agnosia

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Prosopagnosia
    • Simultanagnosia (asimultagnosia)
    R48.3
    )
The following code(s) above R48.1 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 R48.1:
  • R00-R99
    2020 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
  • R48
    ICD-10-CM Diagnosis Code R48

    Dyslexia and other symbolic dysfunctions, not elsewhere classified

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • specific developmental disorders of scholastic skills (F81.-)
    Dyslexia and other symbolic dysfunctions, not elsewhere classified
Clinical Information
  • A rare disorder characterized by the lack of ability to recognize individuals, objects, shapes, sounds, or smells. There is no loss of memory. It is caused by neurological damage in the brain, specifically in the occipital or parietal lobes.
  • Inability to recognize, understand, or interpret sensory stimuli in the absence of sensory defects. Also, the selective loss of knowledge of specific objects due to emotional disturbance, as seen in schizophrenia, hysteria, or depression.
  • Loss of the ability to comprehend the meaning or recognize the importance of various forms of stimulation that cannot be attributed to impairment of a primary sensory modality. Tactile agnosia is characterized by an inability to perceive the shape and nature of an object by touch alone, despite unimpaired sensation to light touch, position, and other primary sensory modalities.
  • Loss of the ability to distinguish the significance of stimuli; may be auditory, visual, olfactory, tactile, or gustatory.
ICD-10-CM R48.1 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 886 Behavioral and developmental disorders

Convert R48.1 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

Diagnosis Index entries containing back-references to R48.1:
  • Agnosia (body image) (other senses) (tactile) R48.1
  • Astereognosia, astereognosis R48.1
  • Autotopagnosia R48.1

ICD-10-CM Codes Adjacent To R48.1
R47.01 Aphasia
R47.02 Dysphasia
R47.1 Dysarthria and anarthria
R47.8 Other speech disturbances
R47.81 Slurred speech
R47.82 Fluency disorder in conditions classified elsewhere
R47.89 Other speech disturbances
R47.9 Unspecified speech disturbances
R48 Dyslexia and other symbolic dysfunctions, not elsewhere classified
R48.0 Dyslexia and alexia
R48.1 Agnosia
R48.2 Apraxia
R48.3 Visual agnosia
R48.8 Other symbolic dysfunctions
R48.9 Unspecified symbolic dysfunctions
R49 Voice and resonance disorders
R49.0 Dysphonia
R49.1 Aphonia
R49.2 Hypernasality and hyponasality
R49.21 Hypernasality
R49.22 Hyponasality

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