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ICD-10-CM Codes
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R00-R99
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
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R47-R49
Symptoms and signs involving speech and voice
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R48-
Dyslexia and other symbolic dysfunctions, not elsewhere classified
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2022 ICD-10-CM Diagnosis Code R48.8
2022 ICD-10-CM Diagnosis Code R48.8
Other symbolic dysfunctions
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
- R48.8 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2022 edition of ICD-10-CM R48.8 became effective on October 1, 2021.
- This is the American ICD-10-CM version of R48.8 - other international versions of ICD-10 R48.8 may differ.
The following code(s) above
R48.8 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
R48.8:
Approximate Synonyms
- Acalculia
- Agraphia
- Aphasia, angular gyrus syndrome
- Aphasia-angular gyrus syndrome
- Gerstmanns syndrome
Clinical Information
- A wide group of related learning disorders characterized by difficulties with mathematics and manipulating numbers; the difficulty with math may be caused or exacerbated by visuo-spatial or language processing difficulties.
- Form of aphasia involving impaired ability to perform simple arithmetic calculations.
- Impaired ability in numerical concepts. These inabilities arise as a result of primary neurological lesion, are syndromic (e.g., gerstmann syndrome ) or acquired due to brain damage.
- Inability to write (letters, syllables, words, or phrases) due to an injury to a specific cerebral area or occasionally due to emotional factors.
- Loss or impairment of the ability to write (letters, syllables, words, or phrases) due to an injury to a specific cerebral area or occasionally due to emotional factors. This condition rarely occurs in isolation, and often accompanies aphasia. (from Adams et al., Principles of Neurology, 6th ed, p485; apa, thesaurus of psychological index terms, 1994)
ICD-10-CM R48.8 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):
- 886 Behavioral and developmental disorders
Convert R48.8 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
Code annotations containing back-references to R48.8:
- Abolition, language R48.8
- Acalculia R48.8
- Agrammatism R48.8
- Agraphia (absolute) R48.8
- Amimia R48.8
- Amnesia R41.3
ICD-10-CM Diagnosis Code R41.3
Other amnesia
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
Applicable To- Amnesia NOS
- Memory loss NOS
Type 1 Excludes- amnestic disorder due to known physiologic condition (F04)
- amnestic syndrome due to psychoactive substance use (F10-F19 with 5th character .6)
- mild memory disturbance due to known physiological condition (F06.8)
- transient global amnesia (G45.4)
- Amusia R48.8
- Anomia R48.8
- Asymbolia R48.8
- Bianchi's syndrome R48.8
- Blindness (acquired) (congenital) (both eyes) H54.0X-
ICD-10-CM Diagnosis Code H54.0X-
Blindness, both eyes, different category levels
2018 - New Code 2019 2020 2021 2022 Non-Billable/Non-Specific Code
- Deafness (acquired) (complete) (hereditary) (partial) H91.9-
ICD-10-CM Diagnosis Code H91.9-
Unspecified hearing loss
2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
Applicable To- Deafness NOS
- High frequency deafness
- Low frequency deafness
- Disorder (of) - see also Disease
- learning (specific) F81.9
ICD-10-CM Diagnosis Code F81.9
Developmental disorder of scholastic skills, unspecified
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
Applicable To- Knowledge acquisition disability NOS
- Learning disability NOS
- Learning disorder NOS
- Dyscalculia R48.8
- Dysfunction
- symbolic R48.9
ICD-10-CM Diagnosis Code R48.9
Unspecified symbolic dysfunctions
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
- Echolalia R48.8
- Gerstmann's syndrome R48.8
- Palilalia R48.8
- Perseveration R48.8 (tonic)
- Strephosymbolia F81.0
ICD-10-CM Diagnosis Code F81.0
Specific reading disorder
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
Applicable To- 'Backward reading'
- Developmental dyslexia
- Specific learning disorder, with impairment in reading
- Specific reading retardation
- secondary to organic lesion R48.8
ICD-10-CM Codes Adjacent To R48.8
R47.8 Other speech disturbances
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
R48.8
Other symbolic dysfunctions
R48.9 Unspecified symbolic dysfunctions
R49 Voice and resonance disorders
R49.2 Hypernasality and hyponasality
R49.8 Other voice and resonance disorders
R49.9 Unspecified voice and resonance disorder
R50 Fever of other and unknown origin
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.