ICD-10-CM 2027 diagnosis code

R48Dyslexia and other symbolic dysfunctions, not elsewhere classified

Not billable — use a more specific code

R48 is a header code, so it can't be reported by itself. Choose one of the 6 more specific codes beneath it.Short description: Dyslexia and oth symbolic dysfunctions, NEC

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About R48

R48 is the ICD-10-CM diagnosis code for dyslexia and other symbolic dysfunctions, not elsewhere classified. It belongs to block R47-R49 (symptoms and signs involving speech and voice) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: R48.0 (alexia), R48.1 (agnosia), R48.2 (apraxia), R48.3 (agnosia), R48.8 (dysfunctions) and R48.9 (dysfunctions).

Don't report R48 together with the conditions in its Excludes1 note: specific developmental disorders of scholastic skills (F81.-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under R48

Coding notes

Excludes1Not coded here — never report together with this code

specific developmental disorders of scholastic skills (F81.-)

Notes that apply from higher levels

Instructions written at a parent level also apply to R48.

Broader instructions also apply from Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

Code history

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2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about R48

Is R48 billable?: No. R48 is a header code. Report one of its more specific subcodes instead.