ICD-10-CM 2027
ICD-10 code for Agrammatism
From the official ICD-10-CM alphabetic index entry “Agrammatism”. Page updated September 29, 2026.
About coding Agrammatism
The ICD-10-CM code for Agrammatism is R48.8 (Other symbolic dysfunctions).
Within R48, choose R48.8 (Other symbolic dysfunctions) only when documentation doesn't support a more specific option: dyslexia and alexia (R48.0), agnosia (R48.1), apraxia (R48.2), visual agnosia (R48.3) and unspecified symbolic dysfunctions (R48.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 886 (Behavioral and Developmental Disorders, relative weight 1.8678), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Agrammatism ICD-10 codes
What is the ICD-10 code for Agrammatism?
- R48.8 — Other symbolic dysfunctions.
Is R48.8 billable?
- Yes. R48.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R48.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R48.8 as a principal diagnosis.
Is R48.8 a CC or MCC?
- No. R48.8 is neither a CC nor an MCC under MS-DRG v44.0.