ICD-10-CM 2027
ICD-10 code for symbolic dysfunction
From the official ICD-10-CM alphabetic index entry “Dysfunction › symbolic”. Page updated September 29, 2026.
About coding symbolic dysfunction
The ICD-10-CM code for symbolic dysfunction is R48.9 (Unspecified symbolic dysfunctions). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on R48.9.
Within R48, choose R48.9 (Unspecified 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 other symbolic dysfunctions (R48.8).
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 887 (Other Mental Disorder Diagnoses, relative weight 1.1139), 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.
More specific symbolic dysfunction codes (official index)
- specified type NEC R48.8 — Other symbolic dysfunctions
Common questions about symbolic dysfunction ICD-10 codes
What is the ICD-10 code for symbolic dysfunction?
- R48.9 — Unspecified symbolic dysfunctions. More specific codes apply when the documentation supports them: R48.8.
Is R48.9 billable?
- Yes. R48.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R48.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R48.9 as a principal diagnosis.
Is R48.9 a CC or MCC?
- No. R48.9 is neither a CC nor an MCC under MS-DRG v44.0.