ICD-10-CM 2027
ICD-10 code for Spelling retardation
From the official ICD-10-CM alphabetic index entry “Retardation › spelling (specific) (without reading disorder)”. Page updated September 29, 2026.
About coding Spelling retardation
The ICD-10-CM code for Spelling retardation is F81.81 (Disorder of written expression).
Within F81.8 (other developmental disorders of scholastic skills), F81.81 is specifically for disorder of written expression. Related codes cover other developmental disorders of scholastic skills (F81.89).
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 Spelling retardation ICD-10 codes
What is the ICD-10 code for Spelling retardation?
- F81.81 — Disorder of written expression.
Is F81.81 billable?
- Yes. F81.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F81.81 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F81.81 as a principal diagnosis.
Is F81.81 a CC or MCC?
- No. F81.81 is neither a CC nor an MCC under MS-DRG v44.0.