ICD-10-CM 2027
ICD-10 code for language developmental problem
From the official ICD-10-CM alphabetic index entry “Problem (with) (related to) › language (developmental)”. Page updated September 29, 2026.
About coding language developmental problem
The ICD-10-CM code for language developmental problem is F80.9 (Developmental disorder of speech and language, unspecified).
Within F80, choose F80.9 (Developmental disorder of speech and language, unspecified) only when documentation doesn't support a more specific option: Phonological disorder (F80.0), Expressive language disorder (F80.1), mixed receptive-expressive language disorder (F80.2), speech and language development delay due to hearing loss (F80.4) and other developmental disorders of speech and language (F80.8).
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 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 language developmental problem ICD-10 codes
What is the ICD-10 code for language developmental problem?
- F80.9 — Developmental disorder of speech and language, unspecified.
Is F80.9 billable?
- Yes. F80.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F80.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F80.9 as a principal diagnosis.
Is F80.9 a CC or MCC?
- No. F80.9 is neither a CC nor an MCC under MS-DRG v44.0.