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F80.9

F80.9Developmental disorder of speech and language, unspecified

Billable / specific codeICD-10-CM

F80.9 is a billable, specific ICD-10-CM code for developmental disorder of speech and language, unspecified. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Communication disorder NOS
  • Language disorder NOS

Risk adjustment

F80.9 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

F80.9 is named in 10 Medicare coverage policies 9 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
  • A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
  • A56868Billing and Coding: Outpatient Speech Language Pathology
  • A56937Billing and Coding: Psychiatry and Psychology Services

How F80.9 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to F80.9.

  • Disordercommunication
  • Disorderlanguage(developmental)
  • Problemcommunication(developmental)
  • Problemlanguage(developmental)
  • Defect, defectivespeechdevelopmental
  • Delay, delayeddevelopmentlanguage
  • Delay, delayeddevelopmentspeech
  • Developmentdelayedspeech
  • Disorderdevelopmentallanguage
  • Disorderdevelopmentalspeech
  • Disorderspecificspeech and language
  • Disorderspeechdevelopmental

Related codes at this level

Codes that share F80. If F80.9 is not quite right, the correct code is usually one of these.

Questions about F80.9

Is F80.9 a billable ICD-10-CM code?
Yes. F80.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does F80.9 sit in the tabular list?
Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Pervasive and specific developmental disorders (F80-F89).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.