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F80.0

F80.0: Phonological disorder

Billable / specific codeICD-10-CM

F80.0 is a billable, specific ICD-10-CM code for phonological disorder. It is valid for submission on a claim.

Check F80.0 with the rest of the claim: free scrubber

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • speech articulation impairment due to aphasia NOS (R47.01)
  • speech articulation impairment due to apraxia (R48.2)

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • speech articulation impairment due to hearing loss (F80.4)
  • speech articulation impairment due to intellectual disabilities (F70-F79)
  • speech articulation impairment with expressive language developmental disorder (F80.1)
  • speech articulation impairment with mixed receptive expressive language developmental disorder (F80.2)

Inclusion terms

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

  • Dyslalia
  • Functional speech articulation disorder
  • Lalling
  • Lisping
  • Phonological developmental disorder
  • Speech articulation developmental disorder
  • Speech-sound disorder

Other codes that can never be billed with F80.0

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • R47Speech disturbances, not elsewhere classified

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

F80.0 is named in 15 Medicare coverage policies: 13 listing it as supporting medical necessity, and 2 listing it as NOT covered. Which one applies depends on your Medicare contractor.

  • A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
  • A56865Billing and Coding: Psychiatric Inpatient Hospitalizationnot covered
  • A52866Billing and Coding: Speech-Language Pathology
  • A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders

Alphabetic index entries that lead here

  • Dyslalia(developmental)
  • Idioglossia
  • Lalling
  • Lisping
  • Disorder›speech-sound
  • Disorder›developmental›phonological
  • Disorder›speech›articulation(functional) (specific)
  • Disorder›developmental›speech›articulation

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under F80

ICD-10-CMFY2027· effective October 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.