F80.0 Phonological disorder

BillableNo payment HCCChapter 5

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Instructional notes

Chapter 5

Excludes2Not included here: the patient may have both; report both when both are present.

symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Includes

disorders of psychological development

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.

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

Excludes2Not included here: the patient may have both; report both when both are present.

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

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

Chapter 5: Mental, Behavioral and Neurodevelopmental disorders · F80-F89 Pervasive and specific developmental disorders (F80-F89)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.