F80.0
ICD-10BillablePhonological disorder
Official ICD-10-CM descriptor (FY2026)
Phonological disorder
F80.0 is valid for submission on a claim — CMS flags it as a billable, specific code.
Inclusion terms
- Dyslalia
- Functional speech articulation disorder
- Lalling
- Lisping
- Phonological developmental disorder
- Speech articulation developmental disorder
- Speech-sound disorder
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- speech articulation impairment due to aphasia NOS (R47.01)
- speech articulation impairment due to apraxia (R48.2)
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- 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)
Related codes in F80
Where this code sits
- Parent code
- F80
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.