F80.0 ICD-10-CM Code: Phonological disorder
F80.0 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC coding software
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FY 2026 Apr update / Mental, Behavioral and Neurodevelopmental disorders (F01-F99) / Pervasive and specific developmental disorders (F80-F89)
F80.0
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidancePhonological disorder
A speech disorder where a child has difficulty producing certain speech sounds correctly, affecting how clearly they speak. The child's language understanding is typically normal, but sound production is impaired.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
HistoricalHistorical
Not used for CY2026 payment
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
Official- Dyslalia
- Functional speech articulation disorder
- Lalling
- Lisping
- Phonological developmental disorder
- Speech articulation developmental disorder
- Speech-sound disorder
Excludes 2
Official- 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)
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)Inherited from F01-F99
Related Codes
Includes
Official- disorders of psychological developmentInherited from F01-F99
Excludes 1
Official- speech articulation impairment due to aphasia NOS (R47.01)
- speech articulation impairment due to apraxia (R48.2)
Code First
OfficialNo Code First sequencing instructions are included in this display for F80.0. Check the code and parent instructions in the Code Book.
Use Additional
OfficialNo Use Additional Code instructions are included in this display for F80.0. Check the code and parent instructions in the Code Book.
Code Also
OfficialNo Code Also instructions are included in this display for F80.0. Check the code and parent instructions in the Code Book.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is F80.0 an HCC code?
No. F80.0 is a billable ICD-10-CM code with no mapping under the current CMS-HCC V28 community payment model, and none under the ESRD, Part D RxHCC, or HHS-HCC models.
- Code
- F80.0
- Description
- Phonological disorder
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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What This Code Means
F80.0 is the ICD-10-CM diagnosis code for phonological disorder. A speech disorder where a child has difficulty producing certain speech sounds correctly, affecting how clearly they speak. The child's language understanding is typically normal, but sound production is impaired. F80.0 sits in the ICD-10-CM chapter for mental, behavioral and neurodevelopmental disorders (f01-f99), within the section covering pervasive and specific developmental disorders (f80-f89).
F80.0 is a billable ICD-10-CM code, but no current CMS-HCC V28 community payment mapping is shown, and none under the ESRD, Part D RxHCC, or HHS-HCC models. Do not assign risk adjustment value from this page when no source-backed mapping is shown; verify the applicable model and payment year.
Ensure the disorder is not secondary to hearing loss, cleft palate, or neurological conditions; if secondary, code the underlying condition instead.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for F80.0 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Ensure the disorder is not secondary to hearing loss, cleft palate, or neurological conditions; if secondary, code the underlying condition instead
- •Document specific phonemes affected and age of onset to support the diagnosis
Excludes 1, Do NOT code together
Excludes 2, Not included here, may code separately
- 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)