F89 ICD-10-CM Code: Unspecified disorder of psychological development
F89 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)
F89
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceUnspecified disorder of psychological development
A disorder of psychological development that cannot be more specifically identified or classified.
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- Developmental disorder NOS
- Neurodevelopmental disorder NOS
Excludes 2
Official- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)Inherited from F01-F99
Related Codes
No related codes are included in this display for F89. Check the Code Book for the complete code path.
Includes
Official- disorders of psychological developmentInherited from F01-F99
Excludes 1
OfficialNo Excludes 1 notes are included in this display for F89. Check the code and parent instructions in the Code Book.
Code First
OfficialNo Code First sequencing instructions are included in this display for F89. Check the code and parent instructions in the Code Book.
Use Additional
OfficialNo Use Additional Code instructions are included in this display for F89. Check the code and parent instructions in the Code Book.
Code Also
OfficialNo Code Also instructions are included in this display for F89. 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 F89 an HCC code?
No. F89 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
- F89
- Description
- Unspecified disorder of psychological development
- 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
F89 is the ICD-10-CM diagnosis code for unspecified disorder of psychological development. A disorder of psychological development that cannot be more specifically identified or classified. F89 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).
F89 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.
This is the most nonspecific code for developmental disorders; use only when no other F80-F88 code applies.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for F89 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.