Z55 ICD-10-CM Code: Problems related to education and literacy
Z55 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · free HCC coding tools
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FY 2026 Apr update / Factors influencing health status and contact with health services (Z00-Z99) / Persons with potential health hazards related to socioeconomic and psychosocial circumstances (Z55-Z65)
Z55
Header CodeICD-10-CMOfficial ICD-10-CMCodebook guidanceProblems related to education and literacy
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialNo inclusion terms are included in this display for Z55. Check the code and parent instructions in the Code Book.
Excludes 2
OfficialNo Excludes 2 notes are included in this display for Z55. Check the code and parent instructions in the Code Book.
Related Codes
Includes
OfficialNo Includes notes are included in this display for Z55. Check the code and parent instructions in the Code Book.
Excludes 1
Official- disorders of psychological development (F80-F89)
Code First
OfficialNo Code First sequencing instructions are included in this display for Z55. Check the code and parent instructions in the Code Book.
Use Additional
OfficialNo Use Additional Code instructions are included in this display for Z55. Check the code and parent instructions in the Code Book.
Code Also
OfficialNo Code Also instructions are included in this display for Z55. Check the code and parent instructions in the Code Book.
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 →
- Code
- Z55
- Description
- Problems related to education and literacy
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- No
- Payment year
- 2026
Coder workflow notes
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What This Code Means
Z55 is the ICD-10-CM diagnosis code for problems related to education and literacy. Z55 sits in the ICD-10-CM chapter for factors influencing health status and contact with health services (z00-z99), within the section covering persons with potential health hazards related to socioeconomic and psychosocial circumstances (z55-z65).
Header codes like Z55 cannot be reported on claims directly; they organize child codes that share clinical context. Coders should select the billable child code that matches the documented presentation and then verify its current source-backed HCC mapping. Do not infer a child code or risk adjustment value from the header alone.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for Z55 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.