Z55.3
ICD-10BillableUnderachievement in school
Official ICD-10-CM descriptor (FY2026)
Underachievement in school
Z55.3 is valid for submission on a claim — CMS flags it as a billable, specific code.
Related codes in Z55
- Z55.0Illiteracy and low-level literacy
- Z55.1Schooling unavailable and unattainable
- Z55.2Failed school examinations
- Z55.4Educational maladjustment & discord w teachers & classmates
- Z55.5Less than a high school diploma
- Z55.6Problems related to health literacy
- Z55.8Other problems related to education and literacy
- Z55.9Problems related to education and literacy, unspecified
Where this code sits
- Parent code
- Z55
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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.