Problems related to education and literacy
In Persons with potential health hazards related to socioeconomic and psychosocial circumstances (Z55-Z65), chapter 21: Factors Influencing Health Status and Contact with Health Services
9 billable codes under Z55: none are a CC or MCC; none map to an HCC.
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Instructional notes
Excludes1: not coded here, use a different code
- disorders of psychological development (F80-F89)
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers when and how to use Z codes (Z00-Z99) for encounters and supplementary information, including contact, status, history, screening, aftercare, exams, and social determinants of health.
All codes under Z55
Z55 can't be used on a claim. Pick a billable code below; grey headings group them.
- Z55.0Illiteracy and low-level literacy
- Z55.1Schooling unavailable and unattainable
- Z55.2Failed school examinations
- Z55.3Underachievement in school
- Z55.4Educational maladjustment and discord with teachers and 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
Z55 MS-DRG
As the principal diagnosis, all 9 billable codes under Z55 group to MS-DRG 951 (v44.0).
Other codes that refer to Z55
Notes on these codes point to Z55.
Code history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.