Z55.0
BillableIlliteracy and low-level literacy
Illiteracy and low-level literacy
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Related Codes(8)
Z55.1Schooling unavailable and unattainable
Z55.2Failed school examinations
Z55.3Underachievement in school
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
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(17)
SNOMED CT
Clinical Terms
- Illiterate literacy level
- Low-level literacy
- Educational problem
- Literacy problems
- Unable to read
- Finding related to literacy level
- Finding related to ability to read
- Illiteracy
Frequently Asked Questions
What is the ICD-10 code for illiteracy and low-level literacy?
The ICD-10-CM code for illiteracy and low-level literacy is Z55.0. The full clinical description is "Illiteracy and low-level literacy". Z55.0 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code Z55.0 mean?
ICD-10-CM code Z55.0 represents “Illiteracy and low-level literacy”. It is classified under Chapter 22: Factors Influencing Health Status and Contact With Health Services and is a billable/specific code that can be used on a claim.
Is Z55.0 a billable code?
Yes, Z55.0 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is Z55.0 in?
Z55.0 is in Chapter 22: Factors Influencing Health Status and Contact With Health Services (codes Z00-Z99).
What codes cannot be used with Z55.0?
Z55.0 has Excludes1 notes indicating codes that cannot be used together with it, including: disorders of psychological development (F80-F89).
What SNOMED CT codes does Z55.0 map to?
Z55.0 maps to 8 SNOMED CT concepts: 4506002, 365792003, 440039008, 161112004, 707843000, and 3 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for Z55.0?
Z55.0 is linked to 1 UMLS Concept Unique Identifier: C0476584. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does Z55.0 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like illiteracy and low-level literacy affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of Z55.0?
Z55.0 maps to the ICD-11 code: QD90 (Problem associated with illiteracy or low-level literacy).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.