Code
Hierarchy
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Z00-Z99 Factors influencing health status and contact with health services (Z00-Z99)
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Z55-Z65 Persons with potential health hazards related to socioeconomic and psychosocial circumstances (Z55-Z65)
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Z55 Problems related to education and literacy
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Z55.0 Illiteracy and low-level literacy
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Z55.1 Schooling unavailable and unattainable
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Z55.2 Failed school examinations
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Z55.3 Underachievement in school
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Z55.4 Educational maladjustment and discord with teachers and classmates
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Z55.5 Less than a high school diploma
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Z55.6 Problems related to health literacy
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Z55.8 Other problems related to education and literacy
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Z55.9 Problems related to education and literacy, unspecified
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Notes
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Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
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(a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
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(b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.