Code
Hierarchy
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Z00-Z99 Factors influencing health status and contact with health services (Z00-Z99)
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Z20-Z29 Persons with potential health hazards related to communicable diseases (Z20-Z29)
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Z28 Immunization not carried out and underimmunization status
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Z28.0 Immunization not carried out because of contraindication
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Z28.01 Immunization not carried out because of acute illness of patient
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Z28.02 Immunization not carried out because of chronic illness or condition of patient
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Z28.03 Immunization not carried out because of immune compromised state of patient
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Z28.04 Immunization not carried out because of patient allergy to vaccine or component
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Z28.09 Immunization not carried out because of other contraindication
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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.
Code Also
Includes
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vaccination not carried out