Code
Hierarchy
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Z00-Z99 Factors influencing health status and contact with health services (Z00-Z99)
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Z30-Z39 Persons encountering health services in circumstances related to reproduction (Z30-Z39)
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Z3A Weeks of gestation
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Z3A.3 Weeks of gestation of pregnancy, weeks 30-39
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Z3A.30 30 weeks gestation of pregnancy
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Z3A.31 31 weeks gestation of pregnancy
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Z3A.32 32 weeks gestation of pregnancy
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Z3A.33 33 weeks gestation of pregnancy
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Z3A.34 34 weeks gestation of pregnancy
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Z3A.35 35 weeks gestation of pregnancy
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Z3A.36 36 weeks gestation of pregnancy
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Z3A.37 37 weeks gestation of pregnancy
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Z3A.38 38 weeks gestation of pregnancy
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Z3A.39 39 weeks gestation of pregnancy
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Notes
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Codes from category Z3A are for use, only on the maternal record, to indicate the weeks of gestation of the pregnancy, if known.
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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.