Code
Hierarchy
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Z00-Z99 Factors influencing health status and contact with health services (Z00-Z99)
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Z77-Z99 Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
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Z77 Other contact with and (suspected) exposures hazardous to health
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Z77.1 Contact with and (suspected) exposure to environmental pollution and hazards in the physical environment
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Z77.12 Contact with and (suspected) exposure to hazards in the physical environment
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Z77.120 Contact with and (suspected) exposure to mold (toxic)
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Z77.121 Contact with and (suspected) exposure to harmful algae and algae toxins
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Z77.122 Contact with and (suspected) exposure to noise
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Z77.123 Contact with and (suspected) exposure to radon and other naturally occurring radiation
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Z77.128 Contact with and (suspected) exposure to other hazards in the physical environment
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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
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any follow-up examination (Z08-Z09)
Includes
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contact with and (suspected) exposures to potential hazards to health
Excludes 2
Z77.123
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radiation exposure as the cause of a confirmed condition (W88-W90, X39.0-)
- X39.0 Exposure to natural radiation
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radiation sickness NOS (T66)
- T66 Radiation sickness, unspecified
- Z20 Contact with and (suspected) exposure to communicable diseases
- P96.81 Exposure to (parental) (environmental) tobacco smoke in the perinatal period
- P04 Newborn affected by noxious substances transmitted via placenta or breast milk
- Z57 Occupational exposure to risk factors
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retained foreign body (Z18.-)
- Z18 Retained foreign body fragments
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retained foreign body fully removed (Z87.821)
- Z87.821 Personal history of retained foreign body fully removed
- T51-T65 Toxic effects of substances chiefly nonmedicinal as to source (T51-T65)