Z77.121

Contact with and (suspected) exposure to (harmful) algae bloom NOS Contact with and (suspected) exposure to blue-green algae bloom Contact with and (suspected) exposure to brown tide Contact with and (suspected) exposure to cyanobacteria bloom Contact with and (suspected) exposure to Florida red tide Contact with and (suspected) exposure to pfiesteria piscicida Contact with and (suspected) exposure to red tide

contact with and (suspected) exposures to potential hazards to health

contact with and (suspected) exposure to communicable diseases (Z20.-) exposure to (parental) (environmental) tobacco smoke in the perinatal period (P96.81) newborn affected by noxious substances transmitted via placenta or breast milk (P04.-) occupational exposure to risk factors (Z57.-) retained foreign body (Z18.-) retained foreign body fully removed (Z87.821) toxic effects of substances chiefly nonmedicinal as to source (T51-T65)

any follow-up examination (Z08-Z09)

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: (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. (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.