Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories
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.
Z00-Z13 Persons encountering health services for examinations
Z14-Z15 Genetic carrier and genetic susceptibility to disease
Z16-Z16 Resistance to antimicrobial drugs
Z17-Z17 Estrogen receptor status
Z18-Z18 Retained foreign body fragments
Z19-Z19 Hormone sensitivity malignancy status
Z20-Z29 Persons with potential health hazards related to communicable diseases
Z30-Z39 Persons encountering health services in circumstances related to reproduction
Z40-Z53 Encounters for other specific health care
Z55-Z65 Persons with potential health hazards related to socioeconomic and psychosocial circumstances
Z66-Z66 Do not resuscitate status
Z67-Z67 Blood type
Z68-Z68 Body mass index (BMI)
Z69-Z76 Persons encountering health services in other circumstances
Z77-Z99 Persons with potential health hazards related to family and personal history and certain conditions influencing health status
Persons encountering health services for examinations
Genetic carrier and genetic susceptibility to disease
Resistance to antimicrobial drugs
Estrogen receptor status
Retained foreign body fragments
Hormone sensitivity malignancy status
Persons with potential health hazards related to communicable diseases
Persons encountering health services in circumstances related to reproduction
Encounters for other specific health care
Persons with potential health hazards related to socioeconomic and psychosocial circumstances
Do not resuscitate status
Blood type
Body mass index (BMI)
Persons encountering health services in other circumstances
Persons with potential health hazards related to family and personal history and certain conditions influencing health status