ICD 10 CM Codes

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.
Z00-Z13 Persons encountering health services for examinations (Z00-Z13)
Z14-Z15 Genetic carrier and genetic susceptibility to disease (Z14-Z15)
Z16-Z16 Resistance to antimicrobial drugs (Z16)
Z17-Z17 Estrogen receptor status (Z17)
Z18-Z18 Retained foreign body fragments (Z18)
Z20-Z28 Persons with potential health hazards related to communicable diseases (Z20-Z28)
Z30-Z39 Persons encountering health services in circumstances related to reproduction (Z30-Z39)
Z40-Z53 Encounters for other specific health care (Z40-Z53)
Z55-Z65 Persons with potential health hazards related to socioeconomic and psychosocial circumstances (Z55-Z65)
Z66-Z66 Do not resuscitate status (Z66)
Z67-Z67 Blood type (Z67)
Z68-Z68 Body mass index [BMI] (Z68)
Z69-Z76 Persons encountering health services in other circumstances (Z69-Z76)
Z77-Z99 Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)