Note
  • 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
  • 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
  • Z20-Z28 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