ICD-10-CM chapter 21 · Z00-Z99
Factors influencing health status and contact with health services
About chapter 21
15 code blocks
- Z00-Z13Persons encountering health services for examinations11 categories
- Z14-Z15Genetic carrier and genetic susceptibility to disease2 categories
- Z16Resistance to antimicrobial drugs1 categories
- Z17Estrogen, and other hormones and factors receptor status1 categories
- Z18Retained foreign body fragments1 categories
- Z19Hormone sensitivity malignancy status1 categories
- Z20-Z29Persons with potential health hazards related to communicable diseases6 categories
- Z30-Z39Persons encountering health services in circumstances related to reproduction10 categories
- Z40-Z53Encounters for other specific health care13 categories
- Z55-Z65Persons with potential health hazards related to socioeconomic and psychosocial circumstances10 categories
- Z66Do not resuscitate status1 categories
- Z67Blood type1 categories
- Z68Body mass index [BMI]1 categories
- Z69-Z76Persons encountering health services in other circumstances8 categories
- Z77-Z99Persons with potential health hazards related to family and personal history and certain conditions influencing health status23 categories
Chapter notes
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.