ICD-10-CM Diagnosis Code Z91.011

lactose intolerance (E73.-)

contact with and (suspected) exposures hazardous to health (Z77.-)

exposure to pollution and other problems related to physical environment (Z77.1-)

female genital mutilation status (N90.81-)

occupational exposure to risk factors (Z57.-)

personal history of physical injury and trauma (Z87.81, Z87.82-)

Allergy status to drugs, medicaments, and biological substances (Z88.-)

food additives allergy status (Z91.02)

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.