Genetic susceptibility to malignant neoplasm of digestive system

confirmed abnormal gene

chromosomal anomalies (Q90-Q99)

code, if applicable, for any associated family history of the disease (Z80-Z84)

, if applicable, any current malignant neoplasm (C00-C75, C81-C96)

code, if applicable, for any personal history of malignant neoplasm (Z85.-)

• 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.