Personal history of diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
Conditions classifiable to D50-D89
Parent Code Notes: Z86
Code first any follow-up examination after treatment (Z09)
Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
Code also any follow-up examination (Z08-Z09)
Factors influencing health status and contact with health services (Z00-Z99)
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.