Z04.9 Encounter for examination and observation for unspecified reason
Instructional Notes:
Z04.9 Description: Encounter for examination and observation for unspecified reason Inclusion Term:
Encounter for observation NOS
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Z04 Description: Encounter for examination and observation for other reasons Include:
encounter for examination for medicolegal reasons
This category is to be used when a person without a diagnosis is suspected of having an abnormal condition, without signs or symptoms, which requires study, but after examination and observation, is ruled-out. This category is also for use for administrative and legal observation status.
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Z00-Z13 Description: Persons encountering health services for examinations (Z00-Z13) Exclude1:
examinations related to pregnancy and reproduction (Z30-Z36, Z39.-)
Notes:
Nonspecific abnormal findings disclosed at the time of these examinations are classified to categories R70-R94.
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Z00-Z99 Description: Factors influencing health status and contact with health services Notes:
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.