Z00-Z13: Persons encountering health services for examination and investigation

The group of conditions within the Z00-Z13 range in the ICD-10 WHO 2016 classification is collectively titled "Persons encountering health services for examination and investigation". This group pertains to patients who are not currently diagnosed with a specific disease, but are nonetheless undergoing various health services for screening, evaluation, or discovery of potential health issues. These health services could be part of a routine health checkup, special tests done with a potential diagnosis in mind, or procedures to confirm or rule out a suspected health problem. There is no common cause, symptom or disease progression applicable to this group because these codes are mainly used to indicate the reason for the health service. Patients in this group may or may not have symptoms and the systems affected would entirely depend on the individual case at hand.