Z00-Z13: Persons encountering health services for examination and investigation
Z03: Medical observation and evaluation for suspected diseases and conditions, ruled out
The Z03 code from the ICD-10 WHO 2016 classification refers to the medical observation and evaluation for diagnosed diseases and conditions that have been ruled out. This signifies that a patient has been thoroughly examined and investigated for certain symptoms or health conditions they may have been suspected to have, but after a series of diagnostic tests or evaluations, these conditions have been excluded. These suspected health problems can span across all systems of the body and can range from infectious diseases to potential genetic conditions, cardiovascular issues, and more. The symptoms or signs prompting this evaluation and monitoring might be broad and varying, reflecting the range of conditions originally suspected. This does not necessarily mean that the patient is completely healthy, but rather that the specific conditions initially suspected are not present. This code is used in a variety of healthcare settings, including outpatient care, hospital-based settings, and specialized clinics.
Subcodes of Z03:
- Z03.0: Observation for suspected tuberculosis
- Z03.1: Observation for suspected malignant neoplasm
- Z03.2: Observation for suspected mental and behavioural disorders
- Z03.3: Observation for suspected nervous system disorder
- Z03.4: Observation for suspected myocardial infarction
- Z03.5: Observation for other suspected cardiovascular diseases
- Z03.6: Observation for suspected toxic effect from ingested substance
- Z03.8: Observation for other suspected diseases and conditions
- Z03.9: Observation for suspected disease or condition, unspecified
Patient Disclaimer
The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.
If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.