XXII: Codes for special purposes
U00-U49: Provisional assignment of new diseases of uncertain etiology or emergency use
The U00-U49 code grouping in the ICD-10 represents a range of conditions and diseases that are provisionally assigned due to their uncertain etiology or for emergency use. This group includes new diseases which have not yet had their causes or transmission methods absolutely defined by the medical community. These diseases can manifest in a broad spectrum of symptoms and may affect multiple systems in the body, depending upon their nature and progression. As these condition-specific details can vary greatly and are often under study, the precise characteristics and pathologies of these diseases can be unique for each one. Due to their uncertain etiology, the exact method of transmission for these diseases may not always be known, although many are found to be communicable. The progression of these diseases is also highly variable, with some potentially developing over a long period of time while others may advance rapidly. Please refer to individual disease profiles for more specific information.
Subcodes of U00-U49:
- U04: Severe acute respiratory syndrome [SARS]
- U07: Emergency use of U07
- U08: Personal history of COVID-19
- U09: Post COVID-19 condition
- U10: Multisystem inflammatory syndrome associated with COVID-19
- U11: Need for immunization against COVID-19
- U12: COVID-19 vaccines causing adverse effects in therapeutic use
- U13: Emergency use of U13
- U14: Emergency use of U14
- U15: Emergency use of U15
- U16: Emergency use of U16
- U17: Emergency use of U17
- U18: Emergency use of U18
- U19: Emergency use of U19
- U20: Emergency use of U20
- U21: Emergency use of U21
- U22: Emergency use of U22
- U23: Emergency use of U23
- U24: Emergency use of U24
- U25: Emergency use of U25
- U26: Emergency use of U26
- U27: Emergency use of U27
- U28: Emergency use of U28
- U29: Emergency use of U29
- U30: Emergency use of U30
- U31: Emergency use of U31
- U32: Emergency use of U32
- U33: Emergency use of U33
- U34: Emergency use of U34
- U35: Emergency use of U35
- U36: Emergency use of U36
- U37: Emergency use of U37
- U38: Emergency use of U38
- U39: Emergency use of U39
- U40: Emergency use of U40
- U41: Emergency use of U41
- U42: Emergency use of U42
- U43: Emergency use of U43
- U44: Emergency use of U44
- U45: Emergency use of U45
- U46: Emergency use of U46
- U47: Emergency use of U47
- U48: Emergency use of U48
- U49: Emergency use of U49
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.