Positive Predictive Value of the ICD-10 Diagnosis Code for Long-COVID.
Lærke Storgaard DuerlundShakil ShakarHenrik NielsenJacob BodilsenPublished in: Clinical epidemiology (2022)
The overall PPV of diagnosis codes for long-COVID in the North Denmark Region was high and was likely suitable for future registry-based studies of long-COVID. Caution is advised at the extremes of age and secondary diagnosis codes.