For us coding old-timers, ICD-10-CM changes only took place on October 1st of each year. Then, COVID hit and the CDC announced that effective March 18, 2020, an “emergency use” category (U07) was created which included codes U07.0“Vaping-related disorder” and U07.1“COVID-19”....
which naturally means they didn’t have an ICD-10 code. To find an undiagnosed patient population in rare disease, you might need to search unstructured EMR data for patients who experienced a handful of different symptoms, which occurred in...