New ICD codes don’t even have a R/O, so while a practitioner, in theory, may be suspecting a diagnosis, insurance wants the diagnosis- and the code- before the patient leaves the initial consult.
Do not change a diagnosis, but perhaps don’t commit to UTI? Abdominal pain, fever, elevated WBC- start you on the path without locking you to it. Educate your patient how to appeal and write a letter of support, be their advocate but cover your license.