I’m coding for urgent care and the providers often give oral Diphenhydramine HCL to handle other symptoms that are nothing to do with chemo. Web MD lists all kinds of uses for the drug, non of which are chemo related specifically, yet the only oral HCPCS code for the drug specifically states for use at the time of chemo treatment. (Q0163)

Does anyone know if I can use this code even when not related to chemo or do I have to use the J8499 – prescription drug, oral, non-chemo, NOS? (or some other HCPCS code I may be missing)
Thank you.