I tried searching for this first but didn't see any prior post of this question anywhere so here it is. How would you code a sensitivity treatment? Diagnosis I have for this patient is 995.3 (Certain adverse effects not elsewhere classified; allergy, unspecified) and this treatment is being done at a chiropractor's office which is confusing me. The dx code is not specific enough to tell me what the patient is allergic to so I'm not even sure where to begin looking for this code.

Thanks in advance for the help!