Patient presents with a suspected penicillin allergy.  Onset of symptoms occurred approximately (timeframe) after exposure to (specific penicillin medication, e.g., amoxicillin, ampicillin, penicillin G).  Reported symptoms include (detailed description of symptoms, e.g., urticaria, pruritus, angioedema, wheezing, dyspnea, hypotension, anaphylaxis).  Severity of reaction is characterized as (mild, moderate, severe) based on reaction criteria consistent with (e.g., Brown classification, Gell and Coombs classification).  Patient denies prior history of confirmed penicillin allergy testing but reports (family history of penicillin allergy if applicable, or previous antibiotic reactions).  Differential diagnosis includes drug eruption, viral exanthem, and other allergic reactions.  Assessment suggests (possible, probable, confirmed) penicillin allergy.  Treatment plan includes discontinuation of offending medication.  Patient education provided regarding penicillin allergy management, including avoidance of penicillins and cross-reactivity with other beta-lactam antibiotics.  Patient instructed on appropriate use of alternative antibiotics and provided with a medical alert bracelet or wallet card.  Referral to allergist for penicillin allergy testing (e.g., skin testing, RAST) is recommended to confirm diagnosis and assess cross-reactivity.  ICD-10 code Z88.0 (Allergy to penicillin) is assigned.  Future antibiotic prescriptions will reflect documented penicillin allergy. Patient advised to seek immediate medical attention if any symptoms recur.