Patient presents with complaints consistent with a left buttock abscess.  Symptoms include localized pain, swelling, erythema, and tenderness to palpation in the left gluteal region.  Onset of symptoms reported as [duration].  Patient may also report fever, chills, malaise, and purulent drainage.  Physical examination reveals an indurated, fluctuant mass on the left buttock, possibly with overlying skin changes such as warmth and increased vascularity.  Differential diagnosis includes furuncle, carbuncle, cellulitis, pilonidal cyst, and hidradenitis suppurativa.  Diagnosis of left buttock abscess confirmed based on clinical presentation and physical examination findings.  Treatment plan includes incision and drainage of the abscess, packing with iodoform gauze, and wound care instructions.  Patient education provided regarding proper hygiene, wound dressing changes, and signs of infection.  Antibiotic therapy may be considered based on severity of infection, presence of systemic symptoms, and patient comorbidities.  Follow-up appointment scheduled for wound check and dressing change in [duration].  ICD-10 code L02.411, Left buttock abscess, is documented for billing and coding purposes.  Patient advised to return to clinic or seek emergency medical attention if symptoms worsen or new symptoms develop.