Patient presents with localized gingival abscess, characterized by a painful, swollen, erythematous, and fluctuant gingival lesion.  Chief complaint includes throbbing pain and localized gingival swelling.  Symptoms onset reported as [duration].  Medical history reviewed; patient denies any relevant systemic illnesses or allergies.  Intraoral examination reveals a localized, circumscribed swelling of the gingiva at tooth [tooth number or area].  Purulent exudate expressed upon gentle palpation.  Periodontal probing depths surrounding the affected area were [measurements].  No significant mobility detected.  Diagnosis of gingival abscess confirmed based on clinical presentation and examination findings.  Differential diagnosis considered included periodontal abscess, periapical abscess, and herpetic gingivostomatitis.  Treatment plan includes incision and drainage of the abscess, irrigation with sterile saline, and debridement of the affected area.  Patient advised on oral hygiene instructions including warm saline rinses and prescribed chlorhexidine gluconate mouthwash.  Patient instructed to return for follow-up evaluation in [duration] to monitor healing and assess for any recurrence.  Potential complications discussed, including cellulitis, osteomyelitis, and systemic infection.  ICD-10 code K05.2 assigned.  CPT code [appropriate CPT code, e.g., 41820, D4999] may be considered depending on specific procedures performed.