Patient presents with a midline neck mass consistent with a thyroglossal duct cyst.  The patient reports a palpable, non-tender, and mobile mass located in the anterior neck, specifically at or near the hyoid bone.  The mass may move with swallowing or tongue protrusion.  Symptoms may include dysphagia, dyspnea, or a sensation of fullness in the throat, though the patient may be asymptomatic.  Differential diagnosis includes branchial cleft cyst, dermoid cyst, lymphadenopathy, and thyroid nodule.  Physical examination reveals a smooth, fluctuant mass.  Ultrasound of the neck was performed to confirm the diagnosis of thyroglossal duct cyst and evaluate its characteristics, including size, location, and relationship to surrounding structures.  Surgical excision, specifically the Sistrunk procedure, is the recommended treatment to prevent recurrence and potential complications such as infection or rarely, malignant transformation.  Risks and benefits of the procedure were discussed with the patient, including potential complications such as bleeding, infection, hypothyroidism, and recurrent laryngeal nerve injury.  Patient education provided regarding post-operative care and follow-up.  ICD-10 code Q89.2 (thyroglossal duct anomaly) and CPT code 60280 (thyroglossal duct cyst excision, Sistrunk procedure) are appropriate for this encounter.  Follow-up appointment scheduled for post-operative evaluation and monitoring.