Patient presents with complaints consistent with thyroiditis.  Symptoms include fatigue, weight changes, neck pain or discomfort, and changes in bowel habits.  Physical examination reveals a palpable thyroid gland, potentially with tenderness or enlargement.  Differential diagnosis includes Hashimoto's thyroiditis, subacute thyroiditis, postpartum thyroiditis, and silent thyroiditis.  Laboratory testing, such as thyroid stimulating hormone TSH, free T4, free T3, and thyroid peroxidase antibodies TPO antibodies, is essential for confirming the diagnosis and determining the specific type of thyroiditis.  Ultrasound of the thyroid may be indicated to assess thyroid gland morphology and identify any nodules or abnormalities.  Treatment for thyroiditis depends on the etiology and severity of the condition.  Management may include observation, symptomatic treatment with beta blockers for hyperthyroid symptoms, corticosteroids for subacute thyroiditis, and thyroid hormone replacement therapy levothyroxine for hypothyroidism.  Patient education on the course of the disease, potential complications, and medication management is crucial.  Follow-up appointments are scheduled to monitor thyroid function and adjust treatment as needed.  ICD-10 codes for thyroiditis include E06.1, E06.9, E05, and E03.2 depending on the specific type.  Medical billing and coding for thyroiditis will reflect the diagnostic testing, procedures performed, and ongoing management.  Documentation of thyroiditis should include detailed symptom descriptions, physical exam findings, laboratory results, treatment plan, and patient response to therapy.  This comprehensive approach ensures accurate diagnosis, appropriate treatment, and optimized reimbursement.