Patient presents with complaints consistent with possible lung adenocarcinoma.  Symptoms include persistent cough, hemoptysis, dyspnea, chest pain, and unexplained weight loss.  Patient history includes a significant smoking history of 40 pack-years.  Physical examination reveals decreased breath sounds and dullness to percussion in the right upper lobe.  Imaging studies, including a chest x-ray and CT scan of the chest, demonstrate a suspicious pulmonary nodule with characteristics suggestive of malignancy.  A subsequent bronchoscopy with biopsy was performed, and histopathological analysis confirmed the diagnosis of lung adenocarcinoma.  The tumor is staged as T2N1M0, indicating a moderately advanced, locally invasive tumor with regional lymph node involvement and no distant metastasis.  Molecular testing for EGFR mutations, ALK rearrangements, and PD-L1 expression is pending.  Treatment plan includes a multidisciplinary approach involving medical oncology, radiation oncology, and thoracic surgery.  Options for treatment will be discussed with the patient, including surgical resection, chemotherapy, targeted therapy, immunotherapy, or a combination thereof, depending on the results of molecular testing and overall patient performance status.  Referral to a pulmonologist, oncologist, and thoracic surgeon has been made.  Patient education regarding lung cancer treatment, prognosis, and palliative care options has been provided.  Follow-up appointment scheduled in one week to discuss treatment plan and address any patient concerns.  ICD-10 code C34.91 (malignant neoplasm of unspecified part of right lung) and relevant CPT codes for procedures performed are documented for medical billing and coding purposes.  Differential diagnosis included pneumonia, tuberculosis, and other lung malignancies.  This documentation reflects current best practices in lung cancer diagnosis and management.