Patient presents with signs and symptoms suggestive of secondary brain cancer, also known as metastatic brain cancer or brain metastasis.  Onset of [Symptom 1, e.g., headaches], [Symptom 2, e.g., seizures], and [Symptom 3, e.g., cognitive impairment] was reported as [Onset timeframe, e.g., gradual over the past three months].  Neurological examination revealed [Specific neurological findings, e.g., mild left hemiparesis, visual field deficits].  Patient history is significant for [Primary cancer type, e.g., stage IV non-small cell lung cancer] diagnosed [Date of primary cancer diagnosis].  Imaging studies, including [Imaging modality, e.g., MRI of the brain with and without contrast], demonstrate [Imaging findings, e.g., multiple ring-enhancing lesions consistent with metastatic deposits].  Differential diagnosis includes primary brain tumors, such as glioblastoma and meningioma, as well as other neurological conditions like abscesses and stroke.  Based on the patient's history of [Primary cancer type] and the characteristic imaging findings, the diagnosis of secondary brain cancer is highly suspected.  Biopsy of the brain lesion is planned to confirm the diagnosis histologically and guide treatment decisions.  Treatment options for secondary brain cancer include corticosteroids for symptom management, radiation therapy, such as whole-brain radiation therapy or stereotactic radiosurgery, chemotherapy, and surgical resection where appropriate.  Referral to oncology, neurosurgery, and palliative care will be initiated.  The patient's prognosis and treatment plan will be discussed with the patient and family after histopathological confirmation. This documentation supports ICD-10 code [Appropriate ICD-10 code, e.g., C79.31 for secondary malignant neoplasm of brain] and relevant CPT codes for the diagnostic procedures performed and therapeutic interventions planned.  Patient education regarding brain metastasis management, potential side effects of treatment, and supportive care resources was provided.  Follow-up appointment is scheduled for [Date of follow-up].