Patient presents with complaints consistent with possible subdural hygroma.  Presenting symptoms include [Insert specific patient symptoms e.g., headache, nausea, dizziness, confusion, lethargy, seizures, focal neurological deficits].  Onset of symptoms occurred [Insert timeframe e.g., gradually over the past week, acutely following a fall].  Patient history includes [Insert relevant medical history e.g., recent head trauma, history of falls, anticoagulant use, history of subdural hematoma, neurosurgical procedures].  Physical examination reveals [Insert pertinent positive and negative findings e.g., normal pupils and extraocular movements, no signs of meningeal irritation, mild hemiparesis].  Imaging studies, including [Specify imaging modality e.g., CT scan of the head without contrast, MRI of the brain], demonstrate a [Specify radiographic findings e.g., crescentic fluid collection over the cerebral convexity, hypodense subdural collection without evidence of acute hemorrhage].  The findings are consistent with a subdural hygroma.  Differential diagnosis includes subdural hematoma, chronic subdural hematoma, and arachnoid cyst.  Given the patient's clinical presentation and imaging findings, the diagnosis of subdural hygroma is most likely.  Treatment plan includes [Specify treatment plan e.g., conservative management with close neurological monitoring, repeat imaging in [Timeframe], neurosurgical consultation if symptoms worsen or if the hygroma enlarges, pain management, antiemetics].  Patient education provided regarding the diagnosis, treatment plan, and potential complications.  Follow-up scheduled in [Timeframe].  ICD-10 code [Insert appropriate ICD-10 code e.g., G93.0, S06.5X9A] is considered.  CPT codes for evaluation and management services will be determined based on the complexity of the encounter.