Acquired Aneurysmal Subarachnoid Hemorrhage C0338572
Emergency bleeding in the brain from a burst blood vessel. Needs immediate neurosurgical evaluation. Recovery depends on bleeding severity and speed of treatment.
Key facts at a glance
- ICD-10
- G43.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- critical
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Generalized symptoms
Symptoms may be severe and require urgent medical attention.
Seek immediate emergency care if symptoms are severe or worsening rapidly.
Sudden severe headache (thunderclap)
Loss of consciousness
Neck stiffness (meningismus)
Focal neurological deficit
Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Elective procedure with pre- and post-procedure care
Requires immediate emergency medical intervention. Do not delay treatment.
Emergency aneurysm repair
Neurosurgical clipping or endovascular coiling of the ruptured aneurysm within 24-72 hours to prevent rebleeding, which carries extremely high mortality. Choice of approach depends on aneurysm characteristics and patient factors.
Nimodipine neuroprotection
Calcium channel blocker administered orally or intravenously to prevent cerebral vasospasm, a major cause of secondary brain injury after subarachnoid hemorrhage. Standard of care regardless of repair method.
Additional treatment options
Neurological ICU management
Continuous monitoring of intracranial pressure, cerebral perfusion pressure, and neurologic status in an intensive care setting. Aggressive management of hydrocephalus with external ventricular drain if indicated.
monitoringTranscranial Doppler surveillance
Serial ultrasound monitoring to detect cerebral vasospasm before clinical deterioration occurs. Allows for timely escalation of therapy including angioplasty for refractory cases.
procedureEarly neuro-rehabilitation
Structured physical, occupational, and speech therapy initiated as early as medically appropriate to maximize functional recovery. Addresses motor deficits, cognitive impairment, and communication difficulties.
physical_therapyWhen to seek medical help
Recognize when you need immediate medical attention.
Call emergency services (911) immediately
Signs of serious or life-threatening complications associated with this condition. Immediate medical evaluation is required.
Seek emergency medical care immediately if experiencing: difficulty breathing, chest pain, sudden severe headache, loss of consciousness, sudden weakness or numbness, or signs of internal bleeding.
Frequently asked questions
Common questions about this topic.
What is Acquired Aneurysmal Subarachnoid Hemorrhage C0338572?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Connolly ES Jr, Rabinstein AA, Carhuapoma JR, et al. Guidelines for the management of aneurysmal subarachnoid hemorrhage: a guideline for healthcare professionals from the American Heart Association/American Stroke Association. Stroke. 2012.
Kassner A, Merali Z. Assessment of aneurysm severity in subarachnoid hemorrhage: current neuroimaging approaches. Neuroimaging Clin N Am. 2020.
Li H, Zhao Y, Wang R, et al. Timing of aneurysm repair and outcomes in subarachnoid hemorrhage: a systematic review and meta-analysis. Neurosurgery. 2018.
Schmidt JM, Claassen J. Clinical prediction of delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage: evidence-based approaches. Curr Neurol Neurosci Rep. 2019.
Medication Comparisons
Compare medications used to treat Acquired Aneurysmal Subarachnoid Hemorrhage C0338572. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy