ICD-10 Code I60.6 – Nontraumatic subarachnoid hemorrhage from other intracranial arteries (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I60.6 – Nontraumatic subarachnoid hemorrhage from other intracranial arteries
What it is
This code identifies a spontaneous subarachnoid hemorrhage involving an intracranial artery other than the more specific named vessels in the category. It means bleeding has occurred in the space around the brain without trauma.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings include sudden severe headache, nausea, vomiting, neck stiffness, altered mental status, or focal neurologic deficits confirmed by imaging or specialist assessment.
When to use this code
Use I60.6 when the provider documents a nontraumatic subarachnoid hemorrhage from an intracranial artery that is not coded to a more specific site in the I60 category. Apply it when imaging, angiography, or operative notes identify the arterial source. Check documentation if the vessel is unspecified or if trauma is involved.
Do not use for
Do not use this code for traumatic subarachnoid hemorrhage or for hemorrhage from a specifically named intracranial artery when another I60 code fits better. If the source is uncertain, check documentation.
Coding tip
Code the exact documented arterial source first; use I60.6 only when the site is intracranial but not otherwise specified in the category.