ICD-10 Code I60 – Nontraumatic subarachnoid hemorrhage (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I60 – Nontraumatic subarachnoid hemorrhage
What it is
I60 identifies bleeding into the subarachnoid space that is not caused by trauma. It covers spontaneous subarachnoid hemorrhage, often related to a ruptured aneurysm or other vascular cause.
Clinical signs
Typical findings include sudden severe headache, neck stiffness, nausea, vomiting, photophobia, or loss of consciousness. Clinical features vary; refer to documentation and imaging results.
When to use this code
Use I60 when the record documents a nontraumatic subarachnoid hemorrhage, whether confirmed by CT, MRI, angiography, or specialist assessment. Code the documented cause or site when available. If the note only says “headache” or “intracranial bleed” without subarachnoid hemorrhage, do not assign I60.
Do not use for
Do not use I60 for traumatic subarachnoid hemorrhage or other traumatic intracranial bleeding. It is also not appropriate when documentation supports a different type of hemorrhage or the diagnosis is unconfirmed; check documentation.
Coding tip
Verify that the provider specifies nontraumatic subarachnoid hemorrhage and capture any documented cause or location.