Subarachnoid Hemorrhage ICD-10-CM Codes | 2023

Read this guide to learn about the ICD-10 codes related to o subarachnoid hemorrhage you can use and clinical information about subarachnoid hemorrhage.

By Wynona Jugueta on Aug 8, 2025.

Fact Checked by RJ Gumban.

Use Code

What ICD-10 codes can be used for subarachnoid hemorrhage?

I60.9

This ICD-10 code stands for Nontraumatic subarachnoid hemorrhage, unspecified. This is meant to be used on patients who are confirmed to have a non-traumatic subarachnoid hemorrhage. A subarachnoid hemorrhage is a type of bleeding that occurs in the subarachnoid space, which is the space that surrounds the brain. The unspecified is used to designate that the specific location isn’t known, but what is known is that the patient does have a subarachnoid hemorrhage.

I60.00

This ICD-10 code stands for Nontraumatic subarachnoid hemorrhage from unspecified carotid siphon and bifurcation. It is similar to the previous ICD-10 code but this time, a specific location is mentioned: the carotid siphon and bifurcation. The carotid siphon is this U or S-shaped part of the internal carotid artery that ends at the internal carotid artery bifurcation.

I60.10

This ICD-10 code stands for Nontraumatic subarachnoid hemorrhage from unspecified middle cerebral artery. This code is meant to be used on patients who are confirmed to have a non-traumatic subarachnoid hemorrhage that originated in the middle cerebral artery, only it is unspecified where in the middle cerebral artery it started.

I60.30

This ICD-10 code stands for Nontraumatic subarachnoid hemorrhage from unspecified posterior communicating artery. This code is meant to be used on patients who are confirmed to have a non-traumatic subarachnoid hemorrhage that originated in the posterior communicating artery, only it is unspecified where in the posterior communicating artery it started.

I60.4

This ICD-10 code stands for Nontraumatic subarachnoid hemorrhage from basilar artery. This code is meant to be used on patients who are confirmed to have a non-traumatic subarachnoid hemorrhage that originated in the basilar artery.

I60.50

This ICD-10 code stands for Nontraumatic subarachnoid hemorrhage from unspecified vertebral artery. This code is meant to be used on patients who are confirmed to have a non-traumatic subarachnoid hemorrhage that originated in the vertebral artery, only it is unspecified where in the vertebral artery it started.

Which of these subarachnoid hemorrhage codes are billable?

All of the aforementioned codes are billable codes and can be used to designate a patient for reimbursement purposes.

Clinical information:

A subarachnoid hemorrhage refers to bleeding occurring in the subarachnoid space within the skull, which encompasses the brain. This condition is concerning because if the bleeding remains uncontrolled, it progressively exerts more pressure on the brain, potentially leading to disability or fatality.

The primary cause of this hemorrhage is often attributed to the rupture or leakage of an aneurysm. It can be classified as either traumatic or non-traumatic. The former denotes that the hemorrhage resulted from a head injury, while the latter implies that the hemorrhage is spontaneous and caused by the rupturing of an aneurysm.

A person with a subarachnoid hemorrhage will experience any one or several of the following symptoms:

Double vision
Severe headaches
Nasuea
Vomiting
Drooping eyelids
Having trouble speaking
Sensitivity to light
Seizures

To confirm the presence of a subarachnoid hemorrhage, CT scans, MRI scans, angiograms, spinal taps can be conducted. To treat it, the bleeding must be stopped, so surgery will be required to prevent it from damaging the brain and killing the patient.

Synonyms include:

Hemorrhage into subarachnoid space of neuraxis
Hemorrhage into subarachnoid space of spine
Hemorrhage into subpial space of neuraxis
Non-aneurysmal perimesencephalic subarachnoid hemorrhage
Ruptured aneurysm of middle cerebral artery
Subarachnoid hemorrhage from middle cerebral artery aneurysm
Aneurysm of posterior communicating artery
Carotid artery rupture
Injury of internal carotid artery

Commonly asked questions

Yes, the aforementioned codes are billable.

You can use any of the aforementioned codes so long as you can confirm the type of subarachnoid hemorrhage the patient has and the general area where it is located (or not, given that there are unspecified codes).

By stopping the bleeding through surgery.

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