I60 — Nontraumatic subarachnoid hemorrhage
I60 is a non-billable header ICD-10-CM code for nontraumatic subarachnoid hemorrhage. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- syphilitic ruptured cerebral aneurysm (A52.05)
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- sequelae of subarachnoid hemorrhage (I69.0-)
Use additional code
Add a secondary code to capture the detail described below.
- code, if known, to indicate National Institutes of Health Stroke Scale (NIHSS) score (R29.7-)
Other codes that can never be billed with I60
These codes carry an Excludes1 note pointing at I60. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading I60 alone.
Risk adjustment
I60 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead I60
10 child codes. Green means billable.
- I60.0Nontraumatic subarachnoid hemorrhage from carotid siphon and bifurcation
- I60.1Nontraumatic subarachnoid hemorrhage from middle cerebral artery
- I60.2Nontraumatic subarachnoid hemorrhage from anterior communicating artery
- I60.3Nontraumatic subarachnoid hemorrhage from posterior communicating artery
- I60.4Nontraumatic subarachnoid hemorrhage from basilar artery
- I60.5Nontraumatic subarachnoid hemorrhage from vertebral artery
- I60.6Nontraumatic subarachnoid hemorrhage from other intracranial arteries
- I60.7Nontraumatic subarachnoid hemorrhage from unspecified intracranial artery
- I60.8Other nontraumatic subarachnoid hemorrhage
- I60.9Nontraumatic subarachnoid hemorrhage, unspecified
Questions about I60
- Is I60 a billable ICD-10-CM code?
- No. I60 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does I60 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Cerebrovascular diseases (I60-I69).
- What cannot be coded together with I60?
- I60 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.