ICD-10 Code I61.1 – Nontraumatic intracerebral hemorrhage in hemisphere, cortical (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I61.1 – Nontraumatic intracerebral hemorrhage in hemisphere, cortical
What it is
I61.1 identifies a spontaneous bleed within the cortex of a cerebral hemisphere. It is used when the hemorrhage is not caused by trauma and the location is specifically cortical.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include sudden neurologic deficit, headache, altered speech, weakness, or sensory loss, depending on the affected cortical area.
When to use this code
Use I61.1 when the provider documents a nontraumatic intracerebral hemorrhage limited to the cortical region of a cerebral hemisphere. The record should support spontaneous intracerebral bleeding and a cortical location. If the note only says intracerebral hemorrhage without location, check documentation.
Do not use for
Do not use this code for traumatic brain hemorrhage or for hemorrhage in noncortical brain locations. If the documentation does not specify a cortical hemisphere bleed, check documentation.
Coding tip
Confirm both “nontraumatic” and “cortical hemisphere” in the provider record before assigning I61.1.