I61.1 Nontraumatic intracerebral hemorrhage in hemisphere, cortical

Billable ICD-10-CM code, FY2026. Acts as a Major Complication or Comorbidity (MCC) as a secondary diagnosis.

Applicable to

• Cerebral lobe hemorrhage (nontraumatic)
• Superficial intracerebral hemorrhage (nontraumatic)

Applies from I61 Nontraumatic intracerebral hemorrhage

Excludes2 (not included here)

• sequelae of intracerebral hemorrhage (I69.1-)

Use additional code

• code, if known, to indicate National Institutes of Health Stroke Scale (NIHSS) score (R29.7-)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 248 — Intracranial Hemorrhage
• CMS-HCC V22: HCC 99 — Cerebral Hemorrhage
• ESRD V24: HCC 99

MS-DRG index

Defines the logic of DRG(s) 020-022 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 431 Intracerebral hemorrhage (approximate)

Code annotations containing back-references to I61.1

Back-references to I61

• Type 1 Excludes: G31.84 Mild cognitive impairment of uncertain or unknown etiology ("cerebrovascular diseases (I60-I69)")
• Code First: G46 Vascular syndromes of brain in cerebrovascular diseases ("underlying cerebrovascular disease (I60-I69)")
• Code Also: G96.81 Intracranial hypotension ("Nontraumatic intracerebral hemorrhage (I61.-)")
• Type 2 Excludes: I10 Essential (primary) hypertension ("essential (primary) hypertension involving vessels of brain (I60-I69)")
• Type 2 Excludes: I15 Secondary hypertension ("secondary hypertension involving vessels of brain (I60-I69)")
• Use Additional: I16.1 Hypertensive emergency ("cerebral hemorrhage (I60.-. I61.-, I62.-)")

Diagnosis Index entries for I61.1

• Hemorrhage, hemorrhagic (concealed) › cerebral, cerebrum › lobe
• Hemorrhage, hemorrhagic (concealed) › cortical (brain)
• Hemorrhage, hemorrhagic (concealed) › intracranial (nontraumatic) › intracerebral (nontraumatic) (in) › hemisphere › cortical (superficial)
• Hemorrhage, hemorrhagic (concealed) › intracranial (nontraumatic) › intracerebral (nontraumatic) (in) › superficial

Nearby codes

• I61 Nontraumatic intracerebral hemorrhage
• I61.0 Nontraumatic intracerebral hemorrhage in hemisphere, subcortical
• I61.1 Nontraumatic intracerebral hemorrhage in hemisphere, cortical (this code)
• I61.2 Nontraumatic intracerebral hemorrhage in hemisphere, unspecified
• I61.3 Nontraumatic intracerebral hemorrhage in brain stem
• I61.4 Nontraumatic intracerebral hemorrhage in cerebellum
• I61.5 Nontraumatic intracerebral hemorrhage, intraventricular
• I61.6 Nontraumatic intracerebral hemorrhage, multiple localized