I62.01

Billable

Nontraumatic acute subdural hemorrhage

HCC Category Mapping

V28HCC 248 — Cerebral Hemorrhage

0.289

V24HCC 99 — Intracranial Hemorrhage

0.262

ESRDHCC 99 — Intracranial Hemorrhage

0.000

What This Code Means

Sudden bleeding between the brain and its outer membrane (subdural space) not caused by trauma, occurring within the first few days.

Coding Tips

•Acute subdural hemorrhage typically presents within 72 hours; verify timing in clinical documentation
•Distinguish from traumatic subdural hemorrhage which uses different code series

Clinical Significance

Nontraumatic acute subdural hemorrhage is a neurological emergency with rapid symptom onset and potential for brain herniation within hours. It requires urgent neurosurgical evaluation and often surgical evacuation. This diagnosis carries significant risk adjustment weight as it represents one of the most resource-intensive acute cerebrovascular conditions. It is often seen in patients on anticoagulation therapy.

Documentation Requirements

✓Imaging confirmation (CT or MRI) showing acute subdural hemorrhage characteristics (hyperdense collection on CT)
✓Documentation of acute timing, typically within 72 hours of onset
✓Documentation that the hemorrhage is nontraumatic in etiology
✓Neurological examination including level of consciousness and focal deficits
✓Medication review, particularly anticoagulants and antiplatelet agents
✓Neurosurgical consultation and treatment plan (craniotomy, burr holes, or conservative management)

Commonly Confused Codes

I62.02 — Subacute nontraumatic subdural hemorrhage; develops over 4-20 days, not acute presentation I62.03 — Chronic nontraumatic subdural hemorrhage; slow accumulation over weeks to months I62.00 — Unspecified nontraumatic subdural hemorrhage; use only when timing cannot be determined S06.5X — Traumatic acute subdural hemorrhage; requires documented trauma as the cause

Code Hierarchy

└I62Other and unspecified nontraumatic intracranial hemorrhage └I62.0Nontraumatic subdural hemorrhage └I62.01Nontraumatic acute subdural hemorrhage

└I62.01Nontraumatic acute subdural hemorrhage