I62.02
BillableNontraumatic subacute subdural hemorrhage
HCC Category Mapping
V28HCC 248 — Cerebral Hemorrhage
0.289V24HCC 99 — Intracranial Hemorrhage
0.262ESRDHCC 99 — Intracranial Hemorrhage
0.000What This Code Means
Bleeding between the brain and its outer membrane (subdural space) not caused by trauma, occurring between 4-20 days after onset.
Coding Tips
- •Subacute timing is typically 4-20 days; confirm the clinical timeline in documentation
- •This intermediate stage requires careful dating to distinguish from acute or chronic phases
Clinical Significance
Nontraumatic subacute subdural hemorrhage represents an intermediate phase between acute and chronic bleeding, typically presenting 4 to 20 days after onset. This phase is clinically significant because the hemorrhage may expand or resolve, requiring careful monitoring. The diagnosis reflects ongoing intracranial pathology with risk of neurological deterioration and is important for capturing the complexity of patient care in risk adjustment.
Documentation Requirements
- ✓Imaging confirmation showing subacute subdural hemorrhage characteristics (isodense to slightly hypodense on CT)
- ✓Documentation of the timeline establishing subacute timing (4-20 days)
- ✓Documentation of nontraumatic etiology
- ✓Serial neurological assessments documenting clinical stability or change
- ✓Evaluation for underlying bleeding disorders or anticoagulation use
- ✓Treatment plan including monitoring frequency and intervention thresholds
Commonly Confused Codes
I62.01 — Acute nontraumatic subdural hemorrhage; within the first 72 hoursI62.03 — Chronic nontraumatic subdural hemorrhage; present for more than 20 daysI62.00 — Unspecified nontraumatic subdural hemorrhage; use when timing cannot be determinedS06.5X — Traumatic subdural hemorrhage; requires trauma as the cause
Code Hierarchy
└I62Other and unspecified nontraumatic intracranial hemorrhage└I62.0Nontraumatic subdural hemorrhage└I62.02Nontraumatic subacute subdural hemorrhage
└I62.02Nontraumatic subacute subdural hemorrhage