ICD-10 Code G93.81 – Temporal sclerosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G93.81 – Temporal sclerosis
What it is
Temporal sclerosis refers to scarring or hardening in the temporal lobe of the brain. You use this code when documentation identifies temporal sclerosis as the diagnosed condition.
Clinical signs
Clinical features vary; refer to documentation. It may be associated with neurologic findings involving the temporal lobe, but the record should state the diagnosis clearly.
When to use this code
Use G93.81 when the provider documents temporal sclerosis as the reason for evaluation, imaging interpretation, or ongoing neurologic care. Code it when the condition is confirmed in the chart, not merely suspected. If the note describes a different sclerosis type, check documentation.
Do not use for
Do not use this code for unspecified brain lesions, seizures alone, or other sclerosis diagnoses without temporal lobe involvement. If the documentation is unclear, check documentation.
Coding tip
Assign G93.81 only when the provider specifically links sclerosis to the temporal lobe.