ICD-10 Code A52.17 – General paresis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A52.17 – General paresis
What it is
General paresis is a late neurologic complication of syphilis that affects the brain. It is coded when documentation identifies general paresis or paresis due to neurosyphilis.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include progressive cognitive decline, personality change, mood disturbance, and neurologic impairment consistent with late neurosyphilis.
When to use this code
Use A52.17 when the provider documents general paresis, general paresis of the insane, or paresis due to syphilis. Apply it when the diagnosis is established in the record, not merely suspected.
If the chart only says neurosyphilis without specifying general paresis, check documentation before coding. Code the documented condition as stated and follow any additional instructions for associated syphilis manifestations.
Do not use for
Do not use this code for unrelated dementia, psychiatric illness, or nonspecific neurologic symptoms without a documented syphilitic cause. Check documentation if the record does not clearly identify general paresis.
Coding tip
Verify that the provider links the neurologic syndrome to syphilis before assigning A52.17.