ICD-10 Code A52.19 – Other symptomatic neurosyphilis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A52.19 – Other symptomatic neurosyphilis
What it is
This code identifies symptomatic neurosyphilis that does not fit a more specific subtype. It reflects active nervous system involvement from syphilis, with the exact presentation documented by the clinician.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include neurologic or psychiatric symptoms, cranial nerve involvement, sensory changes, or gait disturbance consistent with neurosyphilis.
When to use this code
Use A52.19 when the record confirms symptomatic neurosyphilis and the provider does not specify a more exact category. It is appropriate when neurologic manifestations are attributed to syphilis and documented as other symptomatic neurosyphilis. Check documentation if the chart only notes syphilis exposure or a positive test without nervous system findings.
Do not use for
Do not use this code for latent syphilis, congenital syphilis, or asymptomatic serologic findings alone. If the documentation identifies a different neurosyphilis type, code that more specific diagnosis instead.
Coding tip
Code from the provider’s stated neurosyphilis type and symptoms, and query when the record does not clearly link neurologic findings to syphilis.