A52.3

What This Code Means

This code describes syphilis that has spread to the nervous system (brain and spinal cord), but the specific type or stage of neurological involvement has not been identified. It indicates a serious infection affecting the central nervous system that requires treatment.

Coding Tips

• •Use this code only when the medical record documents neurosyphilis but does not specify the type (such as general paresis, tabes dorsalis, or asymptomatic neurosyphilis); if a specific form is documented, use the more specific A52.0-A52.2 codes instead
• •Verify that the patient has confirmed syphilis diagnosis and documented evidence of nervous system involvement; neurosyphilis typically requires lumbar puncture findings or neurological symptoms to support the diagnosis