Neurosyphilis, unspecified

This code represents neurosyphilis where the specific manifestation (e.g., meningovascular, tabes dorsalis, general paresis) is not documented or determined. It indicates a late-stage complication of syphilis affecting the central nervous system, characterized by a range of neurological and psychiatric symptoms.

Use this code when documentation confirms a diagnosis of neurosyphilis but lacks specificity regarding the exact clinical form. This is appropriate when the provider has not specified the type of neurosyphilis, or when diagnostic workup is incomplete. Supporting documentation would include positive serological tests for syphilis and evidence of CNS involvement, such as CSF abnormalities, without further detail on the specific neurological syndrome.

• Avoid using this code if a more specific type of neurosyphilis (e.g., meningovascular syphilis, tabes dorsalis) is documented.
• Ensure documentation clearly indicates CNS involvement due to syphilis; do not use for latent or tertiary syphilis without neurological signs.
• Consider sequencing this code after the primary reason for the encounter if the neurosyphilis is a co-morbidity rather than the primary diagnosis.