ICD-10-CM Billable Code

A50.4

Late congenital neurosyphilis [juvenile neurosyphilis]

Clinical Classification Guidelines

Use Additional Code

  • code to identify any associated mental disorder

Excludes Type 1

  • Hutchinson's triad (A50.53)

Medical Intelligence & Overview

Late congenital neurosyphilis, also known as juvenile neurosyphilis, is a rare but serious condition that results from the spread of the syphilis infection to the nervous system in individuals who have had the disease since birth. If untreated, it can cause long-term neurological problems, impairments, and other health issues. Recognizing and understanding this condition is essential for appropriate diagnosis and management.

Causes & Symptoms

Clinical Causes: Infection with the bacterium Treponema pallidum during pregnancy, which is transmitted from an infected mother to her fetus. Failure to treat syphilis infection early in life, allowing the bacteria to invade the nervous system over time.

Key Symptoms: Headaches and migraines Hearing loss or deafness Visual disturbances, including blindness Seizures or neurological declines Poor coordination and balance issues Behavioral changes, confusion, or mental decline Syringomyelia (fluid-filled cavities in the spinal cord) Developmental delays in young children Skin lesions or rashes, particularly in childhood Muscle weakness or paralysis in advanced cases

Diagnostic & Treatment

Diagnosis Path: Diagnosing late congenital neurosyphilis involves a combination of clinical evaluation, laboratory tests, and neuroimaging. Healthcare providers may perform the following:

Treatment Protocols: The primary treatment for late congenital neurosyphilis involves antibiotic therapy aimed at eradicating the Treponema pallidum infection. Common approaches include:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is A50.4 a billable ICD-10 code?
Yes, A50.4 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report A50.4?
Clinical documentation must specify the nature of Late congenital neurosyphilis [juvenile neurosyphilis] and any associated comorbidities for accurate reporting.

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