A50.4
Non-billableLate congenital neurosyphilis [juvenile neurosyphilis]
A50.4 is the ICD-10-CM code for Late congenital neurosyphilis [juvenile neurosyphilis]. It is a non-billable category code — use a more specific child code such as A50.40 for billing.
A00-B99 Certain infectious and parasitic diseases
What this means — in plain language
MedlinePlus · NIHSyphilis is a sexually transmitted infection (STI) caused by bacteria. It infects the genital area, lips, mouth, or anus of both men and women. You usually get syphilis from sexual contact with someone who has it. It can also pass from mother to baby during pregnancy. The early stage of syphilis usually causes a single, small, painless sore. Sometimes it causes swelling in nearby lymph nodes. If you do not treat it,…
Read more about Syphilis at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes1 — not coded here
- •Hutchinson's triad (A50.53)
Use additional code
- •code to identify any associated mental disorder
Frequently asked questions
- What is ICD-10 code A50.4?
- A50.4 is the ICD-10-CM code for "Late congenital neurosyphilis [juvenile neurosyphilis]". It falls under A00-B99 Certain infectious and parasitic diseases.
- Is A50.4 a billable code?
- No — A50.4 is a non-billable header code. Use a more specific child code (such as A50.40) for billing.
- What are the subcodes of A50.4?
- A50.4 has 7 more specific child codes, including A50.40, A50.41, A50.42.
- What is excluded from A50.4?
- Excludes1 (not coded here): Hutchinson's triad (A50.53).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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