A50.4Header code — not billable
Late congenital neurosyphilis [juvenile neurosyphilis]
- Chapter
- 1. Certain infectious and parasitic diseases
- Category
- A50
- Effective date
- October 1, 2026
Related codes in category A50
A50Congenital syphilisA50.0Early congenital syphilis, symptomaticA50.01Early congenital syphilitic oculopathyYesA50.02Early congenital syphilitic osteochondropathyYesA50.03Early congenital syphilitic pharyngitisYesA50.04Early congenital syphilitic pneumoniaYesA50.05Early congenital syphilitic rhinitisYesA50.06Early cutaneous congenital syphilisYesA50.07Early mucocutaneous congenital syphilisYesA50.08Early visceral congenital syphilisYesA50.09Other early congenital syphilis, symptomaticYesA50.1Early congenital syphilis, latentYes
Frequently asked questions
What is ICD-10 code A50.4?
A50.4 is an ICD-10-CM diagnosis code for Late congenital neurosyphilis [juvenile neurosyphilis].
Is A50.4 a billable code?
No. A50.4 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is A50.4 in?
A50.4 falls under Chapter 1: Certain infectious and parasitic diseases.
When did A50.4 become effective?
A50.4 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to A50.4?
A50.4 belongs to category A50, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.