Non-Billable / Non-Specific Code
ICD-10-CM A50.4 is the diagnosis code for Late congenital neurosyphilis [juvenile neurosyphilis]. This code falls under the section "Infections with a predominantly sexual mode of transmission" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as A50.4. They are mutually exclusive:
Understanding where A50.4 sits in the ICD-10-CM classification helps ensure proper coding:
No, A50.4 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
A50.4 is the ICD-10-CM diagnosis code for "Late congenital neurosyphilis [juvenile neurosyphilis]". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of A50.4 is A50 ("Congenital syphilis"). A50.4 provides a more specific classification within this category.
A50.4 is located in Section A50-A64 — "Infections with a predominantly sexual mode of transmission" within Chapter 1 of the ICD-10-CM Tabular List.
A50.4 has 7 sub-code(s) that provide more specific detail: A50.40, A50.41, A50.42, A50.43, A50.44 and more.
Use A50.4 when the patients documented diagnosis matches "Late congenital neurosyphilis [juvenile neurosyphilis]" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Late congenital neurosyphilis [juvenile neurosyphilis] is A50.4.
No, A50.4 is non-billable. Use a more specific sub-code for primary diagnosis billing.
A50.4 is in Chapter 1 of the ICD-10-CM Tabular List.
Type 1 Excludes for A50.4 include: Hutchinson's triad (A50.53).
Yes, A50.4 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.