A50.4 — Late congenital neurosyphilis [juvenile neurosyphilis]
Is A50.4 billable?
No — A50.4 is a non-billable header code. A50.4 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 7 billable codes beneath A50.4.
Billable codes under this header
- A50.40Late congenital neurosyphilis, unspecified
- A50.41Late congenital syphilitic meningitis
- A50.42Late congenital syphilitic encephalitis
- A50.43Late congenital syphilitic polyneuropathy
- A50.44Late congenital syphilitic optic nerve atrophy
- A50.45Juvenile general paresis
- A50.49Other late congenital neurosyphilis
A50.4 at a glance
| Code | A50.4 |
|---|---|
| Description | Late congenital neurosyphilis [juvenile neurosyphilis] |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with A50.4 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- Hutchinson's triad (A50.53)
Use additional code
Report an additional code alongside A50.4 to fully describe the condition. A50.4 is sequenced first.
- code to identify any associated mental disorder
Excludes1 — never code together — inherited from A50-A64
The conditions below can never be reported together with A50.4 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from Chapter 1
Report an additional code alongside A50.4 to fully describe the condition. A50.4 is sequenced first.
- code to identify resistance to antimicrobial drugs (Z16.-)
Excludes2 — not included here — inherited from Chapter 1
The conditions below are not part of A50.4, but a patient may have both at the same time. When documentation supports it, A50.4 and the excluded code may both be reported.
- carrier or suspected carrier of infectious disease (Z22.-)
- certain localized infections - see body system-related chapters
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
Excludes2 — not included here — inherited from A50-A64
The conditions below are not part of A50.4, but a patient may have both at the same time. When documentation supports it, A50.4 and the excluded code may both be reported.
- human immunodeficiency virus [HIV] disease (B20)
What codes fall under A50.4? (7)
- A50.40Late congenital neurosyphilis, unspecified
- A50.41Late congenital syphilitic meningitis
- A50.42Late congenital syphilitic encephalitis
- A50.43Late congenital syphilitic polyneuropathy
- A50.44Late congenital syphilitic optic nerve atrophy
- A50.45Juvenile general paresis
- A50.49Other late congenital neurosyphilis
How long has A50.4 existed?
A50.4 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the A50 family? (8)
- A50.0Early congenital syphilis, symptomaticnot billable
- A50.1Early congenital syphilis, latent
- A50.2Early congenital syphilis, unspecified
- A50.3Late congenital syphilitic oculopathynot billable
- A50.5Other late congenital syphilis, symptomaticnot billable
- A50.6Late congenital syphilis, latent
- A50.7Late congenital syphilis, unspecified
- A50.9Congenital syphilis, unspecified