A50 — Congenital syphilis
Is A50 billable?
No — A50 is a non-billable header code. A50 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 33 billable codes beneath A50.
Billable codes under this header
- A50.1Early congenital syphilis, latent
- A50.2Early congenital syphilis, unspecified
- A50.6Late congenital syphilis, latent
- A50.7Late congenital syphilis, unspecified
- A50.9Congenital syphilis, unspecified
- A50.01Early congenital syphilitic oculopathy
- A50.02Early congenital syphilitic osteochondropathy
- A50.03Early congenital syphilitic pharyngitis
- A50.04Early congenital syphilitic pneumonia
- A50.05Early congenital syphilitic rhinitis
- A50.06Early cutaneous congenital syphilis
- A50.07Early mucocutaneous congenital syphilis
- A50.08Early visceral congenital syphilis
- A50.09Other early congenital syphilis, symptomatic
- A50.30Late congenital syphilitic oculopathy, unspecified
- A50.31Late congenital syphilitic interstitial keratitis
- A50.32Late congenital syphilitic chorioretinitis
- A50.39Other late congenital syphilitic oculopathy
- 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
- A50.51Clutton's joints
- A50.52Hutchinson's teeth
- A50.53Hutchinson's triad
- A50.54Late congenital cardiovascular syphilis
- A50.55Late congenital syphilitic arthropathy
- A50.56Late congenital syphilitic osteochondropathy
- A50.57Syphilitic saddle nose
- A50.59Other late congenital syphilis, symptomatic
A50 at a glance
| Code | A50 |
|---|---|
| Description | Congenital syphilis |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from A50-A64
The conditions below can never be reported together with A50 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 to fully describe the condition. A50 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, but a patient may have both at the same time. When documentation supports it, A50 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, but a patient may have both at the same time. When documentation supports it, A50 and the excluded code may both be reported.
- human immunodeficiency virus [HIV] disease (B20)
What codes fall under A50? (9)
- A50.0Early congenital syphilis, symptomaticnot billable
- A50.1Early congenital syphilis, latent
- A50.2Early congenital syphilis, unspecified
- A50.3Late congenital syphilitic oculopathynot billable
- A50.4Late congenital neurosyphilis [juvenile neurosyphilis]not billable
- A50.5Other late congenital syphilis, symptomaticnot billable
- A50.6Late congenital syphilis, latent
- A50.7Late congenital syphilis, unspecified
- A50.9Congenital syphilis, unspecified
How long has A50 existed?
A50 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.