A50.39 ICD-10-CM Code: Other late congenital syphilitic oculopathy
HCC Buddy Code Card
Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.
FY 2026 Apr update / Certain infectious and parasitic diseases (A00-B99) / Infections with a predominantly sexual mode of transmission (A50-A64)
A50.39
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceOther late congenital syphilitic oculopathy
This code describes eye problems that develop later in life as a result of syphilis infection passed from mother to child during pregnancy, excluding the most common forms like interstitial keratitis. These eye complications can appear months or years after birth.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for A50.39 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for A50.39 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for A50.39 in this effective period.
Excludes 1
Official- Hutchinson's triad (A50.53)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for A50.39 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for A50.39 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for A50.39 in this effective period.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is A50.39 an HCC code?
No. A50.39 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- A50.39
- Description
- Other late congenital syphilitic oculopathy
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A50.39 is the ICD-10-CM diagnosis code for other late congenital syphilitic oculopathy. This code describes eye problems that develop later in life as a result of syphilis infection passed from mother to child during pregnancy, excluding the most common forms like interstitial keratitis. These eye complications can appear months or years after birth. A50.39 sits in the ICD-10-CM chapter for certain infectious and parasitic diseases (a00-b99), within the section covering infections with a predominantly sexual mode of transmission (a50-a64).
A50.39 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Verify the documentation specifies 'late' congenital syphilis (typically appearing after age 2) rather than early congenital syphilis to ensure correct code selection.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for A50.39 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Verify the documentation specifies 'late' congenital syphilis (typically appearing after age 2) rather than early congenital syphilis to ensure correct code selection
- •Use this code only when the specific eye condition is not better described by A50.30 (interstitial keratitis) or A50.31 (chorioretinitis); review ophthalmology notes for the exact nature of the ocular manifestation

