A50.31
✓ Billable
Late congenital syphilitic interstitial keratitis
ICD-10-CM · FY2026 · Certain Infectious and Parasitic Diseases
Code
A50.31
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Certain Infectious and Parasitic Diseases
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code A50.31?
ICD-10-CM code A50.31 represents Late congenital syphilitic interstitial keratitis. It is a billable diagnosis code in the Certain Infectious and Parasitic Diseases chapter, effective October 1, 2025 – September 30, 2026.
Is A50.31 billable?
Yes. A50.31 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is A50.31 in?
A50.31 belongs to the Certain Infectious and Parasitic Diseases chapter (A00–B99) of ICD-10-CM.
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A50.3
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