A50.31

Billable

Late congenital syphilitic interstitial keratitis

A50.31 is the ICD-10-CM code for Late congenital syphilitic interstitial keratitis. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
A00-B99
Parent
A50.3
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

What this means — in plain language

MedlinePlus · NIH

Your cornea is the outermost layer of your eye. It is clear and shaped like a dome. The cornea helps to shield the rest of the eye from germs, dust, and other harmful matter. It also helps your eye to focus. If you wear contact lenses, they float on top of your corneas. Problems with the cornea include: Refractive errors Allergies Infections Injuries Dystrophies - conditions in which parts of the cornea lose clarity…

Read more about Corneal Disorders at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code A50.31?
A50.31 is the ICD-10-CM code for "Late congenital syphilitic interstitial keratitis". It falls under A00-B99 Certain infectious and parasitic diseases.
Is A50.31 a billable code?
Yes — A50.31 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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