A50.40

A50.40: Late congenital neurosyphilis, unspecified

Billable / specific codeICD-10-CM

A50.40 is a billable, specific ICD-10-CM code for late congenital neurosyphilis, unspecified. It is valid for submission on a claim.

Check A50.40 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Juvenile neurosyphilis NOS

Excludes1 inherited from the categories above A50.40

A category’s note binds every code beneath it.

Written on A50.4: Late congenital neurosyphilis [juvenile neurosyphilis]

Hutchinson's triad (A50.53)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

A50.40 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A52996Billing and Coding: Routine Foot Care
A56937Billing and Coding: Psychiatry and Psychology Services
A57065Billing and Coding: Outpatient Psychiatry and Psychology Services
A57204Billing and Coding: MRI and CT Scans of the Head and Neck

Alphabetic index entries that lead here

Neurosyphilis›congenital
Neurosyphilis›juvenile(asymptomatic) (meningeal)
Syphilis, syphilitic›central nervous system›congenital
Syphilis, syphilitic›central nervous system›juvenile

Code history

Unchanged in every release from FY2024 to FY2027.