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A52.1

⚠ Non-billable (Header)

Symptomatic neurosyphilis

Certain infectious and parasitic diseases (A00-B99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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✓ No additional coding notes for A52.1

Child Codes (9)

A52.10Symptomatic neurosyphilis, unspecifiedA52.11Tabes dorsalisA52.12Other cerebrospinal syphilisA52.13Late syphilitic meningitisA52.14Late syphilitic encephalitisA52.15Late syphilitic neuropathyA52.16Charcôt's arthropathy (tabetic)A52.17General paresisA52.19Other symptomatic neurosyphilis

Clinical Description

ICD-10-CM code A52.1 represents symptomatic neurosyphilis. This code falls under the Certain infectious and parasitic diseases (A00-B99) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 5-character code at the 4th level of specificity. There are 9 more specific child codes under A52.1.

Frequently Asked Questions

What is ICD-10 code A52.1?

ICD-10-CM code A52.1 is "Symptomatic neurosyphilis". It belongs to the category: Certain infectious and parasitic diseases (A00-B99).

Is A52.1 a billable ICD-10 code?

No, A52.1 is a non-billable header code. A more specific child code must be used for billing.

Related Codes in A52

Other codes in the same category that may be relevant for differential coding:

A52.0Cardiovascular and cerebrovascular syphilisA52.2Asymptomatic neurosyphilisA52.3Neurosyphilis, unspecifiedA52.7Other symptomatic late syphilisA52.8Late syphilis, latentA52.9Late syphilis, unspecified

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Code Information

CodeA52.1
BillableNo — Header code
ParentA52
CategoryCertain infectious and parasitic diseases (A00-B99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes9

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)