A52
⚠ Non-billable
Late syphilis
ICD-10-CM · FY2026 · Certain Infectious and Parasitic Diseases
Code
A52
System
ICD-10-CM
Billable
No — use specific code
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 A52?
ICD-10-CM code A52 represents Late syphilis. It is a non-billable header code requiring a more specific subcategory in the Certain Infectious and Parasitic Diseases chapter, effective October 1, 2025 – September 30, 2026.
Is A52 billable?
No. A52 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is A52 in?
A52 belongs to the Certain Infectious and Parasitic Diseases chapter (A00–B99) of ICD-10-CM.
Related codes in the A52 category
A52.0
Cardiovascular and cerebrovascular syphilis
Non-billable
A52.1
Symptomatic neurosyphilis
Non-billable
A52.2
Asymptomatic neurosyphilis
Billable
A52.3
Neurosyphilis, unspecified
Billable
A52.7
Other symptomatic late syphilis
Non-billable
A52.8
Late syphilis, latent
Billable
A52.9
Late syphilis, unspecified
Billable
A52.00
Cardiovascular syphilis, unspecified
Billable
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