A52.05 – Other cerebrovascular syphilis
ICD-10-CM 2027 diagnosis code · Infections with a predominantly sexual mode of transmission
ICD-10-CM code
A52.05
- Code
A52.05(claims format:A5205)- Description
- Other cerebrovascular syphilis
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- A50-A64 Infections with a predominantly sexual mode of transmission
- Parent codes
- A52 › A52.0
Notes for A52.05
Applicable to:
- Syphilitic cerebral aneurysm (ruptured) (non-ruptured)
- Syphilitic cerebral thrombosis
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block A50-A64
Excludes1 (not coded here):
Excludes2 (not included here):
- human immunodeficiency virus [HIV] disease (B20)
Index terms for A52.05
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Neurosyphilis, aneurysm
- Neurosyphilis, vascular
- Neurosyphilis, thrombosis
- Neurosyphilis, hemorrhagic
- Aneurysm, brain, syphilitic
- Syphilis, syphilitic, vascular, brain
- Syphilis, syphilitic, cerebrovascular
- Syphilis, syphilitic, cerebral, thrombosis
- Aneurysm, central nervous system, syphilitic
- Aneurysm, syphilitic, central nervous system
- Angiopathia, angiopathy, retinae syphilitica
- Thrombosis, thrombotic, brain, due to syphilis
- Rupture, ruptured, brain, aneurysm, syphilitic
- Hemorrhage, hemorrhagic, brain, due to, syphilis
- Aneurysm, carotid artery, syphilitic, intracranial
- Syphilis, syphilitic, central nervous system, aneurysm
- Syphilis, syphilitic, central nervous system, vascular
- Syphilis, syphilitic, aneurysm, central nervous system
Related codes in A52.0
- A52.00 – Cardiovascular syphilis, unspecifiedBillable
- A52.01 – Syphilitic aneurysm of aortaBillable
- A52.02 – Syphilitic aortitisBillable
- A52.03 – Syphilitic endocarditisBillable
- A52.04 – Syphilitic cerebral arteritisBillable
- A52.06 – Other syphilitic heart involvementBillable
- A52.09 – Other cardiovascular syphilisBillable
Frequently asked questions
What is ICD-10 code A52.05?
A52.05 is the ICD-10-CM code for other cerebrovascular syphilis, in the block A50-A64 (Infections with a predominantly sexual mode of transmission).
Is A52.05 a billable code?
Yes. A52.05 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does A52.05 belong to?
It belongs to category A52 – Late syphilis.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.