A50.5 – Other late congenital syphilis, symptomatic
ICD-10-CM 2027 diagnosis code · Infections with a predominantly sexual mode of transmission
- Code
A50.5(claims format:A505)- Description
- Other late congenital syphilis, symptomatic
- Billable
- No – use a more specific code below
- 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
- A50
Billable codes under A50.5
A50.5 is a header code and cannot be used on claims. Choose the most specific code:
- A50.51 – Clutton's jointsBillable
- A50.52 – Hutchinson's teethBillable
- A50.53 – Hutchinson's triadBillable
- A50.54 – Late congenital cardiovascular syphilisBillable
- A50.55 – Late congenital syphilitic arthropathyBillable
- A50.56 – Late congenital syphilitic osteochondropathyBillable
- A50.57 – Syphilitic saddle noseBillable
- A50.59 – Other late congenital syphilis, symptomaticBillable
Notes for A50.5
- Any congenital syphilitic condition specified as late or manifest two years or more after birth.
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block A50-A64
- human immunodeficiency virus [HIV] disease (B20)
Related codes in A50
- A50.0 – Early congenital syphilis, symptomaticHeader
- A50.1 – Early congenital syphilis, latentBillable
- A50.2 – Early congenital syphilis, unspecifiedBillable
- A50.3 – Late congenital syphilitic oculopathyHeader
- A50.4 – Late congenital neurosyphilis [juvenile neurosyphilis]Header
- A50.6 – Late congenital syphilis, latentBillable
- A50.7 – Late congenital syphilis, unspecifiedBillable
- A50.9 – Congenital syphilis, unspecifiedBillable
Frequently asked questions
What is ICD-10 code A50.5?
A50.5 is the ICD-10-CM code for other late congenital syphilis, symptomatic, in the block A50-A64 (Infections with a predominantly sexual mode of transmission).
Is A50.5 a billable code?
No. A50.5 is a header code with more specific child codes; report one of the billable codes listed above.
What category does A50.5 belong to?
It belongs to category A50 – Congenital 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.