A53 ICD-10-CM Code: Other and unspecified syphilis
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
A53Other and unspecified syphilis
ICD-10-CM diagnosis code · United States clinical modification
Where A53 sits
- 1
Chapter 1
Certain infectious and parasitic diseases (A00-B99)
- 2
Section
Infections with a predominantly sexual mode of transmission (A50-A64)
- 3
Category A53
Other and unspecified syphilis
- 4
Code A53
Other and unspecified syphilis
Codes under A53
A53 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Notes for this code
Inclusion terms
No inclusion terms are listed for A53.
Code first
No “code first” instruction is listed for A53.
Use additional code
No “use additional code” instruction is listed for A53.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for A53.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for A53.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code A53 mean?
A53 is the FY 2027 U.S. ICD-10-CM code for “Other and unspecified syphilis.”
Is A53 a billable or specific ICD-10-CM code?
No. A53 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is A53 located in ICD-10-CM?
A53 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Infections with a predominantly sexual mode of transmission (A50-A64) (A50–A64), under category A53, Other and unspecified syphilis.
What coding notes are listed for A53?
No inclusion terms are listed for A53 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.