A74.89 – Other chlamydial diseases
ICD-10-CM 2027 diagnosis code · Other diseases caused by chlamydiae
ICD-10-CM code
A74.89
- Code
A74.89(claims format:A7489)- Description
- Other chlamydial diseases
- 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
- A70-A74 Other diseases caused by chlamydiae
- Parent codes
- A74 › A74.8
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
A74 – Other diseases caused by chlamydiae
Excludes1 (not coded here):
Excludes2 (not included here):
- chlamydial pneumonia (J16.0)
Block A70-A74
Index terms for A74.89
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in A74.8
- A74.81 – Chlamydial peritonitisBillable
Frequently asked questions
What is ICD-10 code A74.89?
A74.89 is the ICD-10-CM code for other chlamydial diseases, in the block A70-A74 (Other diseases caused by chlamydiae).
Is A74.89 a billable code?
Yes. A74.89 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does A74.89 belong to?
It belongs to category A74 – Other diseases caused by chlamydiae.
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.