ICD-10-CM
ICD-10 code for Chlamydia, chlamydial vulvovaginitis: A56.02
The ICD-10-CM index points "Chlamydia, chlamydial vulvovaginitis" to A56.02, Chlamydial vulvovaginitis. A56.02 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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More specific codes in A56
A header groups codes and is not billed. A billable code is one you can report.
- A56Other sexually transmitted chlamydial diseasesHeader
- A56.0Chlamydial infection of lower genitourinary tractHeader
- A56.00Chlamydial infection of lower genitourinary tract, unspecifiedBillable
- A56.01Chlamydial cystitis and urethritisBillable
- A56.02Chlamydial vulvovaginitisBillable
- A56.09Other chlamydial infection of lower genitourinary tractBillable
- A56.1Chlamydial infection of pelviperitoneum and other genitourinary organsHeader
- A56.11Chlamydial female pelvic inflammatory diseaseBillable
- A56.19Other chlamydial genitourinary infectionBillable
- A56.2Chlamydial infection of genitourinary tract, unspecifiedBillable
- A56.3Chlamydial infection of anus and rectumBillable
- A56.4Chlamydial infection of pharynxBillable
- A56.8Sexually transmitted chlamydial infection of other sitesBillable
Excludes1
Excludes1 means these codes are not reported together.
From A56. A note on a category applies to every code under it.
Excludes2
Excludes2 means the other condition can be reported with this one when both are documented.
From A56. A note on a category applies to every code under it.
Related conditions
Related pages
- A56.02 code detailsNotes, nearby codes, CMS-HCC group
- Category A56Every code under it
- Chapter 1Certain infectious and parasitic diseases
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Chlamydia, chlamydial vulvovaginitis?
The ICD-10-CM index points "Chlamydia, chlamydial vulvovaginitis" to A56.02, Chlamydial vulvovaginitis. A56.02 is a billable code.
Is A56.02 billable?
Yes. A56.02 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to A56.02?
The CDC tabular list gives 2 Excludes1 notes (not coded together), 2 Excludes2 notes (may be coded together when both are documented) for A56.02 and the categories above it. They are listed on this page.
What chapter is A56.02 in?
Chapter 1. Certain infectious and parasitic diseases.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.