A56.0 — Chlamydial infection of lower genitourinary tract
Is A56.0 billable?
No — A56.0 is a non-billable header code. A56.0 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 4 billable codes beneath A56.0.
A56.0 at a glance
| Code | A56.0 |
|---|---|
| Description | Chlamydial infection of lower genitourinary tract |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from A50-A64
The conditions below can never be reported together with A56.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from A56
The conditions below can never be reported together with A56.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from Chapter 1
Report an additional code alongside A56.0 to fully describe the condition. A56.0 is sequenced first.
- code to identify resistance to antimicrobial drugs (Z16.-)
Excludes2 — not included here — inherited from Chapter 1
The conditions below are not part of A56.0, but a patient may have both at the same time. When documentation supports it, A56.0 and the excluded code may both be reported.
- carrier or suspected carrier of infectious disease (Z22.-)
- certain localized infections - see body system-related chapters
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
Excludes2 — not included here — inherited from A50-A64
The conditions below are not part of A56.0, but a patient may have both at the same time. When documentation supports it, A56.0 and the excluded code may both be reported.
- human immunodeficiency virus [HIV] disease (B20)
Excludes2 — not included here — inherited from A56
The conditions below are not part of A56.0, but a patient may have both at the same time. When documentation supports it, A56.0 and the excluded code may both be reported.
What codes fall under A56.0? (4)
How long has A56.0 existed?
A56.0 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.