J16.0Billable

Chlamydial pneumonia

Chapter
10. Diseases of the respiratory system
Category
J16
Effective date
October 1, 2026

Related codes in category J16

J16Pneumonia due to oth infectious organisms, NECJ16.8Pneumonia due to other specified infectious organismsYes

Frequently asked questions

What is ICD-10 code J16.0?

J16.0 is an ICD-10-CM diagnosis code for Chlamydial pneumonia.

Is J16.0 a billable code?

Yes. J16.0 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is J16.0 in?

J16.0 falls under Chapter 10: Diseases of the respiratory system.

When did J16.0 become effective?

J16.0 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to J16.0?

J16.0 belongs to category J16, which includes 2 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.