J22 ICD-10-CM Code: Unspecified acute lower respiratory infection
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
J22Unspecified acute lower respiratory infection
ICD-10-CM diagnosis code · United States clinical modification
Where J22 sits
- 1
Chapter 10
Diseases of the respiratory system (J00-J99)
- 2
Section
Other acute lower respiratory infections (J20-J22)
- 3
Category J22
Unspecified acute lower respiratory infection
- 4
Code J22
Unspecified acute lower respiratory infection
Notes for this code
Inclusion terms
- Acute (lower) respiratory (tract) infection NOS
Code first
No “code first” instruction is listed for J22.
Use additional code
No “use additional code” instruction is listed for J22.
Excludes1
Conditions that should not be reported together with this code.
- upper respiratory infection (acute) (J06.9)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for J22.
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 J22 mean?
J22 is the FY 2027 U.S. ICD-10-CM code for “Unspecified acute lower respiratory infection.”
Is J22 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, J22 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is J22 located in ICD-10-CM?
J22 is listed in Chapter 10, Diseases of the respiratory system (J00-J99), within Other acute lower respiratory infections (J20-J22) (J20–J22), under category J22, Unspecified acute lower respiratory infection.
What coding notes are listed for J22?
Its listed inclusion terms are Acute (lower) respiratory (tract) infection NOS. No code-first instruction is listed. Excludes1 notes: upper respiratory infection (acute) (J06.9). No Excludes2 note is listed.