U.S. ICD-10-CM · FY 2027

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.

Code definition

Official description

J22

Unspecified acute lower respiratory infection

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where J22 sits

  1. 1

    Chapter 10

    Diseases of the respiratory system (J00-J99)

  2. 2

    Section

    Other acute lower respiratory infections (J20-J22)

  3. 3

    Category J22

    Unspecified acute lower respiratory infection

  4. 4

    Code J22

    Unspecified acute lower respiratory infection

Documentation details

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.

Transparency

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.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

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.

Ready to transform your clinical documentation?

Join Vero and see how effortless documentation can be.

Try for free

  • No credit card required

  • Cancel anytime