Other acute lower respiratory infections (J20-J22) ICD-10-CM
The J20–J22 section covers other acute lower respiratory infections with 17 ICD-10-CM diagnosis codes, of which 15 are billable in fiscal year 2027. The section is organized into the 3 code ranges listed below.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- chronic obstructive pulmonary disease with acute lower respiratory infection J44.0
Code Ranges in This Section 3 ranges · 17 codes
| Code Range | Title | Codes | Billable |
|---|---|---|---|
| J20 | Acute bronchitis (J20) | 11 | 10 |
| J21 | Acute bronchiolitis (J21) | 5 | 4 |
| J22 | Unspecified acute lower respiratory infection (J22) | 1 | 1 |
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the J20–J22 Code Range
Acute bronchitis involves inflammation and swelling of the larger breathing tubes. Acute bronchiolitis involves inflammation of smaller airways.
J20 groups acute bronchitis by the organism causing it, with subdivisions for other specified organisms and unspecified cases. J21 organizes acute bronchiolitis by organism in the same way. J22 identifies an acute lower respiratory infection when its type is unspecified.
Questions About This Page
How many codes are in the J20-J22 range?
The J20-J22 range contains 17 ICD-10-CM diagnosis codes in FY 2027. 15 of them are billable, and the rest are category headers that organize the section.
What conditions does J20-J22 cover?
The range covers other acute lower respiratory infections. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
