ICD-10-CM Tabular Index · Chapter 10 · FY 2026 J20–J22
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 2026. The section is organized into the 3 code ranges listed below.
✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
3
Code Ranges
17
Diagnosis Codes
15
Billable Codes
J20–J22
Code Range
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
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
Codes J20-J22 cover acute infections of the lower respiratory system, including different types of bronchitis and bronchiolitis caused by various bacterial and viral agents.
This range specifies acute bronchitis (J20) with subcodes identifying causes like Mycoplasma pneumoniae (J20.0), Haemophilus influenzae (J20.1), streptococcus (J20.2), and multiple viruses such as coxsackievirus (J20.3), parainfluenza virus (J20.4), respiratory syncytial virus (J20.5), rhinovirus (J20.6), and echovirus (J20.7). It also includes bronchitis from other organisms like SARS-CoV-2 and adenoviruses (J20.8), as well as unspecified acute bronchitis (J20.9). Acute bronchiolitis (J21) codes similarly specify viral causes like respiratory syncytial virus (J21.0), human metapneumovirus (J21.1), and others (J21.8), plus unspecified cases (J21.9). The range ends with J22 for unspecified acute lower respiratory infections, encompassing severe infections and COVID-19-related illness. These codes help healthcare professionals accurately document and differentiate lower respiratory infections by pathogen, facilitating precise diagnosis and treatment planning.
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 2026. 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.
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
acute and subacute bronchitis (with) bronchospasm
acute and subacute bronchitis (with) tracheitis
acute and subacute bronchitis (with) tracheobronchitis, acute
acute and subacute fibrinous bronchitis
acute and subacute membranous bronchitis
acute and subacute purulent bronchitis
acute and subacute septic bronchitis
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
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.
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
acute bronchiolitis with bronchospasm
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.
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Acute (lower) respiratory (tract) infection NOS
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
