J22 ICD-10-CA code: Unspecified acute lower respiratory infection
J22 is the ICD-10-CA code for “Unspecified acute lower respiratory infection” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
J22Unspecified acute lower respiratory infection
Short description: Unspec acute lower respiratory infection
ICD-10-CA · Canada
Index terms
Entries in CIHI’s alphabetical index that lead to J22. Searching the index by the condition the note names is how coders reach this code.
- Infection, infected (opportunistic), chest
- Infection, infected (opportunistic), respiratory (tract) NEC, acute
- Infection, infected (opportunistic), respiratory (tract) NEC, lower (acute)
Notes for J22
As CIHI prints them, with any note J22 takes from the headings above it.
Includes
- Acute (lower) respiratory (tract) infection NOS
Excludes
Conditions classified elsewhere.
- Respiratory infection NOS (J98.7)upper respiratory infection (acute) (J06.9)
- Chronic obstructive pulmonary disease with acute:• exacerbation NOS (J44.1)• lower respiratory infection (J44.0)From J20-J22 Other acute lower respiratory infections
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 10: Diseases of the respiratory system (J00-J99)
Note
- When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g., tracheobronchitis to bronchitis in J40).From Chapter 10: Diseases of the respiratory system (J00-J99)
Where J22 sits
- 1ChapterChapter 10: Diseases of the respiratory system (J00-J99)
- 2Block J20-J22Other acute lower respiratory infections
- 3Valid code J22Unspecified acute lower respiratory infection
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code J22 mean?
J22 is the ICD-10-CA code for “Unspecified acute lower respiratory infection” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is J22 in ICD-10-CA?
J22 sits under J20-J22 Other acute lower respiratory infections, within Chapter 10: Diseases of the respiratory system (J00-J99).
What coding notes apply to J22?
ICD-10-CA lists Includes, Excludes, Note notes for J22, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.