J40-J47 ICD-10-CA block: Chronic lower respiratory diseases
J40-J47 isn’t a code on its own. Choose one of the 23 codes beneath it, the one the documentation supports.
Official description
J40-J47Chronic lower respiratory diseases (J40-J47)
ICD-10-CA · Canada
Codes in J40-J47
J40-J47 isn’t a code on its own. Open the group that matches what the note documents.
Notes for J40-J47
As CIHI prints them, with any note J40-J47 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Cystic fibrosis (E84.-)respiratory infection NOS (J98.7)
- 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 J40-J47 sits
- 1ChapterChapter 10: Diseases of the respiratory system (J00-J99)
- 2Block J40-J47Chronic lower respiratory diseases
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
Is J40-J47 a valid ICD-10-CA code?
No. J40-J47 (Chronic lower respiratory diseases) is a block heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 23 codes; record the one the documentation supports.
Where is J40-J47 in ICD-10-CA?
J40-J47 sits under Chapter 10: Diseases of the respiratory system (J00-J99).
What coding notes apply to J40-J47?
ICD-10-CA lists Excludes, Note notes for J40-J47, 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.
Codes beside J40-J47
J00-J06Acute upper respiratory infectionsJ09-J18Influenza and pneumoniaJ20-J22Other acute lower respiratory infectionsJ30-J39Other diseases of upper respiratory tractJ60-J70Lung diseases due to external agentsJ80-J84Other respiratory diseases principally affecting the interstitiumJ85-J86Suppurative and necrotic conditions of lower respiratory tractJ90-J94Other diseases of pleuraJ95-J99Other diseases of the respiratory system