J91 ICD-10-CA code: Pleural effusion in conditions classified elsewhere
J91 is the ICD-10-CA code for “Pleural effusion in conditions classified elsewhere” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
J91Pleural effusion in conditions classified elsewhere
Short description: Pleural effusion in conditions cl/e
ICD-10-CA · Canada
Notes for J91
As CIHI prints them, with any note J91 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- 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 J91 sits
- 1ChapterChapter 10: Diseases of the respiratory system (J00-J99)
- 2Block J90-J94Other diseases of pleura
- 3Valid code J91Pleural effusion in conditions classified elsewhere
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 J91 mean?
J91 is the ICD-10-CA code for “Pleural effusion in conditions classified elsewhere” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is J91 in ICD-10-CA?
J91 sits under J90-J94 Other diseases of pleura, within Chapter 10: Diseases of the respiratory system (J00-J99).
What coding notes apply to J91?
ICD-10-CA lists Note, Excludes notes for J91, 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.