J91 – Pleural effusion in conditions classified elsewhere

ICD-10-CM 2027 diagnosis code · Other diseases of the pleura

Non-billable header

ICD-10-CM code J91
Code
J91 (claims format: J91)
Description
Pleural effusion in conditions classified elsewhere
Billable
No – use a more specific code below
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
10. Diseases of the respiratory system (J00-J99)
Block
J90-J94 Other diseases of the pleura

Billable codes under J91

J91 is a header code and cannot be used on claims. Choose the most specific code:

Notes for J91

Excludes2 (not included here):
  • pleural effusion in heart failure (I50.-)
  • pleural effusion in systemic lupus erythematosus (M32.13)

Frequently asked questions

What is ICD-10 code J91?

J91 is the ICD-10-CM code for pleural effusion in conditions classified elsewhere, in the block J90-J94 (Other diseases of the pleura).

Is J91 a billable code?

No. J91 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.