J91.8 – Pleural effusion in other conditions classified elsewhere

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

Billable code

ICD-10-CM code J91.8

Code: J91.8 (claims format: J918)
Description: Pleural effusion in other conditions classified elsewhere
Billable: Yes – valid for HIPAA-covered transactions
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
Parent codes: J91

Notes for J91.8

Code first:

underlying disease, such as:
filariasis (B74.0-B74.9)
influenza (J09.X2, J10.1, J11.1)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

J91 – Pleural effusion in conditions classified elsewhere

Excludes2 (not included here):

pleural effusion in heart failure (I50.-)
pleural effusion in systemic lupus erythematosus (M32.13)

Index terms for J91.8

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in J91

J91.0 – Malignant pleural effusionBillable

Frequently asked questions

What is ICD-10 code J91.8?

J91.8 is the ICD-10-CM code for pleural effusion in other conditions classified elsewhere, in the block J90-J94 (Other diseases of the pleura).

Is J91.8 a billable code?

Yes. J91.8 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does J91.8 belong to?

It belongs to category J91 – Pleural effusion in conditions classified elsewhere.

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.