Pleural effusion in conditions classified elsewhere (J91) ICD-10-CM
The J91 code range covers pleural effusion in conditions classified elsewhere with 3 ICD-10-CM diagnosis codes. 2 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the J91 Range 3 codes · 2 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the J91 range.
Pleural Effusion, Malignant
Presence of fluid in the PLEURAL CAVITY as a complication of malignant disease. Malignant pleural effusions often contain actual malignant cells.
About the J91 Code Range
Pleural effusion appears here when it occurs with another condition. This category sits among diseases of the pleura in the respiratory system.
J91.0 identifies malignant pleural effusion, meaning cancer-related. J91.8 identifies pleural effusion in other conditions classified elsewhere.
Questions About This Page
How many billable codes are in the J91 range?
Of the 3 codes in this range, 2 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the J91 range classify?
The range classifies pleural effusion in conditions classified elsewhere. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
