J91.8

Billable code

Pleural effusion in other conditions classified elsewhere

The ICD-10 code for pleural effusion in other conditions classified elsewhere is J91.8.

Clinical notes

Code first

This code represents a manifestation of an underlying disease. Coding convention requires the underlying (etiology) code to be sequenced first, with this code listed second.

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

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•This code represents a manifestation. Documentation should identify the underlying condition, which must be coded first.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

Related codes in this category

J91.0Malignant pleural effusion
J91.8Pleural effusion in other conditions classified elsewhere

ICD-9-CM equivalent

Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.

5119Approximate match

View full ICD-10 → ICD-9 crosswalk →

Associated MS-DRGs

J91.8 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.

Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.