J91: Pleural effusion in conditions classified elsewhere
Codes under J91 (Pleural effusion in conditions classified elsewhere). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| J91.0 | Malignant pleural effusion | ✓ |
| J91.0 | Malignant pleural effusion | ✓ |
| J91.8 | Pleural effusion in other conditions classified elsewhere | ✓ |
| J91.8 | Pleural effusion in other conditions classified elsewhere | ✓ |
Frequently asked questions
What is ICD-10-CM code J91?
J91 is an ICD-10-CM category covering Pleural effusion in conditions classified elsewhere. It contains 4 more specific diagnosis codes, 4 of which are billable.
Is J91 a billable code?
No — J91 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example J91.0 — Malignant pleural effusion). 4 of the 4 codes under J91 are billable.
What codes fall under J91?
J91 includes J91.0, J91.0, J91.8, J91.8. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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