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J91

Non-billable

Pleural effusion in conditions classified elsewhere

J91 is the ICD-10-CM code for Pleural effusion in conditions classified elsewhere. It is a non-billable category code — use a more specific child code such as J91.0 for billing.

Status
Header (non-billable)
Chapter
J00-J99
Subcodes
2
Edition
FY2026

J00-J99 Diseases of the respiratory system

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". It falls under J00-J99 Diseases of the respiratory system.
Is J91 a billable code?
No — J91 is a non-billable header code. Use a more specific child code (such as J91.0) for billing.
What are the subcodes of J91?
J91 has 2 more specific child codes, including J91.0, J91.8.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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