U.S. ICD-10-CM · FY 2027

J91.0 ICD-10-CM Code: Malignant pleural effusion

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

J91.0

Malignant pleural effusion

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where J91.0 sits

  1. 1

    Chapter 10

    Diseases of the respiratory system (J00-J99)

  2. 2

    Section

    Other diseases of the pleura (J90-J94)

  3. 3

    Category J91

    Pleural effusion in conditions classified elsewhere

  4. 4

    Code J91.0

    Malignant pleural effusion

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for J91.0.

Code first

  • underlying neoplasm (C00-D49)

Use additional code

No “use additional code” instruction is listed for J91.0.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for J91.0.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for J91.0.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code J91.0 mean?

J91.0 is the FY 2027 U.S. ICD-10-CM code for “Malignant pleural effusion.”

Is J91.0 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, J91.0 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is J91.0 located in ICD-10-CM?

J91.0 is listed in Chapter 10, Diseases of the respiratory system (J00-J99), within Other diseases of the pleura (J90-J94) (J90–J94), under category J91, Pleural effusion in conditions classified elsewhere.

What coding notes are listed for J91.0?

No inclusion terms are listed for J91.0 in this reference record. Code-first instructions: underlying neoplasm (C00-D49). No Excludes1 note is listed. No Excludes2 note is listed.

Keep exploring

Related J91 codes

J91.8

Pleural effusion in other conditions classified elsewhere

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