U.S. ICD-10-CM · FY 2027

C96.2 ICD-10-CM Code: Malignant mast cell neoplasm

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

Code definition

Official description

C96.2

Malignant mast cell neoplasm

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

Classification

Where C96.2 sits

  1. 1

    Chapter 2

    Neoplasms (C00-D49)

  2. 2

    Section

    Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)

  3. 3

    Category C96

    Other and unspecified malignant neoplasms of lymphoid, hematopoietic and related tissue

  4. 4

    Code C96.2

    Malignant mast cell neoplasm

More specific choices

Codes under C96.2

C96.2 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for C96.2.

Code first

No “code first” instruction is listed for C96.2.

Use additional code

No “use additional code” instruction is listed for C96.2.

Excludes1

Conditions that should not be reported together with this code.

  • indolent mastocytosis (D47.02)
  • mast cell leukemia (C94.30)
  • mastocytosis (congenital) (cutaneous) (Q82.2)

Excludes2

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

No Excludes2 note is listed for C96.2.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

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 C96.2 mean?

C96.2 is the FY 2027 U.S. ICD-10-CM code for “Malignant mast cell neoplasm.”

Is C96.2 a billable or specific ICD-10-CM code?

No. C96.2 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is C96.2 located in ICD-10-CM?

C96.2 is listed in Chapter 2, Neoplasms (C00-D49), within Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96) (C81–C96), under category C96, Other and unspecified malignant neoplasms of lymphoid, hematopoietic and related tissue.

What coding notes are listed for C96.2?

No inclusion terms are listed for C96.2 in this reference record. No code-first instruction is listed. Excludes1 notes: indolent mastocytosis (D47.02); mast cell leukemia (C94.30); mastocytosis (congenital) (cutaneous) (Q82.2). No Excludes2 note is listed.

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