ICDcodes.org
FY2027

C96.2 — Malignant mast cell neoplasm

Not billable

Is C96.2 billable?

No — C96.2 is a non-billable header code. C96.2 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 4 billable codes beneath C96.2.

C96.2 at a glance

CodeC96.2
DescriptionMalignant mast cell neoplasm
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Excludes1 — never code together

The conditions below can never be reported together with C96.2 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

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

Excludes1 — never code together — inherited from C96

The conditions below can never be reported together with C96.2 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • personal history of other malignant neoplasms of lymphoid, hematopoietic and related tissues (Z85.79)

Excludes2 — not included here — inherited from C81-C96

The conditions below are not part of C96.2, but a patient may have both at the same time. When documentation supports it, C96.2 and the excluded code may both be reported.

  • Kaposi's sarcoma of lymph nodes (C46.3)
  • secondary and unspecified neoplasm of lymph nodes (C77.-)
  • secondary neoplasm of bone marrow (C79.52)
  • secondary neoplasm of spleen (C78.89)

What codes fall under C96.2? (4)

How long has C96.2 existed?

C96.2 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

  • FY2018: C96.2 stopped being billable
Description changes
  • FY2018
    Malignant mast cell tumor
    Malignant mast cell neoplasm

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which codes are confused with C96.2?

ICD-10-CM declares these codes mutually exclusive with C96.2 — exactly one of each pair can be correct for a given encounter.

What other codes are in the C96 family? (7)