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C90 ICD-10-CM Code: Multiple myeloma and malignant plasma cell neoplasms

C90 isn’t billable on its own. Choose one of the 12 billable codes beneath it, the one the documentation supports.

Official description

C90

Multiple myeloma and malignant plasma cell neoplasms

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

Billable codes under C90

C90 can’t be reported on its own. Choose the code below that matches what the note documents.

Where C90 sits

  1. 1

    Chapter 2

    Neoplasms (C00-D49)

  2. 2

    Section

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

  3. 3

    Category C90

    Multiple myeloma and malignant plasma cell neoplasms

  4. 4

    Code C90

    Multiple myeloma and malignant plasma cell neoplasms

Notes for this code

Inclusion terms

No inclusion terms are listed for C90.

Code first

No “code first” instruction is listed for C90.

Use additional code

No “use additional code” instruction is listed for C90.

Excludes1

Conditions that should not be reported together with this code.

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

Excludes2

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

No Excludes2 note is listed for C90.

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

Frequently asked questions

What does ICD-10-CM code C90 mean?

C90 is the FY 2027 U.S. ICD-10-CM code for “Multiple myeloma and malignant plasma cell neoplasms.”

Is C90 a billable or specific ICD-10-CM code?

No. C90 has 12 billable codes beneath it in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is C90 located in ICD-10-CM?

C90 is listed in Chapter 2, Neoplasms (C00-D49), within Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96) (C81–C96), under category C90, Multiple myeloma and malignant plasma cell neoplasms.

What coding notes are listed for C90?

No inclusion terms are listed for C90 in this reference record. No code-first instruction is listed. Excludes1 notes: personal history of other malignant neoplasms of lymphoid, hematopoietic and related tissues (Z85.79). No Excludes2 note is listed.