C90 ICD-10-CM Code: Multiple myeloma and malignant plasma cell neoplasms
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
C90Multiple myeloma and malignant plasma cell neoplasms
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where C90 sits
- 1
Chapter 2
Neoplasms (C00-D49)
- 2
Section
Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)
- 3
Category C90
Multiple myeloma and malignant plasma cell neoplasms
- 4
Code C90
Multiple myeloma and malignant plasma cell neoplasms
More specific choices
Codes under C90
C90 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 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.
Transparency
Source and release
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 sourceCode-specific guidance
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 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 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.
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