C90.0 Multiple myeloma
⚠ Non-Billable
ICD-10-CM 2026
The ICD-10-CM code for Multiple myeloma is C90.0 (FY2026). It is a non-billable category code — select a more specific code below for claims.
Classification
- Chapter
- 2: Neoplasms (C00-D49)
- Section
- C81-C96: Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)
- Category C90
- 17 codes (12 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to C90.0:
- Myelomatosis
- Kahler's disease
- Myeloma (multiple)
- Plasmacytoma › medullary
- Myeloma (multiple) › plasma cell
- Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) › in (due to) › multiple myelomatosis
- Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) › in (due to) › myelomatosis (multiple)
- Arthropathy › in (due to) › multiple myeloma
Inclusion Terms
- Kahler's disease
- Medullary plasmacytoma
- Myelomatosis
- Plasma cell myeloma
Official Coding Guidelines
Tx of primary site (TOC entry)a. Admission/Encounter for treatment of primary site ............................................................. 33
Tx of secondary site (TOC entry)b. Admission/Encounter for treatment of secondary site .......................................................... 33
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026