10ICD Code Hub

C90.0

Header — not billable

Multiple myeloma

The ICD-10 code for multiple myeloma is C90.0.

C90.0 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.

Clinical notes

Excludes1 (not coded here)

An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).

  • solitary myeloma (C90.3-)
  • solitary plasmactyoma (C90.3-)

Also known as

Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.

  • Kahler's disease
  • Medullary plasmacytoma
  • Myelomatosis
  • Plasma cell myeloma

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Child codes under C90.0

Related codes in this category