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C90.00 — Multiple myeloma not having achieved remission
C90.00
What this code means
Multiple myeloma is a cancer of plasma cells in the bone marrow, affecting blood, bones and kidneys.
Also called: multiple myeloma, myeloma.
When this code is used
Used for multiple myeloma that has not achieved remission.
Where it sits in ICD-10-CM
Code C90.00 belongs to Chapter 2: Neoplasms, which covers codes C00–D49 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Learn more about this condition
Related symptoms
Watch: related videos
Frequently asked questions
What is ICD-10-CM code C90.00?
C90.00 is the ICD-10-CM diagnosis code for “Multiple myeloma not having achieved remission”. Multiple myeloma is a cancer of plasma cells in the bone marrow, affecting blood, bones and kidneys.
When is code C90.00 used?
Used for multiple myeloma that has not achieved remission. It belongs to Chapter 2 of ICD-10-CM (Neoplasms).
This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.