ICD-10 Code C90.01 – Multiple myeloma in remission (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C90.01 – Multiple myeloma in remission
What it is
C90.01 identifies a history of multiple myeloma that is currently in remission. Use it when the malignancy is no longer active, but the diagnosis remains clinically relevant.
Clinical signs
Clinical features vary; refer to documentation. Records may note remission status after prior myeloma treatment, with no current evidence of active disease.
When to use this code
Use this code when the provider documents multiple myeloma as “in remission,” “in complete remission,” or similar wording. It fits follow-up care when the condition is not active but still affects ongoing management.
Code from the current documentation, not from past history alone. If the note only says “history of multiple myeloma” without remission status, check documentation.
Do not use for
Do not use C90.01 for active multiple myeloma or for unspecified history without remission. Check documentation if the record describes relapse, progression, or uncertain status.
Coding tip
Link C90.01 only to explicit provider documentation of remission; if wording is unclear, query for the current disease status.