ICD-10-CM > C00-D49 > C81-C96 > C90 > C90.0 C90.0 Multiple myeloma Non-Billable/Non-Specific Applicable To Kahler's diseaseMedullary plasmacytomaMyelomatosisPlasma cell myeloma Type 1 Excludes solitary myeloma (C90.3-)solitary plasmactyoma (C90.3-) Codes C90.00Multiple myeloma not having achieved remissionC90.01Multiple myeloma in remissionC90.02Multiple myeloma in relapse