Is ICD-10-CM code C90 billable?

No, C90 (Multiple myeloma and malignant plasma cell neoplasms) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code C90 belong to?

C90 belongs to Chapter 2 of the ICD-10-CM tabular list: C00–D49 (Neoplasms).

C90

Non-Billable

ChapterC00–D49

Rankcategory

Description

Multiple myeloma and malignant plasma cell neoplasms

About ICD-10-CM code C90

C90 is the ICD-10-CM diagnosis code for Multiple myeloma and malignant plasma cell neoplasms. It sits in C00-D49 Neoplasms, within Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96). C90 is not billable on its own, coders must choose one of its more specific child codes instead.

Use a more specific code (0 billable, 4 non-billable)

C90.0Multiple myelomahas subcodes C90.1Plasma cell leukemiahas subcodes C90.2Extramedullary plasmacytomahas subcodes C90.3Solitary plasmacytomahas subcodes

Metadata & Insights

•Non-billable category (requires more specific sub-code).
•Chapter 2: Neoplasms (C00-D49).

C81-C96 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

Kaposi's sarcoma of lymph nodes (C46.3)
secondary and unspecified neoplasm of lymph nodes (C77.-)
secondary neoplasm of bone marrow (C79.52)
secondary neoplasm of spleen (C78.89)

Instructional Notes

Excludes1(Not coded here. Use a different code.)

personal history of other malignant neoplasms of lymphoid, hematopoietic and related tissues (Z85.79)

Clinical Hierarchy

BillableHas subcodes

CH2Neoplasms (C00-D49)

C81-C96Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)

C90Multiple myeloma and malignant plasma cell neoplasmsNot billable

C90.0Multiple myelomaSubcodes

C90.1Plasma cell leukemiaSubcodes

C90.2Extramedullary plasmacytomaSubcodes

C90.3Solitary plasmacytomaSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to C90:

blockC81-C96

Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)

View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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