C40-C41

Malignant neoplasms of bone and articular cartilage

Malignant neoplasms of bone and articular cartilage (C40-C41) is a block within ICD-10-CM Chapter 2: Neoplasms. It holds 2 categories.

Includes

  • malignant neoplasm of cartilage (articular) (joint)
  • malignant neoplasm of periosteum

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

  • malignant neoplasm of bone marrow NOS (C96.9)
  • malignant neoplasm of synovia (C49.-)

Categories in C40-C41

Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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