DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Block · Chapter 2

C40-C41 Malignant neoplasms of bone and articular cartilage (C40-C41)

Block C40-C41 groups 2 categories with 24 billable codes in FY2027.

Where it sits

  1. Chapter 2 Neoplasms (C00-D49)
  2. C40-C41 Malignant neoplasms of bone and articular cartilage (C40-C41)

Neighbouring blocks

Categories
2
Billable codes
24
CC codes
24
MCC codes
0
HCC V28 codes
24
New FY2027
0

Categories in C40-C41

  • C40

    Malignant neoplasm of bone and articular cartilage of limbs

    Adamantinomatibial → C40.2-

    • 18 billable codes
    • 18 CC
    • 18 with HCC
  • C41

    Malignant neoplasm of bone and articular cartilage of other and unspecified sites

    Odontosarcoma, ameloblastic → C41.1

    • 6 billable codes
    • 6 CC
    • 6 with HCC

Index main terms

  • Adamantinoma → C40, C41 (7 entries)
  • Ameloblastoma → C40, C41 (7 entries)
  • Carcinoma (malignant) → C41 (6 entries)
  • Fibrosarcoma → C41 (4 entries)
  • Sarcoma (of) → C41 (4 entries)
  • Odontosarcoma, ameloblastic → C41 (2 entries)
  • Tumor → C41 (2 entries)
  • Osteitis → C41 (1 entry)

Block instructions

Includes

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

Excludes1

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

Notes that also apply

Chapter 2 instructions (Notes 8): printed on the chapter 2 page.