C41.9 – Malignant neoplasm of bone and articular cartilage, unspecified

ICD-10-CM 2027 diagnosis code · Malignant neoplasms of bone and articular cartilage

Billable code

ICD-10-CM code C41.9
Code
C41.9 (claims format: C419)
Description
Malignant neoplasm of bone and articular cartilage, unspecified
Short description
Malignant neoplasm of bone and articular cartilage, unsp
Billable
Yes – valid for HIPAA-covered transactions
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
2. Neoplasms (C00-D49)
Block
C40-C41 Malignant neoplasms of bone and articular cartilage
Parent codes
C41

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

C41 – Malignant neoplasm of bone and articular cartilage of other and unspecified sites

Excludes1 (not coded here):
  • malignant neoplasm of bones of limbs (C40.-)
  • malignant neoplasm of cartilage of ear (C49.0)
  • malignant neoplasm of cartilage of eyelid (C49.0)
  • malignant neoplasm of cartilage of larynx (C32.3)
  • malignant neoplasm of cartilage of limbs (C40.-)
  • malignant neoplasm of cartilage of nose (C30.0)

Block C40-C41

Includes:
  • malignant neoplasm of cartilage (articular) (joint)
  • malignant neoplasm of periosteum
Excludes1 (not coded here):
  • malignant neoplasm of bone marrow NOS (C96.9)
  • malignant neoplasm of synovia (C49.-)

Index terms for C41.9

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in C41

Frequently asked questions

What is ICD-10 code C41.9?

C41.9 is the ICD-10-CM code for malignant neoplasm of bone and articular cartilage, unspecified, in the block C40-C41 (Malignant neoplasms of bone and articular cartilage).

Is C41.9 a billable code?

Yes. C41.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does C41.9 belong to?

It belongs to category C41 – Malignant neoplasm of bone and articular cartilage of other and unspecified sites.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.