U.S. ICD-10-CM · FY 2027

C40 ICD-10-CM Code: Malignant neoplasm of bone and articular cartilage of limbs

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

C40

Malignant neoplasm of bone and articular cartilage of limbs

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where C40 sits

  1. 1

    Chapter 2

    Neoplasms (C00-D49)

  2. 2

    Section

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

  3. 3

    Category C40

    Malignant neoplasm of bone and articular cartilage of limbs

  4. 4

    Code C40

    Malignant neoplasm of bone and articular cartilage of limbs

More specific choices

Codes under C40

C40 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for C40.

Code first

No “code first” instruction is listed for C40.

Use additional code

  • code to identify major osseous defect, if applicable (M89.7-)

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for C40.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for C40.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code C40 mean?

C40 is the FY 2027 U.S. ICD-10-CM code for “Malignant neoplasm of bone and articular cartilage of limbs.”

Is C40 a billable or specific ICD-10-CM code?

No. C40 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is C40 located in ICD-10-CM?

C40 is listed in Chapter 2, Neoplasms (C00-D49), within Malignant neoplasms of bone and articular cartilage (C40-C41) (C40–C41), under category C40, Malignant neoplasm of bone and articular cartilage of limbs.

What coding notes are listed for C40?

No inclusion terms are listed for C40 in this reference record. No code-first instruction is listed. Additional-code instructions: code to identify major osseous defect, if applicable (M89.7-). No Excludes1 note is listed. No Excludes2 note is listed.

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