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ICD-10-CM category

C40: Malignant neoplasm of bone and articular cartilage of limbs

48 subcodes · 36 billable · Look up any code with the ICD-10 search

Codes under C40 (Malignant neoplasm of bone and articular cartilage of limbs). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

CodeDescriptionBillable
C40.0 Malignant neoplasm of scapula and long bones of upper limb —
C40.0 Malignant neoplasm of scapula and long bones of upper limb —
C40.00 Malignant neoplasm of scapula and long bones of unspecified upper limb ✓
C40.00 Malignant neoplasm of scapula and long bones of unspecified upper limb ✓
C40.01 Malignant neoplasm of scapula and long bones of right upper limb ✓
C40.01 Malignant neoplasm of scapula and long bones of right upper limb ✓
C40.1 Malignant neoplasm of short bones of upper limb —
C40.1 Malignant neoplasm of short bones of upper limb —
C40.02 Malignant neoplasm of scapula and long bones of left upper limb ✓
C40.02 Malignant neoplasm of scapula and long bones of left upper limb ✓
C40.2 Malignant neoplasm of long bones of lower limb —
C40.2 Malignant neoplasm of long bones of lower limb —
C40.3 Malignant neoplasm of short bones of lower limb —
C40.3 Malignant neoplasm of short bones of lower limb —
C40.8 Malignant neoplasm of overlapping sites of bone and articular cartilage of limb —
C40.8 Malignant neoplasm of overlapping sites of bone and articular cartilage of limb —
C40.9 Malignant neoplasm of unspecified bones and articular cartilage of limb —
C40.9 Malignant neoplasm of unspecified bones and articular cartilage of limb —
C40.10 Malignant neoplasm of short bones of unspecified upper limb ✓
C40.10 Malignant neoplasm of short bones of unspecified upper limb ✓
C40.11 Malignant neoplasm of short bones of right upper limb ✓
C40.11 Malignant neoplasm of short bones of right upper limb ✓
C40.12 Malignant neoplasm of short bones of left upper limb ✓
C40.12 Malignant neoplasm of short bones of left upper limb ✓
C40.20 Malignant neoplasm of long bones of unspecified lower limb ✓
C40.20 Malignant neoplasm of long bones of unspecified lower limb ✓
C40.21 Malignant neoplasm of long bones of right lower limb ✓
C40.21 Malignant neoplasm of long bones of right lower limb ✓
C40.22 Malignant neoplasm of long bones of left lower limb ✓
C40.22 Malignant neoplasm of long bones of left lower limb ✓
C40.30 Malignant neoplasm of short bones of unspecified lower limb ✓
C40.30 Malignant neoplasm of short bones of unspecified lower limb ✓
C40.31 Malignant neoplasm of short bones of right lower limb ✓
C40.31 Malignant neoplasm of short bones of right lower limb ✓
C40.32 Malignant neoplasm of short bones of left lower limb ✓
C40.32 Malignant neoplasm of short bones of left lower limb ✓
C40.80 Malignant neoplasm of overlapping sites of bone and articular cartilage of unspecified limb ✓
C40.80 Malignant neoplasm of overlapping sites of bone and articular cartilage of unspecified limb ✓
C40.81 Malignant neoplasm of overlapping sites of bone and articular cartilage of right limb ✓
C40.81 Malignant neoplasm of overlapping sites of bone and articular cartilage of right limb ✓
C40.82 Malignant neoplasm of overlapping sites of bone and articular cartilage of left limb ✓
C40.82 Malignant neoplasm of overlapping sites of bone and articular cartilage of left limb ✓
C40.90 Malignant neoplasm of unspecified bones and articular cartilage of unspecified limb ✓
C40.90 Malignant neoplasm of unspecified bones and articular cartilage of unspecified limb ✓
C40.91 Malignant neoplasm of unspecified bones and articular cartilage of right limb ✓
C40.91 Malignant neoplasm of unspecified bones and articular cartilage of right limb ✓
C40.92 Malignant neoplasm of unspecified bones and articular cartilage of left limb ✓
C40.92 Malignant neoplasm of unspecified bones and articular cartilage of left limb ✓

Frequently asked questions

What is ICD-10-CM code C40?

C40 is an ICD-10-CM category covering Malignant neoplasm of bone and articular cartilage of limbs. It contains 48 more specific diagnosis codes, 36 of which are billable.

Is C40 a billable code?

No — C40 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example C40.0 — Malignant neoplasm of scapula and long bones of upper limb). 36 of the 48 codes under C40 are billable.

What codes fall under C40?

C40 includes C40.0, C40.0, C40.00, C40.00, C40.01, plus 43 more. See the full list with descriptions and billable status above.

More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees

Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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