C40.9 — Malignant neoplasm of unspecified bones and articular cartilage of limb
Is C40.9 billable?
No — C40.9 is a non-billable header code. C40.9 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath C40.9.
C40.9 at a glance
| Code | C40.9 |
|---|---|
| Description | Malignant neoplasm of unspecified bones and articular cartilage of limb |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is C40.9 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to C40.9. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Ameloblastoma › long bones
Excludes1 — never code together — inherited from C40-C41
The conditions below can never be reported together with C40.9 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from C40
Report an additional code alongside C40.9 to fully describe the condition. C40.9 is sequenced first.
- code to identify major osseous defect, if applicable (M89.7-)
What codes fall under C40.9? (3)
How long has C40.9 existed?
C40.9 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the C40 family? (5)
- C40.0Malignant neoplasm of scapula and long bones of upper limbnot billable
- C40.1Malignant neoplasm of short bones of upper limbnot billable
- C40.2Malignant neoplasm of long bones of lower limbnot billable
- C40.3Malignant neoplasm of short bones of lower limbnot billable
- C40.8Malignant neoplasm of overlapping sites of bone and articular cartilage of limbnot billable