C4A.7 — Merkel cell carcinoma of lower limb, including hip
Not billable
Is C4A.7 billable?
No — C4A.7 is a non-billable header code. C4A.7 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 C4A.7.
C4A.7 at a glance
| Code | C4A.7 |
|---|---|
| Description | Merkel cell carcinoma of lower limb, including hip |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is C4A.7 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to C4A.7. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Carcinoma › Merkel cell › hip (malignant)
- Carcinoma › Merkel cell › lower limb, including hip (malignant)
What codes fall under C4A.7? (3)
How long has C4A.7 existed?
C4A.7 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 C4A family? (9)
- C4A.0Merkel cell carcinoma of lip
- C4A.1Merkel cell carcinoma of eyelid, including canthusnot billable
- C4A.2Merkel cell carcinoma of ear and external auricular canalnot billable
- C4A.3Merkel cell carcinoma of other and unspecified parts of facenot billable
- C4A.4Merkel cell carcinoma of scalp and neck
- C4A.5Merkel cell carcinoma of trunknot billable
- C4A.6Merkel cell carcinoma of upper limb, including shouldernot billable
- C4A.8Merkel cell carcinoma of overlapping sites
- C4A.9Merkel cell carcinoma, unspecified