C44.5 — Other and unspecified malignant neoplasm of skin of trunk

Not billable

Is C44.5 billable?

No — C44.5 is a non-billable header code. C44.5 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 12 billable codes beneath C44.5.

Billable codes under this header

C44.5 at a glance

Code	C44.5
Description	Other and unspecified malignant neoplasm of skin of trunk
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Excludes1 — never code together

The conditions below can never be reported together with C44.5 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

anus NOS (C21.0)
scrotum (C63.2)

Excludes1 — never code together — inherited from C44

The conditions below can never be reported together with C44.5 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

Kaposi's sarcoma of skin (C46.0)
malignant melanoma of skin (C43.-)
malignant neoplasm of skin of genital organs (C51-C52, C60.-, C63.2)
Merkel cell carcinoma (C4A.-)

What codes fall under C44.5? (4)

How long has C44.5 existed?

C44.5 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.

Which codes are confused with C44.5?

ICD-10-CM declares these codes mutually exclusive with C44.5 — exactly one of each pair can be correct for a given encounter.