C44.51 – Basal cell carcinoma of skin of trunk

ICD-10-CM 2027 diagnosis code · Melanoma and other malignant neoplasms of skin

Non-billable header

ICD-10-CM code C44.51
Code
C44.51 (claims format: C4451)
Description
Basal cell carcinoma of skin of trunk
Billable
No – use a more specific code below
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
2. Neoplasms (C00-D49)
Block
C43-C44 Melanoma and other malignant neoplasms of skin
Parent codes
C44 › C44.5

Billable codes under C44.51

C44.51 is a header code and cannot be used on claims. Choose the most specific code:

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

C44 – Other and unspecified malignant neoplasm of skin

Includes:
  • malignant neoplasm of sebaceous glands
  • malignant neoplasm of sweat glands
Excludes1 (not coded here):
  • 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.-)

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

Excludes1 (not coded here):

Related codes in C44.5

Frequently asked questions

What is ICD-10 code C44.51?

C44.51 is the ICD-10-CM code for basal cell carcinoma of skin of trunk, in the block C43-C44 (Melanoma and other malignant neoplasms of skin).

Is C44.51 a billable code?

No. C44.51 is a header code with more specific child codes; report one of the billable codes listed above.

What category does C44.51 belong to?

It belongs to category C44 – Other and unspecified malignant neoplasm of skin.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.