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

Version 2023
ICD-10:C44.5
Short Description:Other and unspecified malignant neoplasm of skin of trunk
Long Description:Other and unspecified malignant neoplasm of skin of trunk
Status: Not Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Neoplasms (C00–D48)
    • Melanoma and other malignant neoplasms of skin (C43-C44)
      • Other and unspecified malignant neoplasm of skin (C44)

C44.5 is a non-specific and non-billable ICD-10 code code, consider using a code with a higher level of specificity for a diagnosis of other and unspecified malignant neoplasm of skin of trunk. The code is not specific and is NOT valid for the year 2023 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Unspecified diagnosis codes like C44.5 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Specific Coding for Other and unspecified malignant neoplasm of skin of trunk

Non-specific codes like C44.5 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for other and unspecified malignant neoplasm of skin of trunk:

  • NON-BILLABLE CODE - C44.50 for Unspecified malignant neoplasm of skin of trunk
  • BILLABLE CODE - Use C44.500 for Unspecified malignant neoplasm of anal skin
  • BILLABLE CODE - Use C44.501 for Unspecified malignant neoplasm of skin of breast
  • BILLABLE CODE - Use C44.509 for Unspecified malignant neoplasm of skin of other part of trunk
  • NON-BILLABLE CODE - C44.51 for Basal cell carcinoma of skin of trunk
  • BILLABLE CODE - Use C44.510 for Basal cell carcinoma of anal skin
  • BILLABLE CODE - Use C44.511 for Basal cell carcinoma of skin of breast
  • BILLABLE CODE - Use C44.519 for Basal cell carcinoma of skin of other part of trunk
  • NON-BILLABLE CODE - C44.52 for Squamous cell carcinoma of skin of trunk
  • BILLABLE CODE - Use C44.520 for Squamous cell carcinoma of anal skin
  • BILLABLE CODE - Use C44.521 for Squamous cell carcinoma of skin of breast
  • BILLABLE CODE - Use C44.529 for Squamous cell carcinoma of skin of other part of trunk
  • NON-BILLABLE CODE - C44.59 for Other specified malignant neoplasm of skin of trunk
  • BILLABLE CODE - Use C44.590 for Other specified malignant neoplasm of anal skin
  • BILLABLE CODE - Use C44.591 for Other specified malignant neoplasm of skin of breast
  • BILLABLE CODE - Use C44.599 for Other specified malignant neoplasm of skin of other part of trunk

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to this diagnosis code:


Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Patient Education


Skin Cancer

Skin cancer is the most common form of cancer in the United States. The two most common types are basal cell cancer and squamous cell cancer. They usually form on the head, face, neck, hands, and arms. Another type of skin cancer, melanoma, is more dangerous but less common.

Anyone can get skin cancer, but it is more common in people who :

You should have your doctor check any suspicious skin markings and any changes in the way your skin looks. Treatment is more likely to work well when cancer is found early. If not treated, some types of skin cancer cells can spread to other tissues and organs. Treatments include surgery, radiation therapy, chemotherapy, photodynamic therapy (PDT), and biologic therapy. PDT uses a drug and a type of laser light to kill cancer cells. Biologic therapy boosts your body's own ability to fight cancer.

NIH: National Cancer Institute


[Learn More in MedlinePlus]

Code History