ICD-10 Diagnosis Code C44.90

Unspecified malignant neoplasm of skin, unspecified

Diagnosis Code C44.90

ICD-10: C44.90
Short Description: Unspecified malignant neoplasm of skin, unspecified
Long Description: Unspecified malignant neoplasm of skin, unspecified
This is the 2017 version of the ICD-10-CM diagnosis code C44.90

Valid for Submission
The code C44.90 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Neoplasms (C00–D48)
    • Melanoma and other malignant neoplasms of skin (C43-C44)
      • Other and unspecified malignant neoplasm of skin (C44)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code C44.90 is grouped in the following Diagnostic Related Group(s) (MS-DRG V34.0)

  • 606 - MINOR SKIN DISORDERS WITH MCC
  • 607 - MINOR SKIN DISORDERS WITHOUT MCC

Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • 173.90 - Malig neo skin site NOS

Synonyms
  • Adverse effect from psoralen and long-wave ultraviolet radiation photochemotherapy
  • Arsenic-induced skin malignancy
  • Carcinoma of bone, connective tissue, skin and breast
  • Local recurrence of malignant tumor of skin
  • Malignant epithelial neoplasm of skin
  • Malignant neoplasm of bone, connective tissue, skin and breast
  • Malignant neoplasm of nail apparatus
  • Malignant neoplasm of skin
  • Malignant skin tumor with adnexal differentiation
  • Malignant skin tumor with eccrine differentiation
  • Malignant tumor of dermis
  • Malignant vascular tumor of skin
  • Metastasis from malignant tumor of skin
  • Neoplasm of sweat gland
  • Primary malignant neoplasm of sebaceous gland
  • Primary malignant neoplasm of skin
  • Primary malignant neoplasm of skin with adnexal differentiation
  • Primary malignant neoplasm of sweat gland
  • Psoralen and long-wave ultraviolet radiation therapy-associated skin malignancy
  • pT1: Tumor 2 cm or less in greatest dimension
  • pT1a: Tumor 2 cm or less in greatest dimension, limited to dermis or 2 mm or less in thickness
  • pT1b: Tumor 2 cm or less in greatest dimension, limited to dermis and greater than 2 mm in thickness, but not more than 6 mm in thickness
  • pT1c: Tumor 2 cm or less in greatest dimension, invading the subcutis and/or greater than 6 mm in thickness
  • pT2: Tumor more than 2 cm, but not more than 5 cm, in greatest dimension
  • pT2a: Tumor more than 2 cm, but not more than 5 cm, in greatest dimension, limited to dermis or greater than 2 mm in thickness
  • pT2b: Tumor more than 2 cm, but not more than 5 cm, in greatest dimension, limited to dermis and greater than 2 mm in thickness, but not more than 6 mm in thickness
  • pT2c: Tumor more than 2 cm, but not more than 5 cm, in greatest dimension, invading the subcutis and/or greater than 6 mm in thickness
  • pT3: Tumor more than 5 cm in greatest dimension
  • pT3a: Tumor more than 5 cm in greatest dimension, limited to dermis or not more than 2 mm in thickness
  • pT3b: Tumor more than 5 cm in greatest dimension, limited to dermis and greater than 2 mm in thickness, but not more than 6 mm in thickness
  • pT3c: Tumor more than 5 cm in greatest dimension, invading the subcutis and/or greater than 6 mm in thickness
  • pT4: Tumor invades deep extradermal structures
  • pT4a: Tumor invades deep extradermal structures
  • pT4b: Tumor invades deep extradermal structures
  • Radiation-induced skin malignancy
  • Skin disease caused by arsenic
  • Torré-Muir syndrome
  • Toxicoderma
  • Tumor of skin with sebaceous differentiation
  • Undifferentiated adnexal carcinoma of skin

Index of Diseases and Injuries
References found for the code C44.90 in the Index of Diseases and Injuries:


Table of Neoplasms

The code C44.90 is included in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.

Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.

The Tabular must be reviewed for the complete diagnosis code.

Neoplasm, neoplastic Malignant
Primary
Malignant
Secondary
CaInSitu Benign Uncertain
Behavior
Unspecified
Behavior
»connective tissue NEC
  »skin (dermis) NEC [See Also: Neoplasm, skin, by site]
C44.90C79.2D04.9D23.9D48.5D49.2
»nail [See Also: Neoplasm, skin, limb]
C44.90C79.2D04.9D23.9D48.5D49.2
»scar NEC [See Also: Neoplasm, skin, by site]
C44.90C79.2D04.9D23.9D48.5D49.2
»skin NOS
C44.90C79.2D04.9D23.9D48.5D49.2
»skin NOS
  »limb NEC
C44.90C79.2D04.9D23.9D48.5D49.2
»sudoriferous, sudoriparous gland, site unspecified
C44.90C79.2D04.9D23.9D48.5D49.2
»sweat gland (apocrine) (eccrine), site unspecified
C44.90C79.2D04.9D23.9D48.5D49.2

Information for Patients


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

  • Spend a lot of time in the sun or have been sunburned
  • Have light-colored skin, hair and eyes
  • Have a family member with skin cancer
  • Are over age 50

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

  • Basal cell carcinoma (Medical Encyclopedia)
  • Mohs micrographic surgery (Medical Encyclopedia)
  • Skin lesion biopsy (Medical Encyclopedia)
  • Skin self-exam (Medical Encyclopedia)
  • Squamous cell skin cancer (Medical Encyclopedia)
  • What to Know about External Beam Radiation Therapy - NIH - Easy-to-Read (National Cancer Institute)


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