ICD-10 Diagnosis Code C79.4

Secondary malig neoplasm of and unsp parts of nervous sys

Diagnosis Code C79.4

ICD-10: C79.4
Short Description: Secondary malig neoplasm of and unsp parts of nervous sys
Long Description: Secondary malignant neoplasm of other and unspecified parts of nervous system
This is the 2017 version of the ICD-10-CM diagnosis code C79.4

Code Classification
  • Neoplasms
    • Malignant neoplasms of ill-defined, other secondary and unspecified sites (C76-C80)
      • Secondary malignant neoplasm of other and unspecified sites (C79)

Information for Patients


Also called: Carcinoma, Malignancy, Neoplasms, Tumor

Cancer begins in your cells, which are the building blocks of your body. Normally, your body forms new cells as you need them, replacing old cells that die. Sometimes this process goes wrong. New cells grow even when you don't need them, and old cells don't die when they should. These extra cells can form a mass called a tumor. Tumors can be benign or malignant. Benign tumors aren't cancer while malignant ones are. Cells from malignant tumors can invade nearby tissues. They can also break away and spread to other parts of the body.

Cancer is not just one disease but many diseases. There are more than 100 different types of cancer. Most cancers are named for where they start. For example, lung cancer starts in the lung, and breast cancer starts in the breast. The spread of cancer from one part of the body to another is called metastasis. Symptoms and treatment depend on the cancer type and how advanced it is. Most treatment plans may include surgery, radiation and/or chemotherapy. Some may involve hormone therapy, biologic therapy, or stem cell transplantation.

NIH: National Cancer Institute

  • Cancer
  • Cancer and lymph nodes
  • Cancer prevention: take charge of your lifestyle
  • Cancer treatment -- early menopause
  • Cancer treatment: preventing infection
  • Cancer treatments
  • Hyperthermia for treating cancer
  • Laser therapy for cancer
  • Photodynamic therapy for cancer
  • Targeted therapies for cancer

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Neurologic Diseases

Also called: Nervous system diseases

The brain, spinal cord, and nerves make up the nervous system. Together they control all the workings of the body. When something goes wrong with a part of your nervous system, you can have trouble moving, speaking, swallowing, breathing, or learning. You can also have problems with your memory, senses, or mood.

There are more than 600 neurologic diseases. Major types include

  • Diseases caused by faulty genes, such as Huntington's disease and muscular dystrophy
  • Problems with the way the nervous system develops, such as spina bifida
  • Degenerative diseases, where nerve cells are damaged or die, such as Parkinson's disease and Alzheimer's disease
  • Diseases of the blood vessels that supply the brain, such as stroke
  • Injuries to the spinal cord and brain
  • Seizure disorders, such as epilepsy
  • Cancer, such as brain tumors
  • infections, such as meningitis

  • Cerebral spinal fluid (CSF) collection
  • EEG

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