2021 ICD-10-CM Code C79.49

Secondary malignant neoplasm of other parts of nervous system

Version 2021

Valid for Submission

ICD-10:C79.49
Short Description:Secondary malignant neoplasm of oth parts of nervous system
Long Description:Secondary malignant neoplasm of other parts of nervous system

Code Classification

  • Neoplasms (C00–D48)
    • Malignant neoplasms of ill-defined, other secondary and unspecified sites (C76-C80)
      • Secondary malignant neoplasm of other and unspecified sites (C79)

C79.49 is a billable diagnosis code used to specify a medical diagnosis of secondary malignant neoplasm of other parts of nervous system. The code C79.49 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The ICD-10-CM code C79.49 might also be used to specify conditions or terms like disorder of olfactory nerve, disseminated retinitis, finding addressing invasion of optic nerve by tumor, finding addressing invasion of optic nerve by tumor, finding addressing invasion of optic nerve by tumor , finding addressing invasion of optic nerve by tumor, etc.

The following anatomical sites found in the Table of Neoplasms apply to this code given the correct histological behavior: Neoplasm, neoplastic acoustic nerve ; Neoplasm, neoplastic arachnoid ; Neoplasm, neoplastic arachnoid spinal ; Neoplasm, neoplastic auditory nerve ; Neoplasm, neoplastic cauda equina ; Neoplasm, neoplastic chiasma opticum ; Neoplasm, neoplastic choroid ; etc

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Convert C79.49 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code C79.49 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

Table of Neoplasms

The code C79.49 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.

Neoplasm, neoplastic Malignant
Primary
Malignant
Secondary
CaInSitu Benign Uncertain
Behavior
Unspecified
Behavior
»Neoplasm, neoplastic
  »acoustic nerve
C72.4C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »arachnoid
C70.9C79.49D32.9D42.9D49.7
»Neoplasm, neoplastic
  »arachnoid
    »spinal
C70.1C79.49D32.1D42.1D49.7
»Neoplasm, neoplastic
  »auditory
    »nerve
C72.4C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »cauda equina
C72.1C79.49D33.4D43.4D49.7
»Neoplasm, neoplastic
  »chiasma opticum
C72.3C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »choroid
C69.3C79.49D09.2D31.3D48.7D49.81
»Neoplasm, neoplastic
  »ciliary body
C69.4C79.49D09.2D31.4D48.7D49.89
»Neoplasm, neoplastic
  »conjunctiva
C69.0C79.49D09.2D31.0D48.7D49.89
»Neoplasm, neoplastic
  »connective tissue NEC
    »orbit
C69.6C79.49D09.2D31.6D48.1D49.89
»Neoplasm, neoplastic
  »conus medullaris
C72.0C79.49D33.4D43.4D49.7
»Neoplasm, neoplastic
  »cord (true) (vocal)
    »spinal (cervical) (lumbar) (thoracic)
C72.0C79.49D33.4D43.4D49.7
»Neoplasm, neoplastic
  »cornea (limbus)
C69.1C79.49D09.2D31.1D48.7D49.89
»Neoplasm, neoplastic
  »cranial (fossa, any)
    »nerve
C72.50C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »cranial (fossa, any)
    »nerve
      »specified NEC
C72.59C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »crystalline lens
C69.4C79.49D09.2D31.4D48.7D49.89
»Neoplasm, neoplastic
  »dura (cranial) (mater)
C70.9C79.49D32.9D42.9D49.7
»Neoplasm, neoplastic
  »dura (cranial) (mater)
    »spinal
C70.1C79.49D32.1D42.1D49.7
»Neoplasm, neoplastic
  »epidural
C72.9C79.49D33.9D43.9D49.7
»Neoplasm, neoplastic
  »extradural
C72.9C79.49D33.9D43.9D49.7
»Neoplasm, neoplastic
  »extraocular muscle
C69.6C79.49D09.2D31.6D48.7D49.89
»Neoplasm, neoplastic
  »eye NEC
C69.9C79.49D09.2D31.9D48.7D49.89
»Neoplasm, neoplastic
  »eyeball
C69.9C79.49D09.2D31.9D48.7D49.89
»Neoplasm, neoplastic
  »filum terminale
C72.0C79.49D33.4D43.4D49.7
»Neoplasm, neoplastic
  »ganglia [See Also: Neoplasm, nerve, peripheral]
    »cranial nerve
C72.50C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »intraocular
C69.9C79.49D09.2D31.9D48.7D49.89
»Neoplasm, neoplastic
  »intraorbital
C69.6C79.49D09.2D31.6D48.7D49.89
»Neoplasm, neoplastic
  »iris
C69.4C79.49D09.2D31.4D48.7D49.89
»Neoplasm, neoplastic
  »lacrimal
C69.5C79.49D09.2D31.5D48.7D49.89
»Neoplasm, neoplastic
  »lacrimal
    »canaliculi
C69.5C79.49D09.2D31.5D48.7D49.89
»Neoplasm, neoplastic
  »lacrimal
    »duct (nasal)
C69.5C79.49D09.2D31.5D48.7D49.89
»Neoplasm, neoplastic
  »lacrimal
    »gland
C69.5C79.49D09.2D31.5D48.7D49.89
»Neoplasm, neoplastic
  »lacrimal
    »punctum
C69.5C79.49D09.2D31.5D48.7D49.89
»Neoplasm, neoplastic
  »lacrimal
    »sac
C69.5C79.49D09.2D31.5D48.7D49.89
»Neoplasm, neoplastic
  »lens, crystalline
C69.4C79.49D09.2D31.4D48.7D49.89
»Neoplasm, neoplastic
  »limbus of cornea
C69.1C79.49D09.2D31.1D48.7D49.89
»Neoplasm, neoplastic
  »meninges
C70.9C79.49D32.9D42.9D49.7
»Neoplasm, neoplastic
  »meninges
    »spinal (cord)
C70.1C79.49D32.1D42.1D49.7
»Neoplasm, neoplastic
  »motor tract
C72.9C79.49D33.9D43.9D49.7
»Neoplasm, neoplastic
  »motor tract
    »cauda equina
C72.1C79.49D33.4D43.4D49.7
»Neoplasm, neoplastic
  »motor tract
    »spinal
C72.0C79.49D33.4D43.4D49.7
»Neoplasm, neoplastic
  »muscle [See Also: Neoplasm, connective tissue]
C69.6C79.49D09.2D31.6D48.7D49.89
»Neoplasm, neoplastic
  »muscle [See Also: Neoplasm, connective tissue]
    »extraocular
C69.6C79.49D09.2D31.6D48.7D49.89
»Neoplasm, neoplastic
  »nasolacrimal duct
C69.5C79.49D09.2D31.5D48.7D49.89
»Neoplasm, neoplastic
  »nerve (ganglion)
    »abducens
C72.59C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »accessory (spinal)
C72.59C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »acoustic
C72.4C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »auditory
C72.4C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »cranial
C72.50C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »cranial
      »specified NEC
C72.59C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »facial
C72.59C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »glossopharyngeal
C72.59C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »hypoglossal
C72.59C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »oculomotor
C72.59C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »olfactory
C47.2C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »optic
C72.3C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »peripheral NEC
      »orbit
C69.6C79.49D31.6D48.7D49.2
»Neoplasm, neoplastic
  »nerve (ganglion)
    »spinal NEC
      »accessory
C72.59C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »trigeminal
C72.59C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »trochlear
C72.59C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »vagus
C72.59C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nervous system (central)
    »specified site NEC
C79.49D33.7D43.8
»Neoplasm, neoplastic
  »olfactory nerve or bulb
C72.2C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »optic nerve, chiasm, or tract
C72.3C79.49D33.3D43.3D49.7
»Neoplasm, neoplastic
  »orbit
C69.6C79.49D09.2D31.6D48.7D49.89
»Neoplasm, neoplastic
  »orbit
    »autonomic nerve
C69.6C79.49D31.6D48.7D49.2
»Neoplasm, neoplastic
  »orbit
    »eye
C69.6C79.49D09.2D31.6D48.7D49.89
»Neoplasm, neoplastic
  »orbit
    »peripheral nerves
C69.6C79.49D31.6D48.7D49.2
»Neoplasm, neoplastic
  »orbit
    »soft parts
C69.6C79.49D09.2D31.6D48.7D49.89
»Neoplasm, neoplastic
  »parasellar
C72.9C79.49D33.9D43.8D49.7
»Neoplasm, neoplastic
  »pia mater
    »spinal
C70.1C79.49D32.1D42.1D49.7
»Neoplasm, neoplastic
  »retina
C69.2C79.49D09.2D31.2D48.7D49.81
»Neoplasm, neoplastic
  »retrobulbar
C69.6C79.49D31.6D48.7D49.89
»Neoplasm, neoplastic
  »sclera
C69.4C79.49D09.2D31.4D48.7D49.89
»Neoplasm, neoplastic
  »spine, spinal (column)
    »cord (cervical) (lumbar) (sacral) (thoracic)
C72.0C79.49D33.4D43.4D49.7
»Neoplasm, neoplastic
  »spine, spinal (column)
    »dura mater
C70.1C79.49D32.1D42.1D49.7
»Neoplasm, neoplastic
  »spine, spinal (column)
    »membrane
C70.1C79.49D32.1D42.1D49.7
»Neoplasm, neoplastic
  »spine, spinal (column)
    »meninges
C70.1C79.49D32.1D42.1D49.7
»Neoplasm, neoplastic
  »spine, spinal (column)
    »pia mater
C70.1C79.49D32.1D42.1D49.7
»Neoplasm, neoplastic
  »uveal tract
C69.4C79.49D09.2D31.4D48.7D49.89

Information for Patients


Cancer

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, immunotherapy or other types of biologic therapy, or stem cell transplantation.

NIH: National Cancer Institute


[Learn More in MedlinePlus]

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


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)