2024 ICD-10-CM Diagnosis Code C79.49

Secondary malignant neoplasm of other parts of nervous system

ICD-10-CM Code:
C79.49
ICD-10 Code for:
Secondary malignant neoplasm of oth parts of nervous system
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Neoplasms
    (C00–D49)
    • 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 is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

The following anatomical sites found in the Table of Neoplasms reference this diagnosis 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:

  • Adenocarcinoma of lacrimal gland
  • Adenocarcinoma of lacrimal gland
  • Adenoid cystic carcinoma of lacrimal gland
  • Adenoid cystic carcinoma of lacrimal gland
  • Bilateral metastatic malignant neoplasm to eyes
  • Disorder of olfactory nerve
  • Disseminated chorioretinitis
  • 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
  • Finding addressing invasion of optic nerve by tumor
  • Finding addressing invasion of sclera by tumor
  • Finding addressing invasion of sclera by tumor
  • Left lacrimal adenoid cystic carcinoma
  • Leukemic infiltrate of choroid
  • Leukemic infiltrate of retina
  • Leukemic infiltration of orbit
  • Malignant neoplasm of cauda equina
  • Malignant neoplasm of sclera
  • Malignant neoplasm of spinal meninges
  • Malignant tumor of choroid
  • Malignant tumor of choroid
  • Malignant tumor of ciliary body
  • Malignant tumor of cornea
  • Malignant tumor of lacrimal drainage structure
  • Malignant tumor of lacrimal drainage structure
  • Malignant tumor of optic nerve
  • Metastasis to nervous system and eye
  • Metastatic adenocarcinoma to retinal pigment epithelium
  • Metastatic adenoid cystic carcinoma to left lacrimal gland
  • Metastatic adenoid cystic carcinoma to right lacrimal gland
  • Metastatic castration-resistant prostate cancer
  • Metastatic disseminated retinitis
  • Metastatic disseminated retinitis AND retinochoroiditis
  • Metastatic malignant neoplasm of meninges
  • Metastatic malignant neoplasm of meninges
  • Metastatic malignant neoplasm of peripheral nervous system
  • Metastatic malignant neoplasm to abducens nerve
  • Metastatic malignant neoplasm to accessory nerve
  • Metastatic malignant neoplasm to acoustic nerve
  • Metastatic malignant neoplasm to brain and spinal cord
  • Metastatic malignant neoplasm to cauda equina
  • Metastatic malignant neoplasm to choroid
  • Metastatic malignant neoplasm to ciliary body
  • Metastatic malignant neoplasm to conjunctiva
  • Metastatic malignant neoplasm to cornea
  • Metastatic malignant neoplasm to cranial nerve
  • Metastatic malignant neoplasm to eye
  • Metastatic malignant neoplasm to facial nerve
  • Metastatic malignant neoplasm to glossopharyngeal nerve
  • Metastatic malignant neoplasm to hypoglossal nerve
  • Metastatic malignant neoplasm to lacrimal drainage structure
  • Metastatic malignant neoplasm to lacrimal gland
  • Metastatic malignant neoplasm to lacrimal gland
  • Metastatic malignant neoplasm to lacrimal gland
  • Metastatic malignant neoplasm to lacrimal gland duct
  • Metastatic malignant neoplasm to left eye
  • Metastatic malignant neoplasm to leptomeninges
  • Metastatic malignant neoplasm to oculomotor nerve
  • Metastatic malignant neoplasm to olfactory nerve
  • Metastatic malignant neoplasm to optic nerve
  • Metastatic malignant neoplasm to orbit
  • Metastatic malignant neoplasm to retina
  • Metastatic malignant neoplasm to retina
  • Metastatic malignant neoplasm to right eye
  • Metastatic malignant neoplasm to sclera
  • Metastatic malignant neoplasm to spinal cord
  • Metastatic malignant neoplasm to spinal cord
  • Metastatic malignant neoplasm to spinal meninges
  • Metastatic malignant neoplasm to trigeminal nerve
  • Metastatic malignant neoplasm to trochlear nerve
  • Metastatic malignant neoplasm to uveal tract
  • Metastatic malignant neoplasm to vagus nerve
  • Metastatic neuroblastoma
  • Metastatic neuroblastoma of orbit proper
  • Metastatic spinal cord compression
  • Myelopathy due to malignant neoplastic disease
  • Myelopathy due to neoplastic disease
  • Neoplasm of abducens nerve
  • Neoplasm of accessory nerve
  • Neoplasm of cauda equina
  • Neoplasm of facial nerve
  • Neoplasm of glossopharyngeal nerve
  • Neoplasm of hypoglossal nerve
  • Neoplasm of oculomotor nerve
  • Neoplasm of olfactory nerve
  • Neoplasm of sclera
  • Neoplasm of trigeminal nerve
  • Neoplasm of trochlear nerve
  • Neoplasm of vagus nerve
  • Perineural invasion by tumor present
  • Perineural invasion finding
  • Prostate cancer metastatic to eye
  • Retinal pigment epithelial adenocarcinoma
  • Right lacrimal adenoid cystic carcinoma
  • Spinal cord compression due to neoplasm
  • Tumor invades anterior chamber of eye
  • Tumor invades optic disc
  • Tumor invades optic nerve
  • Tumor invades optic nerve anterior to lamina cribrosa
  • Tumor invades optic nerve at lamina cribrosa
  • Tumor invades optic nerve posterior to lamina cribrosa but not to end of nerve
  • Tumor invades optic nerve to cut end of optic nerve
  • Tumor invades Schlemm's canal
  • Tumor invades sclera

Clinical Classification

Clinical Information

  • Arachnoid

    a delicate membrane enveloping the brain and spinal cord. it lies between the pia mater and the dura mater. it is separated from the pia mater by the subarachnoid cavity which is filled with cerebrospinal fluid.
  • Arachnoid Cysts

    intracranial or spinal cavities containing a cerebrospinal-like fluid, the wall of which is composed of arachnoidal cells. they are most often developmental or related to trauma. intracranial arachnoid cysts usually occur adjacent to arachnoidal cistern and may present with hydrocephalus; headache; seizures; and focal neurologic signs. (from joynt, clinical neurology, 1994, ch44, pp105-115)
  • Arachnoiditis

    acute or chronic inflammation of the arachnoid membrane of the meninges most often involving the spinal cord or base of the brain. this term generally refers to a persistent inflammatory process characterized by thickening of the arachnoid membrane and dural adhesions. associated conditions include prior surgery, infections, trauma, subarachnoid hemorrhage, and chemical irritation. clinical features vary with the site of inflammation, but include cranial neuropathies, radiculopathies, and myelopathies. (from joynt, clinical neurology, 1997, ch48, p25)
  • Medulloblastoma

    a malignant neoplasm that may be classified either as a glioma or as a primitive neuroectodermal tumor of childhood (see neuroectodermal tumor, primitive). the tumor occurs most frequently in the first decade of life with the most typical location being the cerebellar vermis. histologic features include a high degree of cellularity, frequent mitotic figures, and a tendency for the cells to organize into sheets or form rosettes. medulloblastoma have a high propensity to spread throughout the craniospinal intradural axis. (from devita et al., cancer: principles and practice of oncology, 5th ed, pp2060-1)
  • Cauda Equina

    the lower part of the spinal cord consisting of the lumbar, sacral, and coccygeal nerve roots.
  • Cauda Equina Syndrome

    compressive lesion affecting the nerve roots of the cauda equina (e.g., compression, herniation, inflammation, rupture, or stenosis), which controls the function of the bladder and bowel. symptoms may include neurological dysfunction of bladder or bowels, loss of sexual sensation and altered sensation or paralysis in the lower extremities.
  • Choroid

    the thin, highly vascular membrane covering most of the posterior of the eye between the retina and sclera.
  • Choroid Diseases

    disorders of the choroid including hereditary choroidal diseases, neoplasms, and other abnormalities of the vascular layer of the uvea.
  • Choroid Hemorrhage

    hemorrhage from the vessels of the choroid.
  • Choroid Neoplasms

    tumors of the choroid; most common intraocular tumors are malignant melanomas of the choroid. these usually occur after puberty and increase in incidence with advancing age. most malignant melanomas of the uveal tract develop from benign melanomas (nevi).
  • Choroid Plexus

    a villous structure of tangled masses of blood vessels contained within the third, lateral, and fourth ventricles of the brain. it regulates part of the production and composition of cerebrospinal fluid.
  • Choroid Plexus Neoplasms

    benign or malignant tumors which arise from the choroid plexus of the ventricles of the brain. papillomas (see papilloma, choroid plexus) and carcinomas are the most common histologic subtypes, and tend to seed throughout the ventricular and subarachnoid spaces. clinical features include headaches, ataxia and alterations of consciousness, primarily resulting from associated hydrocephalus. (from devita et al., cancer: principles and practice of oncology, 5th ed, p2072; j neurosurg 1998 mar;88(3):521-8)
  • Choroidal Effusions

    finding of fluid accumulation between the choroid and the sclera.
  • Choroidal Neovascularization

    a pathological process consisting of the formation of new blood vessels in the choroid.
  • Choroideremia

    an x chromosome-linked abnormality characterized by atrophy of the choroid and degeneration of the retinal pigment epithelium causing night blindness.
  • Choroiditis

    inflammation of the choroid.
  • Multifocal Choroiditis

    a multifocal uveitis syndrome involving the retinal pigment epithelium and capillary layer of the choroid. it is characterized by chronic uveitis and multiple choroid lesions referred to as white dots, blurry vision, floaters, sensitivity to light, blind spots, and eye discomfort.
  • Papilloma, Choroid Plexus

    a usually benign neoplasm that arises from the cuboidal epithelium of the choroid plexus and takes the form of an enlarged choroid plexus, which may be associated with oversecretion of csf. the tumor usually presents in the first decade of life with signs of increased intracranial pressure including headaches; ataxia; diplopia; and alterations of mental status. in children it is most common in the lateral ventricles and in adults it tends to arise in the fourth ventricle. malignant transformation to choroid plexus carcinomas may rarely occur. (adams et al., principles of neurology, 6th ed, p667; devita et al., cancer: principles and practice of oncology, 5th ed, p2072)
  • Polypoidal Choroidal Vasculopathy

    a choroid neovascularization characterized by serosanguineous retinal pigment epithelial detachment and leakage of serous exudate sometimes associated with aneurysmal polypoidal lesions.
  • White Dot Syndromes

    a group of idiopathic multifocal posterior uveitis syndromes involving the choroid; retinal pigment epithelium; and retina. they are characterized by multiple lesions of hypoautofluorescent dots in the fundus oculi and reduced visual acuity. several entities including birdshot chorioretinopathy are hla-a antigens serotype a29 positive.
  • Ciliary Body

    a ring of tissue extending from the scleral spur to the ora serrata of the retina. it consists of the uveal portion and the epithelial portion. the ciliary muscle is in the uveal portion and the ciliary processes are in the epithelial portion.
  • Spasm

    an involuntary contraction of a muscle or group of muscles. spasms may involve skeletal muscle or smooth muscle.
  • Conjunctiva

    the mucous membrane that covers the posterior surface of the eyelids and the anterior pericorneal surface of the eyeball.
  • Conjunctival Diseases

    diseases involving the conjunctiva.
  • Conjunctival Neoplasms

    tumors or cancer of the conjunctiva.
  • Lacrimal Apparatus

    the tear-forming and tear-conducting system which includes the lacrimal glands, eyelid margins, conjunctival sac, and the tear drainage system.
  • Meninges

    the three membranes that cover the brain and the spinal cord. they are the dura mater, the arachnoid, and the pia mater.
  • Meningocele

    a congenital or acquired protrusion of the meninges, unaccompanied by neural tissue, through a bony defect in the skull or vertebral column.
  • Lacrimal Duct Obstruction

    interference with the secretion of tears by the lacrimal glands. obstruction of the lacrimal sac or nasolacrimal duct causing acute or chronic inflammation of the lacrimal sac (dacryocystitis). it is caused also in infants by failure of the nasolacrimal duct to open into the inferior meatus and occurs about the third week of life. in adults occlusion may occur spontaneously or after injury or nasal disease. (newell, ophthalmology: principles and concepts, 7th ed, p250)
  • Nasolacrimal Duct

    a tubular duct that conveys tears from the lacrimal gland to the nose.
  • Arrestin

    a 48-kd protein of the outer segment of the retinal rods and a component of the phototransduction cascade. arrestin quenches g-protein activation by binding to phosphorylated photolyzed rhodopsin. arrestin causes experimental autoimmune uveitis when injected into laboratory animals.
  • ATP Binding Cassette Transporter, Subfamily A, Member 4

    an atp binding cassette sub-family a transporter that translocates 11-cis and all-trans isomers of n-retinylidene-phosphatidylethanolamine (retinoids) from the extracellular surface to the cytoplasmic membrane surface of retinal rod cells and retinal cone cells. mutations in the abca4 gene are associated with stargardt disease 1, a hereditary juvenile form of macular degeneration.
  • Blood-Retinal Barrier

    a specialized transport barrier, in the eye, formed by the retinal pigment epithelium, and the endothelium of the blood vessels of the retina. tight junctions joining adjacent cells keep the barrier between cells continuous.
  • Cone-Rod Dystrophies

    genetically heterogeneous and sometimes syndromic (e.g., bardet biedl syndrome; and spinocerebellar ataxia type 7) retinopathies with initial retinal cone involvement. they are characterized by decreased visual acuity; color vision defects; progressive loss of peripheral vision and night blindness.
  • Cyclic Nucleotide Phosphodiesterases, Type 6

    a cyclic nucleotide phosphodiesterase subfamily that is highly specific for cyclic gmp. it is found predominantly in the outer segment photoreceptor cells of the retina. it is comprised of two catalytic subunits, referred to as alpha and beta, that form a dimer. in addition two regulatory subunits, referred to as gamma and delta, modulate the activity and localization of the enzyme.
  • Ependymoglial Cells

    the macroglial cells of ependyma. they are characterized by bipolar cell body shape and processes that contact basal lamina around blood vessels and/or the pia mater and the cerebral ventricles. muller cells of the retina are included based on similar microenvironmental contacts and morphology.
  • Leber Congenital Amaurosis

    a rare degenerative inherited eye disease that appears at birth or in the first few months of life that results in a loss of vision. not to be confused with leber hereditary optic neuropathy, the disease is thought to be caused by abnormal development of photoreceptor cells in the retina, or by the extremely premature degeneration of retinal cells.
  • Microaneurysm

    aneurysm of the microvasculature. charcot–bouchard aneurysms are aneurysms of the brain vasculature which is a common cause of cerebral hemorrhage. retinal microaneurysm is an early diagnostic sign of diabetic retinopathy.
  • Neuroectodermal Tumor, Melanotic

    a benign, rapidly growing, deeply pigmented tumor of the jaw and occasionally of other sites, consisting of an infiltrating mass of cells arranged in an alveolar pattern, and occurring almost exclusively in infants. its source of origin is in dispute, the various theories giving rise to its several names. (dorland, 27th ed)
  • Papilledema

    swelling of the optic disk, usually in association with increased intracranial pressure, characterized by hyperemia, blurring of the disk margins, microhemorrhages, blind spot enlargement, and engorgement of retinal veins. chronic papilledema may cause optic atrophy and visual loss. (miller et al., clinical neuro-ophthalmology, 4th ed, p175)
  • Photoreceptor Cells, Vertebrate

    specialized phototransduction neurons in the vertebrates, such as the retinal rod cells and the retinal cone cells. non-visual photoreceptor neurons have been reported in the deep brain, the pineal gland and organs of the circadian system.
  • Porencephaly

    cortical malformations characterized by white matter-lined cleft or cyst associated with ischemia and hemorrhagic insults. symptoms include delayed growth and development, hypotonia; seizures; spastic hemiplegia and macrocephaly; microcephaly; or hydrocephalus. mutations in the genes encoding collagen type iv are associated with familial types.
  • Retina

    the ten-layered nervous tissue membrane of the eye. it is continuous with the optic nerve and receives images of external objects and transmits visual impulses to the brain. its outer surface is in contact with the choroid and the inner surface with the vitreous body. the outer-most layer is pigmented, whereas the inner nine layers are transparent.
  • Retinal Arterial Macroaneurysm

    an acquired dilation of the retinal artery often associated with systemic hypertension.
  • Retinal Artery

    central retinal artery and its branches. it arises from the ophthalmic artery, pierces the optic nerve and runs through its center, enters the eye through the porus opticus and branches to supply the retina.
  • Retinal Artery Occlusion

    sudden ischemia in the retina due to blocked blood flow through the central retinal artery or its branches leading to sudden complete or partial loss of vision, respectively, in the eye.
  • Retinal Bipolar Cells

    interneurons of the vertebrate retina containing two processes. they receive inputs from the retinal photoreceptor cells and send outputs to the retinal ganglion cells. the bipolar cells also make lateral connections in the retina with the retinal horizontal cells and with the amacrine cells.
  • Retinal Cone Photoreceptor Cells

    photosensitive afferent neurons located primarily within the fovea centralis of the macula lutea. there are three major types of cone cells (red, blue, and green) whose photopigments have different spectral sensitivity curves. retinal cone cells operate in daylight vision (at photopic intensities) providing color recognition and central visual acuity.
  • Retinal Degeneration

    a retrogressive pathological change in the retina, focal or generalized, caused by genetic defects, inflammation, trauma, vascular disease, or aging. degeneration affecting predominantly the macula lutea of the retina is macular degeneration. (newell, ophthalmology: principles and concepts, 7th ed, p304)
  • Retinal Dehydrogenase

    a metalloflavoprotein enzyme involved the metabolism of vitamin a, this enzyme catalyzes the oxidation of retinal to retinoic acid, using both nad+ and fad coenzymes. it also acts on both the 11-trans- and 13-cis-forms of retinal.
  • Retinal Detachment

    separation of the inner layers of the retina (neural retina) from the pigment epithelium. retinal detachment occurs more commonly in men than in women, in eyes with degenerative myopia, in aging and in aphakia. it may occur after an uncomplicated cataract extraction, but it is seen more often if vitreous humor has been lost during surgery. (dorland, 27th ed; newell, ophthalmology: principles and concepts, 7th ed, p310-12).
  • Retinal Diseases

    diseases involving the retina.
  • Retinal Drusen

    colloid or hyaline bodies lying beneath the retinal pigment epithelium. they may occur either secondary to changes in the choroid that affect the pigment epithelium or as an autosomal dominant disorder of the retinal pigment epithelium.
  • Retinal Dysplasia

    congenital, often bilateral, retinal abnormality characterized by the arrangement of outer nuclear retinal cells in a palisading or radiating pattern surrounding a central ocular space. this disorder is sometimes hereditary.
  • Retinal Dystrophies

    a group of disorders involving predominantly the posterior portion of the ocular fundus, due to degeneration in the sensory layer of the retina; retinal pigment epithelium; bruch membrane; choroid; or a combination of these tissues.
  • Retinal Ganglion Cells

    neurons of the innermost layer of the retina, the internal plexiform layer. they are of variable sizes and shapes, and their axons project via the optic nerve to the brain. a small subset of these cells act as photoreceptors with projections to the suprachiasmatic nucleus, the center for regulating circadian rhythm.
  • Retinal Hemorrhage

    bleeding from the vessels of the retina.
  • Retinal Horizontal Cells

    neurons in the inner nuclear layer of the retina that synapse with both the retinal photoreceptor cells and the retinal bipolar cells, as well as other horizontal cells. the horizontal cells modulate the sensory signal.
  • Retinal Necrosis Syndrome, Acute

    mild to fulminant necrotizing vaso-occlusive retinitis associated with a high incidence of retinal detachment and poor vision outcome.
  • Retinal Neoplasms

    tumors or cancer of the retina.
  • Retinal Neovascularization

    formation of new blood vessels originating from the retinal veins and extending along the inner (vitreal) surface of the retina.
  • Retinal Neurons

    nerve cells of the retina in the pathway of transmitting light signals to the central nervous system. they include the outer layer of photoreceptor cells, the intermediate layer of retinal bipolar cells and amacrine cells, and the internal layer of retinal ganglion cells.
  • Retinal Perforations

    perforations through the whole thickness of the retina including the macula as the result of inflammation, trauma, degeneration, etc. the concept includes retinal breaks, tears, dialyses, and holes.
  • Retinal Photoreceptor Cell Inner Segment

    the inner portion of a retinal rod or a cone photoreceptor cell, situated between the photoreceptor connecting cilium and the synapse with the adjacent neurons (retinal bipolar cells; retinal horizontal cells). the inner segment contains the cell body, the nucleus, the mitochondria, and apparatus for protein synthesis.
  • Retinal Photoreceptor Cell Outer Segment

    the light sensitive outer portion of a retinal rod or a cone photoreceptor cell. the outer segment contains a stack of disk membranes laden with photoreceptive pigments (retinal pigments). the outer segment is connected to the inner segment by a photoreceptor connecting cilium.
  • Retinal Pigment Epithelium

    the single layer of pigment-containing epithelial cells in the retina, situated closely to the tips (outer segments) of the retinal photoreceptor cells. these epithelial cells are macroglia that perform essential functions for the photoreceptor cells, such as in nutrient transport, phagocytosis of the shed photoreceptor membranes, and ensuring retinal attachment.
  • Retinal Pigments

    photosensitive protein complexes of varied light absorption properties which are expressed in the photoreceptor cells. they are opsins conjugated with vitamin a-based chromophores. chromophores capture photons of light, leading to the activation of opsins and a biochemical cascade that ultimately excites the photoreceptor cells.
  • Retinal Rod Photoreceptor Cells

    photosensitive afferent neurons located in the peripheral retina, with their density increases radially away from the fovea centralis. being much more sensitive to light than the retinal cone cells, the rod cells are responsible for twilight vision (at scotopic intensities) as well as peripheral vision, but provide no color discrimination.
  • Retinal Telangiectasis

    a group of rare, idiopathic, congenital retinal vascular anomalies affecting the retinal capillaries. it is characterized by dilation and tortuosity of retinal vessels and formation of multiple aneurysms, with different degrees of leakage and exudates emanating from the blood vessels.
  • Retinal Vasculitis

    inflammation of the retinal vasculature with various causes including infectious disease; lupus erythematosus, systemic; multiple sclerosis; behcet syndrome; and chorioretinitis.
  • Retinal Vein

    central retinal vein and its tributaries. it runs a short course within the optic nerve and then leaves and empties into the superior ophthalmic vein or cavernous sinus.
  • Retinal Vein Occlusion

    blockage of the retinal vein. those at high risk for this condition include patients with hypertension; diabetes mellitus; atherosclerosis; and other cardiovascular diseases.
  • Retinal Vessels

    the blood vessels which supply and drain the retina.
  • Retinaldehyde

    a diterpene derived from the carotenoid vitamin a which functions as the active component of the visual cycle. it is the prosthetic group of rhodopsin (i.e., covalently bonded to rod opsin as 11-cis-retinal). when stimulated by visible light, rhodopsin transforms this cis-isomer of retinal to the trans-isomer (11-trans-retinal). this transformation straightens-out the bend of the retinal molecule and causes a change in the shape of rhodopsin triggering the visual process. a series of energy-requiring enzyme-catalyzed reactions convert the 11-trans-retinal back to the cis-isomer.
  • Retinoblastoma

    a malignant tumor arising from the nuclear layer of the retina that is the most common primary tumor of the eye in children. the tumor tends to occur in early childhood or infancy and may be present at birth. the majority are sporadic, but the condition may be transmitted as an autosomal dominant trait. histologic features include dense cellularity, small round polygonal cells, and areas of calcification and necrosis. an abnormal pupil reflex (leukokoria); nystagmus, pathologic; strabismus; and visual loss represent common clinical characteristics of this condition. (from devita et al., cancer: principles and practice of oncology, 5th ed, p2104)
  • Vision Disparity

    the difference between two images on the retina when looking at a visual stimulus. this occurs since the two retinas do not have the same view of the stimulus because of the location of our eyes. thus the left eye does not get exactly the same view as the right eye.
  • Visual Prosthesis

    artificial device such as an externally-worn camera attached to a stimulator on the retina, optic nerve, or visual cortex, intended to restore or amplify vision.
  • Schlemm's Canal

    a circular vascular-like structure in the anterior chamber of the eye bounded anterolaterally by the internal scleral sulcus and posteriorly by the trabecular meshwork. it is a part of a pathway where the aqueous humor from the anterior chamber of the eye passes through the trabecular meshwork, drains into the lumen of schlemm’s canal, and subsequently returns to blood circulation into the veins of the sclera.
  • Sclera

    the white, opaque, fibrous, outer tunic of the eyeball, covering it entirely excepting the segment covered anteriorly by the cornea. it is essentially avascular but contains apertures for vessels, lymphatics, and nerves. it receives the tendons of insertion of the extraocular muscles and at the corneoscleral junction contains the canal of schlemm. (from cline et al., dictionary of visual science, 4th ed)
  • Scleral Buckling

    an operation for retinal detachment which reduces the size of the globe by indenting the sclera so that it approximates the retina.
  • Scleral Diseases

    general disorders of the sclera or white of the eye. they may include anatomic, embryologic, degenerative, or pigmentation defects.
  • Metastatic Neuroblastoma

    a neuroblastoma that has metastasized from its original site of growth to another anatomic site.

Convert C79.49 to ICD-9-CM

  • ICD-9-CM Code: 198.4 - Sec malig neo nerve NEC
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Table of Neoplasms

This code is referenced 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
C72.4C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »arachnoid
C70.9C79.49 D32.9D42.9D49.7
»Neoplasm, neoplastic
  »arachnoid
    »spinal
C70.1C79.49 D32.1D42.1D49.7
»Neoplasm, neoplastic
  »auditory
    »nerve
C72.4C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »cauda equina
C72.1C79.49 D33.4D43.4D49.7
»Neoplasm, neoplastic
  »chiasma opticum
C72.3C79.49 D33.3D43.3D49.7
»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
C72.0C79.49 D33.4D43.4D49.7
»Neoplasm, neoplastic
  »cord (true) (vocal)
    »spinal (cervical) (lumbar) (thoracic)
C72.0C79.49 D33.4D43.4D49.7
»Neoplasm, neoplastic
  »cornea (limbus)
C69.1C79.49D09.2D31.1D48.7D49.89
»Neoplasm, neoplastic
  »cranial (fossa, any)
    »nerve
C72.50C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »cranial (fossa, any)
    »nerve
      »specified NEC
C72.59C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »crystalline lens
C69.4C79.49D09.2D31.4D48.7D49.89
»Neoplasm, neoplastic
  »dura (cranial) (mater)
C70.9C79.49 D32.9D42.9D49.7
»Neoplasm, neoplastic
  »dura (cranial) (mater)
    »spinal
C70.1C79.49 D32.1D42.1D49.7
»Neoplasm, neoplastic
  »epidural
C72.9C79.49 D33.9D43.9D49.7
»Neoplasm, neoplastic
  »extradural
C72.9C79.49 D33.9D43.9D49.7
»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
C72.0C79.49 D33.4D43.4D49.7
»Neoplasm, neoplastic
  »ganglia [See Also: Neoplasm, nerve, peripheral]
    »cranial nerve
C72.50C79.49 D33.3D43.3D49.7
»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
C70.9C79.49 D32.9D42.9D49.7
»Neoplasm, neoplastic
  »meninges
    »spinal (cord)
C70.1C79.49 D32.1D42.1D49.7
»Neoplasm, neoplastic
  »motor tract
C72.9C79.49 D33.9D43.9D49.7
»Neoplasm, neoplastic
  »motor tract
    »cauda equina
C72.1C79.49 D33.4D43.4D49.7
»Neoplasm, neoplastic
  »motor tract
    »spinal
C72.0C79.49 D33.4D43.4D49.7
»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
C72.59C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »accessory (spinal)
C72.59C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »acoustic
C72.4C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »auditory
C72.4C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »cranial
C72.50C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »cranial
      »specified NEC
C72.59C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »facial
C72.59C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »glossopharyngeal
C72.59C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »hypoglossal
C72.59C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »oculomotor
C72.59C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »olfactory
C47.2C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »optic
C72.3C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »peripheral NEC
      »orbit
C69.6C79.49 D31.6D48.7D49.2
»Neoplasm, neoplastic
  »nerve (ganglion)
    »spinal NEC
      »accessory
C72.59C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »trigeminal
C72.59C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »trochlear
C72.59C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nerve (ganglion)
    »vagus
C72.59C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »nervous system (central)
    »specified site NEC
 C79.49 D33.7D43.8 
»Neoplasm, neoplastic
  »olfactory nerve or bulb
C72.2C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »optic nerve, chiasm, or tract
C72.3C79.49 D33.3D43.3D49.7
»Neoplasm, neoplastic
  »orbit
C69.6C79.49D09.2D31.6D48.7D49.89
»Neoplasm, neoplastic
  »orbit
    »autonomic nerve
C69.6C79.49 D31.6D48.7D49.2
»Neoplasm, neoplastic
  »orbit
    »eye
C69.6C79.49D09.2D31.6D48.7D49.89
»Neoplasm, neoplastic
  »orbit
    »peripheral nerves
C69.6C79.49 D31.6D48.7D49.2
»Neoplasm, neoplastic
  »orbit
    »soft parts
C69.6C79.49D09.2D31.6D48.7D49.89
»Neoplasm, neoplastic
  »parasellar
C72.9C79.49 D33.9D43.8D49.7
»Neoplasm, neoplastic
  »pia mater
    »spinal
C70.1C79.49 D32.1D42.1D49.7
»Neoplasm, neoplastic
  »retina
C69.2C79.49D09.2D31.2D48.7D49.81
»Neoplasm, neoplastic
  »retrobulbar
C69.6C79.49 D31.6D48.7D49.89
»Neoplasm, neoplastic
  »sclera
C69.4C79.49D09.2D31.4D48.7D49.89
»Neoplasm, neoplastic
  »spine, spinal (column)
    »cord (cervical) (lumbar) (sacral) (thoracic)
C72.0C79.49 D33.4D43.4D49.7
»Neoplasm, neoplastic
  »spine, spinal (column)
    »dura mater
C70.1C79.49 D32.1D42.1D49.7
»Neoplasm, neoplastic
  »spine, spinal (column)
    »membrane
C70.1C79.49 D32.1D42.1D49.7
»Neoplasm, neoplastic
  »spine, spinal (column)
    »meninges
C70.1C79.49 D32.1D42.1D49.7
»Neoplasm, neoplastic
  »spine, spinal (column)
    »pia mater
C70.1C79.49 D32.1D42.1D49.7
»Neoplasm, neoplastic
  »uveal tract
C69.4C79.49D09.2D31.4D48.7D49.89

Patient Education


Cancer

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

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

[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • 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. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.