2024 ICD-10-CM Diagnosis Code D49.9

Approximate Synonyms

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

• Acquired ichthyosis
• Acquired paraneoplastic ichthyosis
• Acute febrile neutrophilic dermatosis
• Acute febrile neutrophilic dermatosis due to neoplastic disease
• Ampulla of Vater surgical margin, involved by tumor
• Ampulla of Vater surgical margin, involved by tumor
• Ampulla of Vater, distal pancreatic surgical margin, involved by tumor
• Ampulla of Vater, posterior retroperitoneal pancreatic surface surgical margin, involved by tumor
• Anal, deep radial surgical margin not involved by tumor
• Anal, distal surgical margin not involved by tumor
• Anal, proximal surgical margin not involved by tumor
• Anaplasia absent
• Annular tumor configuration
• Anterior margin of tumor located anterior to equator of globe
• Arthritis secondary to malignancy
• Arthritis secondary to non-hematological malignancy
• Brachial plexus neuropathy due to neoplasm
• Carcinoma-associated retinopathy
• Cervical margins indeterminate for tumor involvement
• Chorea due to paraneoplastic syndrome
• Chronic tubulointerstitial nephritis due to neoplastic disease
• Circumscribed tumor border
• Comedo tumor pattern
• Complete obstructing tumor
• Coronary artery occlusion due to neoplastic disease
• Cribriform tumor pattern
• Cystic tumor configuration
• Cystic, entirely encapsulated tumor
• Cystic, partially encapsulated tumor
• Deep radial periureteral soft tissue surgical margin, involved by tumor
• Deep surgical margin involvement by tumor present
• Dementia due to paraneoplastic encephalitis
• Dermatomyositis with malignant disease
• Diencephalic syndrome
• Diencephalic syndrome secondary to tumor
• Diffuse anaplasia
• Diffuse tumor configuration
• Disorder of lumbosacral plexus due to neoplastic disease
• Disorder of optic chiasm due to non-pituitary neoplasm
• Distal pancreatic surgical margin, involved by tumor
• Distal ureteral surgical margin, involved by tumor
• Distance of tumor from anal verge unknown
• Ectopic aldosterone secretion
• Ectopic aldosterone-producing neoplasm
• Endophytic tumor configuration
• Esophageal surgical margin, involved by tumor
• Esophageal surgical margin, involved by tumor
• Esophageal surgical margin, involved by tumor
• Esophagus, distal surgical margin, involved by tumor
• Esophagus, proximal surgical margin, involved by tumor
• Esophagus, radial surgical margin, involved by tumor
• Estrogen receptor positive tumor
• Excavated lesion of tumor
• Exophytic tumor configuration
• Expansile tumor configuration
• Extent of tumor involvement not specified
• Extrascleral tumor extension present
• Familial neoplastic disease
• Feminization due to tumor
• Flat tumor
• Flat tumor lesion
• Focal anaplasia
• Frond-like/villous tumor
• Fungating tumor
• Gerota's fascial surgical margin, involved by tumor
• Glomerular disease due to neoplastic disease
• Heart surgical margin, involved by tumor
• Hemolytic anemia due to nonlymphoid neoplasm
• Hemorrhagic tumor
• Hormone receptor negative neoplasm
• Hormone receptor positive tumor
• Hypercortisolism due to nonpituitary tumor
• Hypermelanosis due to ACTH/MSH-secreting tumor
• Hypermelanosis due to neoplasia
• Hypertrophic osteoarthropathy
• Immunodeficiency secondary to neoplasm
• Infiltrative tumor configuration, macroscopic
• Intraductal tumor configuration
• Intraepithelial neoplasia due to human papillomavirus
• Intratumoral/peritumoral lymphocytic response absent
• Intratumoral/peritumoral lymphocytic response marked
• Intratumoral/peritumoral lymphocytic response mild to moderate
• Involvement of tumor by anaplasia indeterminate
• Juvenile polymyositis
• Juvenile polymyositis due to paraneoplastic syndrome
• Kidney, ureteral surgical margin, involved by tumor
• Large intestine surgical margin, involved by tumor
• Large intestine, deep radial surgical margin not involved by tumor
• Large intestine, deep radial surgical margin, involved by tumor
• Large intestine, distal surgical margin not involved by tumor
• Large intestine, distal surgical margin, involved by tumor
• Large intestine, proximal surgical margin not involved by tumor
• Large intestine, proximal surgical margin, involved by tumor
• Large tumor
• Left parametrial surgical margin, involved by tumor
• Left ventricular outflow tract obstruction due to neoplasm
• Limbic encephalitis
• Local tumor spread
• Localized tumor configuration
• Lung surgical margin, involved by tumor
• Lung, attached tissue surgical margin, involved by tumor
• Lung, bronchial surgical margin, involved by tumor
• Lung, parenchymal surgical margin, involved by tumor
• Lung, vascular surgical margin, involved by tumor
• Malignant neoplasm detection during interval between recommended screening examinations
• Margin involvement indeterminate
• Marked peritumoral lymphocytic response
• Masquerade syndrome
• Mass of thoracic vertebrae
• Melanocytic neoplasm
• Microcalcifications in tumor and non-neoplastic tissue present
• Microcalcifications in tumor present
• Micropapillary tumor pattern
• Microvascular patterns present in tumor
• Mild to moderate peritumoral lymphocytic response
• Mixed endophytic and exophytic tumor configuration
• Multifocal tumor
• Multiple cranial nerve palsies in neoplastic disease
• Myelopathy due to malignant neoplastic disease
• Myelopathy due to neoplastic disease
• Myelopathy due to neoplastic disease
• Myelopathy due to neoplastic disease
• Myelopathy due to neoplastic disease
• Myopathy due to paraneoplastic syndrome
• Myopathy due to paraneoplastic syndrome
• Necrotic tumor
• Necrotizing cutaneous vasculitis
• Neoplasm and/or hamartoma
• Neoplasm of bone of sacrum
• Neoplasm of cervical vertebra
• Neoplasm of fibula
• Neoplasm of left femur
• Neoplasm of lumbar vertebra
• Neoplasm of thoracic vertebra
• Neoplasm of ulna
• Neoplastic complication of procedure
• Neoplastic disease
• Neoplastic masquerade syndrome
• Neoplastic sequelae of disorders
• Nerve root and plexus compressions in neoplastic disease
• No additional pathologic finding in tumor specimen
• No direct extension of malignant neoplasm identified
• No peritumoral lymphocytic response
• No regional lymph node metastasis
• Non-diabetic hypoglycemia
• Non-viable tumor present in specimen
• Obstruction of aortic valve due to neoplasm
• Obstruction of inferior vena cava
• Obstruction of mitral valve due to neoplasm
• Obstruction of pulmonary valve due to neoplasm
• Obstruction of superior vena cava
• Obstruction of superior vena cava
• Obstruction of superior vena cava due to neoplasm
• Obstruction of tricuspid valve due to neoplasm
• Occlusion of inferior vena cava
• Occlusion of inferior vena cava due to neoplasm
• Occlusion of superior vena cava
• Occlusion of superior vena cava due to neoplasm
• Opsoclonus-myoclonus syndrome
• Osteitis deformans in neoplastic disease
• Ovarian surgical margin, involved by tumor
• Pancreatic surgical margin, involved by tumor
• Papillary tumor configuration
• Paraneoplastic autonomic dysfunction
• Paraneoplastic cerebellar degeneration
• Paraneoplastic encephalitis
• Paraneoplastic encephalomyelitis
• Paraneoplastic fever
• Paraneoplastic hypertrophic osteoarthropathy
• Paraneoplastic hypokalemia
• Paraneoplastic hyponatremia
• Paraneoplastic limbic encephalitis
• Paraneoplastic motor neurone disease
• Paraneoplastic myoclonus
• Paraneoplastic myositis
• Paraneoplastic neuropathy
• Paraneoplastic neuropathy
• Paraneoplastic neuropathy
• Paraneoplastic neuropathy
• Paraneoplastic opsoclonus myoclonus syndrome
• Paraneoplastic peripheral neuropathy
• Paraneoplastic pruritus
• Paraneoplastic retinopathy
• Paraneoplastic retinopathy
• Paraneoplastic sensorimotor neuropathy
• Paraneoplastic sensory neuropathy
• Paraneoplastic subacute necrotic myelopathy
• Paraneoplastic syndrome
• Paraneoplastic vasculitis
• Partial obstructing tumor
• Pathologic fracture of ankle at site of neoplasm
• Pathologic fracture of bone at site of neoplasm
• Pathologic fracture of bone of foot at site of neoplasm
• Pathologic fracture of bone of hand at site of neoplasm
• Pathologic fracture of cervical vertebra at site of neoplasm
• Pathologic fracture of clavicle at site of neoplasm
• Pathologic fracture of femur at site of neoplasm
• Pathologic fracture of femur at site of neoplasm
• Pathologic fracture of femur at site of neoplasm
• Pathologic fracture of fibula at site of neoplasm
• Pathologic fracture of humerus at site of neoplasm
• Pathologic fracture of lumbar vertebra at site of neoplasm
• Pathologic fracture of pelvis at site of neoplasm
• Pathologic fracture of pelvis at site of neoplasm
• Pathologic fracture of proximal femur at site of neoplasm
• Pathologic fracture of radius at site of neoplasm
• Pathologic fracture of sacral vertebra at site of neoplasm
• Pathologic fracture of scapula at site of neoplasm
• Pathologic fracture of tibia at site of neoplasm
• Pathologic fracture of ulna at site of neoplasm
• Pathologic fracture of vertebra at site of neoplasm
• Pathologic fracture of vertebra at site of neoplasm
• Pathologic fracture of vertebra at site of neoplasm
• Pathologic fracture of vertebra at site of neoplasm
• Pathologic fracture of vertebra at site of neoplasm
• Pathological fracture - hand
• Pathological fracture - hand
• Pathological fracture - hand
• Pathological fracture - upper arm
• Pathological fracture - upper arm
• Pathological fracture - upper arm
• Pathological fracture of ankle
• Pathological fracture of bone of right hand due to neoplastic disease
• Pathological fracture of cervical vertebra
• Pathological fracture of clavicle
• Pathological fracture of clavicle
• Pathological fracture of fibula
• Pathological fracture of left clavicle
• Pathological fracture of left clavicle due to neoplastic disease
• Pathological fracture of left femur
• Pathological fracture of left femur
• Pathological fracture of left femur due to neoplastic disease
• Pathological fracture of left hand
• Pathological fracture of left hand due to neoplastic disease
• Pathological fracture of left hip
• Pathological fracture of left humerus
• Pathological fracture of left humerus due to neoplasm
• Pathological fracture of left tibia
• Pathological fracture of left tibia due to neoplastic disease
• Pathological fracture of left ulna
• Pathological fracture of left ulna due to neoplasm
• Pathological fracture of lumbar vertebra
• Pathological fracture of pelvis
• Pathological fracture of pelvis
• Pathological fracture of proximal end of femur
• Pathological fracture of proximal end of femur
• Pathological fracture of proximal end of femur
• Pathological fracture of proximal left femur due to neoplastic disease
• Pathological fracture of proximal right femur due to neoplastic disease
• Pathological fracture of radius
• Pathological fracture of radius
• Pathological fracture of right femur
• Pathological fracture of right femur
• Pathological fracture of right femur due to neoplastic disease
• Pathological fracture of right foot
• Pathological fracture of right foot due to neoplastic disease
• Pathological fracture of right hand
• Pathological fracture of right hip
• Pathological fracture of right humerus
• Pathological fracture of right humerus due to neoplasm
• Pathological fracture of right radius
• Pathological fracture of right radius due to neoplasm
• Pathological fracture of right tibia
• Pathological fracture of right tibia due to neoplasm
• Pathological fracture of sacral vertebra
• Pathological fracture of scapula
• Pathological fracture of thoracic vertebra
• Pathological fracture of thoracic vertebra due to neoplastic disease
• Pathological fracture of tibia
• Pathological fracture of tibia
• Pathological fracture of tibia
• Pathological fracture of ulna
• Pathological fracture of ulna
• Pathological fracture of vertebra
• Pathological fracture of vertebra
• Pathological fracture of vertebra
• Pathological fracture of vertebra
• Pathological fracture of vertebra
• Pathology examination findings indeterminate
• Pericarditis secondary to neoplasia
• Pericarditis secondary to primary tumor
• Peritumoral lymphocytic response finding
• Peritumoral lymphocytic response finding
• Peritumoral lymphocytic response finding
• Pigmented tumor
• Plasma cell dyscrasia with polyneuropathy
• Pleura, bronchial surgical margin, involved by tumor
• Pleura, chest wall surgical margin, involved by tumor
• Pleura, diaphragmatic surgical margin, involved by tumor
• Pleura, esophageal surgical margin, involved by tumor
• Pleura, extrapleural chest wall surgical margin, involved by tumor
• Pleura, mediastinal surgical margin, involved by tumor
• Pleura, pericardial surgical margin, involved by tumor
• Pleura, pulmonary vascular surgical margin, involved by tumor
• Pleura, tracheal surgical margin, involved by tumor
• Pleura, vertebral body surgical margin, involved by tumor
• Pleural effusion due to another disorder
• Pleural effusion due to neoplastic disease
• Pleural surgical margin, involved by tumor
• Polymyositis
• Primary site synchronous tumor finding
• Primary site synchronous tumors present
• Progesterone receptor negative neoplasm
• Progesterone receptor positive tumor
• Prostate surgical margin, involved by tumor
• Prostate, apical surgical margin, involved by tumor
• Prostate, deep radial surgical margin, involved by tumor
• Prostate, seminal vesicle base surgical margin, involved by tumor
• Prostate, urethral surgical margin, involved by tumor
• Protruding tumor lesion
• Proximal pancreatic surgical margin, involved by tumor
• Proximal renal margin, partial nephrectomy only, involved by tumor
• Proximal ureteral surgical margin, involved by tumor
• Pulmonary venous hypertension due to compression of pulmonary great vein
• Pulmonary venous hypertension due to compression of pulmonary great vein by neoplasm
• Pushing tumor border
• Radiculopathy due to neoplastic disease
• Raised tumor
• Rectum, deep surgical margin, focal, involved by tumor
• Rectum, deep surgical margin, involved by tumor
• Rectum, deep surgical margin, multifocal, involved by tumor
• Rectum, inferior lateral surgical margin, involved by tumor
• Rectum, lateral surgical margin, involved by tumor
• Rectum, left lateral surgical margin, involved by tumor
• Rectum, right lateral surgical margin, involved by tumor
• Rectum, superior lateral surgical margin, involved by tumor
• Rectum, unknown surgical margin, involved by tumor
• Recurrent neoplasm
• Regional lymph nodes cannot be assessed
• Regression involving 75 percent or more of tumor, present
• Regression involving less than 75 percent of tumor, present
• Regression of tumor absent
• Renal capsular surgical margin, involved by tumor
• Renal pelvis surgical margin, involved by tumor
• Renal tubulo-interstitial disorders in neoplastic diseases
• Residual tumor present
• Restriction of coronary artery orifice due to neoplasm
• Right parametrial surgical margin, involved by tumor
• Right ventricular outflow tract obstruction due to neoplasm
• Rupture of neoplasm
• Secondary cerebellar degeneration
• Seminal vesicle absent in tumor specimen
• Sequelae of neoplastic diseases
• Size of base of tumor on transillumination cannot be determined
• Small tumor
• Solid tumor configuration
• Solid, entirely encapsulated tumor
• Solid, partially encapsulated tumor
• Specimen involvement by macroscopic tumor present
• Spinal cord compression due to neoplasm
• Stomach surgical margin, involved by tumor
• Stomach, distal surgical margin, involved by tumor
• Stomach, mesenteric surgical margin, involved by tumor
• Stomach, proximal surgical margin, involved by tumor
• Subacute necrotic myelopathy
• Surgical bronchial margin involved by tumor
• Surgical circumferential margin finding
• Surgical circumferential margin finding
• Surgical circumferential margin involvement by tumor cannot be assessed
• Surgical circumferential margin involvement by tumor not applicable
• Surgical deep margin involvement by tumor cannot be assessed
• Surgical distal margin involved by tumor
• Surgical distal margin involvement by tumor cannot be assessed
• Surgical lateral margin involved by tumor
• Surgical margin involved by tumor
• Surgical margin involvement by tumor absent
• Surgical margin involvement by tumor cannot be assessed
• Surgical margin involvement by tumor indeterminate
• Surgical margin involvement by tumor not applicable
• Surgical margin of optic nerve involved by tumor
• Surgical margin of renal vessel involved by tumor
• Surgical margin uninvolved by tumor
• Surgical posterior retroperitoneal pancreatic margin involved by tumor
• Surgical spermatic cord margin involved by tumor
• Surgical spermatic cord margin involvement by tumor cannot be assessed
• Surgical spermatic cord margin uninvolved by tumor
• Testis surgical margin, involved by tumor
• Thrombosis of inferior vena cava
• Thrombosis of vena cava
• Thyroid surgical margin, involved by tumor
• Tissue specimen fragmented
• Tricuspid valve regurgitation due to carcinoid tumor
• Tricuspid valve regurgitation due to carcinoid tumor
• Tricuspid valve stenosis due to carcinoid tumor
• Tricuspid valve stenosis due to carcinoid tumor
• Tricuspid valve stenosis with insufficiency
• Tricuspid valve stenosis with regurgitation due to carcinoid tumor
• Trophoblast, hysterectomy cervical/vaginal surgical margin, involved by tumor
• Trophoblast, hysterectomy surgical margin, involved by tumor
• Tumor border behavior finding
• Tumor border behavior finding
• Tumor border behavior finding
• Tumor border behavior finding
• Tumor calcification
• Tumor configuration
• Tumor configuration cannot be determined
• Tumor confined within capsule
• Tumor contained within organ capsule
• Tumor embolus
• Tumor extends to organ capsule
• Tumor flare
• Tumor hyperprogression
• Tumor infiltration by lymphocytes absent
• Tumor infiltration by lymphocytes brisk
• Tumor infiltration by lymphocytes non-brisk
• Tumor infiltration by lymphocytes present
• Tumor involvement of noncontiguous structures absent
• Tumor location after sectioning cannot be determined
• Tumor location cannot be determined
• Tumor metastasis to non-regional lymph nodes not applicable
• Tumor necrosis absent
• Tumor necrosis cannot be determined
• Tumor nodule site cannot be assessed
• Tumor nodule size cannot be assessed
• Tumor of advanced extent
• Tumor of indeterminate configuration
• Tumor of minimal extent
• Tumor of moderate extent
• Tumor of unknown origin
• Tumor pigmentation cannot be determined
• Tumor pigmentation indeterminate
• Tumor pigmentation, diffuse
• Tumor pigmentation, patchy/focal
• Tumor progression
• Tumor pseudoprogression
• Tumor regression finding
• Tumor regression finding
• Tumor regression finding
• Tumor site cannot be determined
• Tumor site indeterminate
• Tumor site not applicable
• Tumor site not specified
• Tumor size after sectioning cannot be determined
• Tumor size cannot be assessed
• Tumor size cannot be assessed, specimen fragmented
• Tumor size finding
• Tumor size finding
• Tumor size finding
• Tumor size finding
• Tumor size finding
• Tumor size finding
• Tumor size finding
• Tumor size finding
• Tumor size finding
• Tumor size finding
• Tumor size not applicable
• Tumor size, invasive component, cannot be determined
• Tumor stage cannot be determined
• Tumor surgically resectable
• Tumor surgically unresectable
• Tumor thrombus of inferior vena cava
• Tumor ulceration absent
• Tumor-induced hypoglycemia
• Ulcerated tumor configuration
• Unifocal tumor
• Unpigmented tumor
• Upper aerodigestive tract surgical margin, involved by tumor
• Ureter, renal pelvis surgical margin, involved by tumor
• Ureteral surgical margin, involved by tumor
• Ureteral surgical margin, involved by tumor
• Ureteral surgical margin, involved by tumor
• Ureteral surgical margin, involved by tumor
• Uterine cervix surgical margin, involved by tumor
• Vaginal surgical margin, involved by tumor
• Vascularization of tumor tissue
• Very large tumor
• Viable tumor present in specimen
• Visual cortex disorder due to neoplasm
• Visual pathway disorder due to neoplasm
• Vitreous cells
• X-linked immunodeficiency with magnesium defect, Epstein-Barr virus infection and neoplasia

Clinical Information

• Paraneoplastic Cerebellar Degeneration

  cerebellar degeneration associated with a remote neoplasm. clinical manifestations include progressive limb and gait ataxia; dysarthria; and nystagmus, pathologic. the histologic type of the associated neoplasm is usually carcinoma or lymphoma. pathologically the cerebellar cortex and subcortical nuclei demonstrate diffuse degenerative changes. anti-purkinje cell antibodies (anti-yo) are found in the serum of approximately 50% of affected individuals. (adams et al., principles of neurology, 6th ed, p686)

• Limbic Encephalitis

  a paraneoplastic syndrome marked by degeneration of neurons in the limbic system. clinical features include hallucinations, loss of episodic memory; anosmia; ageusia; temporal lobe epilepsy; dementia; and affective disturbance (depression). circulating anti-neuronal antibodies (e.g., anti-hu; anti-yo; anti-ri; and anti-ma2) and small cell lung carcinomas or testicular carcinoma are frequently associated with this syndrome.

• Dermatomyositis

  a subacute or chronic inflammatory disease of muscle and skin, marked by proximal muscle weakness and a characteristic skin rash. the illness occurs with approximately equal frequency in children and adults. the skin lesions usually take the form of a purplish rash (or less often an exfoliative dermatitis) involving the nose, cheeks, forehead, upper trunk, and arms. the disease is associated with a complement mediated intramuscular microangiopathy, leading to loss of capillaries, muscle ischemia, muscle-fiber necrosis, and perifascicular atrophy. the childhood form of this disease tends to evolve into a systemic vasculitis. dermatomyositis may occur in association with malignant neoplasms. (from adams et al., principles of neurology, 6th ed, pp1405-6)

• Polymyositis

  diseases characterized by inflammation involving multiple muscles. this may occur as an acute or chronic condition associated with medication toxicity (drug toxicity); connective tissue diseases; infections; malignant neoplasms; and other disorders. the term polymyositis is frequently used to refer to a specific clinical entity characterized by subacute or slowly progressing symmetrical weakness primarily affecting the proximal limb and trunk muscles. the illness may occur at any age, but is most frequent in the fourth to sixth decade of life. weakness of pharyngeal and laryngeal muscles, interstitial lung disease, and inflammation of the myocardium may also occur. muscle biopsy reveals widespread destruction of segments of muscle fibers and an inflammatory cellular response. (adams et al., principles of neurology, 6th ed, pp1404-9)

• Paraneoplastic Cerebellar Degeneration

  a rare, immune-mediated disorder characterized by cerebellar degeneration due to the presence of an often undetected malignancy (usually carcinoma or lymphoma) in an anatomic site other than the cerebellum. signs and symptoms include progressive ataxia, dysarthria, and nystagmus.

• Limbic Encephalitis

  a rare disorder characterized by degenerative changes in the limbic area of the brain. causes include infections and autoimmune conditions; it may also manifest as a paraneoplastic syndrome, most often caused by small cell lung carcinoma. signs and symptoms include behavioral changes, hallucinations and dementia.

• Adult Primary Meningeal Melanocytic Neoplasm|Primary Meningeal Melanocytic Neoplasm

  a primary meningeal melanocytic neoplasm that occurs in adults.

• BAP1-Inactivated Skin Melanocytic Neoplasm|BAP1-Deficient Tumor|BAP1-Inactivated Cutaneous Melanocytic Neoplasm|BAP1-Inactivated Cutaneous Melanocytic Tumor|BAP1-Inactivated Melanocytic Neoplasm|BAP1-Inactivated Melanocytic Tumor|BAPoma|BIMT

  a group of cutaneous melanocytic neoplasms that includes the combined bap1-inactivated nevus and the bap1-inactivated melanocytoma.

• Central Nervous System Melanocytic Neoplasm|CNS Melanocytic Neoplasm|CNS Melanocytic Tumor|Central Nervous System Melanocytic Neoplasms|Central Nervous System Melanocytic Tumor|Melanocytic Neoplasm of CNS|Melanocytic Neoplasm of Central Nervous System|Melanocytic Neoplasm of the CNS|Melanocytic Neoplasm of the Central Nervous System|Melanocytic Tumor of CNS|Melanocytic Tumor of Central Nervous System|Melanocytic Tumor of the CNS|Melanocytic Tumor of the Central Nervous System

  a primary tumor of the central nervous system that arises from leptomeningeal melanocytes. it may present as a diffuse proliferative leptomeningeal process (often as a component of the neurocutaneous melanosis complex) or as a distinct mass lesion.

• Circumscribed Meningeal Melanocytic Neoplasm|Circumscribed Meningeal Melanocytic Tumor

  a circumscribed neoplasm that arises from leptomeningeal melanocytes. this category includes meningeal melanocytoma, meningeal melanoma, and meningeal melanocytoma of intermediate grade.

• Head and Neck Melanocytic Neoplasm

  a melanocytic neoplasm that arises from the skin or mucosal sites in the head and neck region.

• Malignant Melanotic Peripheral Nerve Sheath Tumor|MMNST|Malignant Melanocytic Neoplasm of Peripheral Nerve Sheath|Malignant Melanocytic Neoplasm of the Peripheral Nerve Sheath|Malignant Melanocytic Peripheral Nerve Sheath Tumor|Malignant Melanotic Nerve Sheath Tumor|Malignant Melanotic Schwannian Tumor|Melanocytic MPNST|Melanotic MPNST

  a rare variant of malignant peripheral nerve sheath tumor. it is characterized by the presence of malignant cells that contain melanin.

• Melanocytic Neoplasm

  a benign or malignant, primary or metastatic neoplasm affecting the melanocytes.

• Primary Meningeal Melanocytic Neoplasm

  a benign, intermediate, or malignant circumscribed or diffuse neoplasm that arises from melanocytes in the leptomeninges. it includes meningeal melanocytoma, meningeal melanoma, meningeal melanocytoma of intermediate grade, and meningeal melanocytosis.

• Skin Melanocytic Neoplasm|Cutaneous Melanocytic Neoplasm|Melanocytic Neoplasm of Skin|Melanocytic Skin Neoplasm

  a neoplasm that arises from melanocytes in the skin.

• Vulvar Melanocytic Neoplasm

  a neoplasm that originates from melanocytes and arises from the vulva. this category includes congenital and acquired melanocytic nevus, blue nevus, dysplastic melanocytic nevus, atypical melanocytic nevus, genital type, and melanoma.

D49.9 is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together diagnosis codes for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on their principal diagnosis in areas referred to as Major Diagnostic Categories (MDC). Once a patient is assigned a particular diagnostic category, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care for that patient. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Convert D49.9 to ICD-9-CM

• ICD-9-CM Code: 239.9 - Neoplasm NOS

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.

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.