2024 ICD-10-CM Diagnosis Code D18.02

Hemangioma of intracranial structures

ICD-10-CM Code:
ICD-10 Code for:
Hemangioma of intracranial structures
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Neoplasms
    • Benign neoplasms, except benign neuroendocrine tumors
      • Hemangioma and lymphangioma, any site

D18.02 is a billable diagnosis code used to specify a medical diagnosis of hemangioma of intracranial structures. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

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

  • Cavernous hemangioma of brain
  • Diffuse cerebrovascular disease
  • Erythrocytosis due to cerebellar hemangioma
  • Hemangioma of intracranial structure
  • Hereditary cavernous hemangioma of brain
  • Intracranial cavernous hemangioma
  • Venous hemangioma
  • Venous hemangioma of brain

Clinical Classification

Clinical Information

  • Branchio-Oto-Renal Syndrome

    an autosomal dominant disorder manifested by various combinations of preauricular pits, branchial fistulae or cysts, lacrimal duct stenosis, hearing loss, structural defects of the outer, middle, or inner ear, and renal dysplasia. associated defects include asthenic habitus, long narrow facies, constricted palate, deep overbite, and myopia. hearing loss may be due to mondini type cochlear defect and stapes fixation. (jablonski's dictionary of syndromes & eponymic diseases, 2d ed)
  • Enchondromatosis

    benign growths of cartilage in the metaphyses of several bones.
  • Granuloma, Pyogenic

    a disorder of the skin, the oral mucosa, and the gingiva, that usually presents as a solitary polypoid capillary hemangioma often resulting from trauma. it is manifested as an inflammatory response with similar characteristics to those of a granuloma.
  • Hemangioma

    a vascular anomaly due to proliferation of blood vessels that forms a tumor-like mass. the common types involve capillaries and veins. it can occur anywhere in the body but is most frequently noticed in the skin and subcutaneous tissue. (from stedman, 27th ed, 2000)
  • Hemangioma, Capillary

    a dull red, firm, dome-shaped hemangioma, sharply demarcated from surrounding skin, usually located on the head and neck, which grows rapidly and generally undergoes regression and involution without scarring. it is caused by proliferation of immature capillary vessels in active stroma, and is usually present at birth or occurs within the first two or three months of life. (dorland, 27th ed)
  • Hemangioma, Cavernous

    a vascular anomaly that is a collection of tortuous blood vessels and connective tissue. this tumor-like mass with the large vascular space is filled with blood and usually appears as a strawberry-like lesion in the subcutaneous areas of the face, extremities, or other regions of the body including the central nervous system.
  • Hemangioma, Cavernous, Central Nervous System

    a vascular anomaly composed of a collection of large, thin walled tortuous veins that can occur in any part of the central nervous system but lack intervening nervous tissue. familial occurrence is common and has been associated with a number of genes mapped to 7q, 7p and 3q. clinical features include seizures; headache; stroke; and progressive neurological deficit.
  • Histiocytoma, Benign Fibrous

    a benign tumor composed, wholly or in part, of cells with the morphologic characteristics of histiocytes and with various fibroblastic components. fibrous histiocytomas can occur anywhere in the body. when they occur in the skin, they are called dermatofibromas or sclerosing hemangiomas. (from devita jr et al., cancer: principles & practice of oncology, 5th ed, p1747)
  • Kasabach-Merritt Syndrome

    rapidly growing vascular lesion along the midline axis of the neck, upper trunk, and extremities that is characterized by consumption coagulopathy; thrombocytopenia; and hemolytic anemia. it is often associated with infantile kaposiform hemangioendothelioma and other vascular tumors such as tufted angioma.
  • Pulmonary Sclerosing Hemangioma

    a benign neoplasm of pneumocytes, cells of the pulmonary alveoli. originally considered to be vascular in origin, it is now classified as an epithelial tumor with several elements, including solid cellular areas, papillary structure, sclerotic regions, and dilated blood-filled spaces resembling hemangioma.
  • Sturge-Weber Syndrome

    a non-inherited congenital condition with vascular and neurological abnormalities. it is characterized by facial vascular nevi (port-wine stain), and capillary angiomatosis of intracranial membranes (meninges; choroid). neurological features include epilepsy; cognitive deficits; glaucoma; and visual defects.
  • Blood Vessels

    any of the tubular vessels conveying the blood (arteries, arterioles, capillaries, venules, and veins).
  • Histiocytes

    macrophages found in the tissues, as opposed to those found in the blood (monocytes) or serous cavities (serous membrane).

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert D18.02 to ICD-9-CM

  • ICD-9-CM Code: 228.02 - Hemangioma intracranial

Patient Education

Benign Tumors

Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain.

Tumors are made up of extra cells. Normally, cells grow and divide to form new cells as your body needs them. When cells grow old, they die, and new cells take their place. Sometimes, this process goes wrong. New cells form when your body does not need them, and old cells do not die when they should. These extra cells can divide without stopping and may form tumor.

Treatment often involves surgery. Benign tumors usually don't grow back.

NIH: National Cancer Institute

[Learn More in MedlinePlus]


Birthmarks are abnormalities of the skin that are present when a baby is born. There are two types of birthmarks. Vascular birthmarks are made up of blood vessels that haven't formed correctly. They are usually red. Two types of vascular birthmarks are hemangiomas and port-wine stains. Pigmented birthmarks are made of a cluster of pigment cells which cause color in skin. They can be many different colors, from tan to brown, gray to black, or even blue. Moles can be birthmarks.

No one knows what causes many types of birthmarks, but some run in families. Your baby's doctor will look at the birthmark to see if it needs any treatment or if it should be watched. Pigmented birthmarks aren't usually treated, except for moles. Treatment for vascular birthmarks includes laser surgery.

Most birthmarks are not serious, and some go away on their own. Some stay the same or get worse as you get older. Usually birthmarks are only a concern for your appearance. But certain types can increase your risk of skin cancer. If your birthmark bleeds, hurts, itches, or becomes infected, call your health care provider.

[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.


[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.