What is a neoplasm of uncertain behavior
Elijah King
Updated on May 05, 2026
When the behavior of a tumor cannot be predicted through pathology, it is called a neoplasm of uncertain behavior. These are neoplasms which are currently benign but have characteristics that make it possible for the tumor to become malignant.
What is the difference between neoplasm and cancer?
Cancer is a neoplasm that can grow rapidly, spread, and cause damage to the body. A malignant neoplasm is cancerous, while a metastatic neoplasm is malignant cancer that has spread to nearby or distant areas of the body.
What causes a neoplasm?
Causes of neoplastic disease In general, cancerous tumor growth is triggered by DNA mutations within your cells. Your DNA contains genes that tell cells how to operate, grow, and divide. When the DNA changes within your cells, they don’t function properly. This disconnection is what causes cells to become cancerous.
What is the difference between neoplasm of uncertain and unspecified?
uncertain behavior is a dx that is rendered by the pathologist when the cellular activity observed is uncertain at to its morphology. Unspecified is sometimes called a working dx, and is used when a preliminary diagnostic workup is inconclusive, most commonly used when the decision comes back as a tumor.Does neoplasm mean cancer?
An abnormal mass of tissue that forms when cells grow and divide more than they should or do not die when they should. Neoplasms may be benign (not cancer) or malignant (cancer).
How do you treat neoplasm?
- Surgery. Benign tumors can be surgically removed. …
- Chemotherapy. These drugs are administered to kill cancer cells and/or to stop their growth and spread.
- Radiation Therapy. …
- Ablation. …
- Embolization. …
- Hormonal Therapy. …
- Immunotherapy.
Does neoplasm of uncertain behavior mean cancer?
When the behavior of a tumor cannot be predicted through pathology, it is called a neoplasm of uncertain behavior. These are neoplasms which are currently benign but have characteristics that make it possible for the tumor to become malignant.
What is neoplasm of uncertain behavior of thyroid gland?
Thyroid tumors include a heterogeneous group of entities with variable clinical behavior and histology, mostly classified as benign or malignant. Neoplasm of uncertain or unknown behavior in thyroid gland was newly adopted by the 2017 edition of World Health Organization (WHO) classification of endocrine organs.What does uncertain behavior mean in medical terms?
What is uncertain behavior? In addition to being labelled as malignant or benign, some neoplasms are categorized as having uncertain behavior. This means your doctor needs more information to determine whether your neoplasm is malignant or benign. In other words, they don’t know whether it has the potential to spread.
When do you code neoplasm of uncertain behavior?5 Neoplasm of uncertain behavior of skin should only be used when the pathologist cannot determine if a neoplasm is benign or malignant. It is a specific code to be utilized after a histologic determination has been made, not a code to be used at the time the sample is obtained.
Article first time published onHow do neoplasms spread?
When cancer spreads, it’s called metastasis. In metastasis, cancer cells break away from where they first formed, travel through the blood or lymph system, and form new tumors in other parts of the body. Cancer can spread to almost anywhere in the body. But it commonly moves into your bones, liver, or lungs.
What are the risk factors of neoplasms?
- Older age.
- A personal or family history of cancer.
- Using tobacco.
- Obesity.
- Alcohol.
- Some types of viral infections, such as human papillomavirus (HPV)
- Specific chemicals.
- Exposure to radiation, including ultraviolet radiation from the sun.
How do you test for neoplasm?
Imaging tests used in diagnosing cancer may include a computerized tomography (CT) scan, bone scan, magnetic resonance imaging (MRI), positron emission tomography (PET) scan, ultrasound and X-ray, among others. Biopsy. During a biopsy, your doctor collects a sample of cells for testing in the laboratory.
Is neoplasm curable?
The sooner a malignant neoplasm is detected, the more effectively it can be treated, so early diagnosis is important. Many types of cancer can be cured. Treatment for other types can allow people to live for many years with cancer.
What does suspicious for neoplasm mean?
Suspicious for follicular neoplasm is a term pathologists use to describe a tumour in the thyroid gland. This diagnosis is usually made after a procedure called a fine-needle aspiration (FNA). Suspicious for follicular neoplasm is a preliminary diagnosis that includes both non-cancerous and cancerous conditions.
What are the types of neoplasms?
ICD-10 classifies neoplasms into four main groups: benign neoplasms, in situ neoplasms, malignant neoplasms, and neoplasms of uncertain or unknown behavior. Malignant neoplasms are also simply known as cancers and are the focus of oncology.
What is the difference between neoplasm and melanoma?
Nonmelanoma skin cancer can refer to any cancer that forms in the basal, squamous or Merkel cells of the skin. Melanoma is a cancer that develops in the skin’s melanocytes. Let’s take a closer look at these skin cancers and how they differ from one another.
How is malignant neoplasm diagnosed?
The term “malignant neoplasm” means that a tumor is cancerous. A doctor may suspect this diagnosis based on observation — such as during a colonoscopy — but usually a biopsy of the lesion or mass is needed to tell for sure whether it is malignant or benign (not cancerous).
Are most skin cancers treatable?
See a suspicious spot, see a dermatologist Found early, skin cancer is highly treatable. Often a dermatologist can treat an early skin cancer by removing the cancer and a bit of normal-looking skin. Given time to grow, treatment for skin cancer becomes more difficult.
Can a CT scan tell if a tumor is benign?
A CT scan can be wrong: it can’t tell the difference between cancerous tissue and non-cancerous tissue.
What is the largest group of malignant neoplasms?
Primary and metastatic carcinomas are epithelial in origin and comprise by far the largest group of malignant tumors in humans.
What is a benign neoplasm?
A benign tumor is an abnormal but noncancerous collection of cells also called a benign neoplasm. Benign tumors can form anywhere on or in your body, but many don’t need treatment. Talk to a healthcare provider if you have any unusual growth, signs of a possible tumor or changes in symptoms.
Are all cancers carcinomas?
Not all cancers are carcinoma. Other types of cancer that aren’t carcinomas invade the body in different ways. Those cancers begin in other types of tissue, such as: Bone.
What is primary malignant neoplasm?
Definition. A malignant tumor at the original site of growth. [ from NCI]
What is the most common cutaneous neoplasm?
Basal cell and squamous cell carcinomas are by far the most common cutaneous malignancies. Malignant melanoma is less common and is much more aggressive. This review article covers the recognition, diagnosis, and treatment of less common cutaneous and subcutaneous malignancies.
What percentage of thyroid follicular neoplasms are benign?
The diagnosis “follicular neoplasm” is indeterminate, and the majority of cases (70% in the current study) are benign. However, clinical features, including gender, nodule size, and age, can be a part of the decision analysis in selecting patients for surgery.
Are adenomas always benign?
Adenomas are generally benign or non cancerous but carry the potential to become adenocarcinomas which are malignant or cancerous. As benign growths they can grow in size to press upon the surrounding vital structures and leading to severe consequences.
Is toxic goiter cancerous?
Sometimes, a person can have a goiter that has multiple nodules or bumps on it, which is called a multinodular goiter. A toxic goiter is one that makes too much thyroid hormone, resulting in a condition called hyperthyroidism. Most thyroid nodules are harmless, but some can be cancerous.
Can you code from pathology report in outpatient?
In outpatient coding, coders are allowed to code from the pathology and radiology reports without the attending/treating physician confirming the diagnosis. The pathologist and radiologist are physicians and as long as they have interpreted the tissue or test then it may be coded.
What is a neoplasm of the skin?
A Skin Neoplasm is an unusual growth of cells on your skin. Many times, the neoplasm is understood as synonymous of cancer. More commonly these are termed as tumours. This is the condition in which the cells continue to divide and grow when they should not.
What is the ICD 10 code for skin uncertain behavior?
Neoplasm of uncertain behavior of skin D48. 5 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.