Definition of Malignant Neoplasms Of Digestive Organs: A primary malignant neoplasm involving any part of the gastrointestinal system.
Exclusions:
Definition of Malignant neoplasms of oesophagus: A primary malignant neoplasm involving the oesophagus
2B70 Malignant neoplasms of oesophagus
Exclusions:
2B70.0 Adenocarcinoma of oesophagus
Definition of Adenocarcinoma of oesophagus: A malignant tumour with glandular differentiation arising predominantly from Barrett mucosa in the lower third of the esophagus. Grossly, esophageal adenocarcinomas are similar to esophageal squamous cell carcinomas. Microscopically, adenocarcinomas arising in the setting of Barrett esophagus are typically papillary and/or tubular. The prognosis is poor.
2B70.00 Barrett adenocarcinoma
Definition of Barrett adenocarcinoma: Barrett adenocarcinoma is defined as adenocarcinoma of lower oesophagus and gastroesophageal junction associated with Barrett’s oesophagus.
2B70.0Y Other specified adenocarcinoma of oesophagus
2B70.0Z Adenocarcinoma of oesophagus unspecified
2B70.1 Squamous cell carcinoma of oesophagus
Definition of Squamous cell carcinoma of oesophagus: A squamous cell carcinoma arising from the esophagus. It can be associated with a long history of tobacco and alcohol abuse and is exceedingly rare before the age of 30. The median age is around 65 in both males and females, but the incidence in males is much higher than in females. It is located mostly in the middle and lower third of the esophagus. Grossly, polypoid, ulcerated, plaque-like and occult lesions have been described. The microscopic features are the same as in other squamous cell carcinomas. Any degree of differentiation may occur, and variation within a single tumour is common. The prognosis is poor.
2B70.Y Other specified malignant neoplasms of oesophagus
2B70.Z Malignant neoplasms of oesophagus unspecified
Definition of Malignant neoplasms of oesophagus unspecified: Malignant neoplasms that arise from the cells of the oesophagogastric junction (OGJ), which is defined as the point at which the oesophagus ends and the stomach begins. This mainly defines adenocarcinomas that straddle the junction of the oesophagus and stomach. This definition includes many tumours formally called cancers of the gastric cardia.
2B71 Malignant neoplasms of oesophagogastric junction
Exclusions:
2B71.0 Adenocarcinoma of oesophagogastric junction
Definition of Adenocarcinoma of oesophagogastric junction: An adenocarcinoma that arises from and straddles the junction of the stomach and esophagus. The category of adenocarcinomas of the gastroesophageal junction also includes the majority of adenocarcinomas previously called gastric cardia adenocarcinomas. Squamous cell carcinomas that affect or cross the junction of the stomach and esophagus are classified as carcinomas of the distal esophagus. Adenocarcinoma of the gastroesophageal junction occurs more often in Caucasian middle aged and elderly males. Clinical signs and symptoms include dysphagia, abdominal pain, and weight loss. The prognosis depends on the completeness of the surgical resection, the number of lymph nodes involved by cancer, and the presence or absence of postoperative complications.
2B71.Y Other specified malignant neoplasm of oesophagogastric junction
2B71.Z Malignant neoplasms of oesophagogastric junction unspecified
Definition of Malignant neoplasms of oesophagogastric junction unspecified: A primary or metastatic malignant neoplasm involving the stomach.
2B72 Malignant neoplasms of stomach
Exclusions:
Coded Elsewhere:
2B72.0 Adenocarcinoma of stomach
Definition of Adenocarcinoma of stomach: An adenocarcinoma arising from the stomach glandular epithelium. Gastric adenocarcinoma is primarily a disease of older individuals. It most commonly develops after a long period of atrophic gastritis and is strongly associated with Helicobacter pylori infection. The lack of early symptoms often delays the diagnosis of gastric cancer. The majority of patients present with advanced tumours which have poor rates of curability. Microscopically, two important histologic types of gastric adenocarcinoma are recognised: the intestinal and diffuse type. The overall prognosis of gastric adenocarcinomas is poor, even in patients who receive a curative resection.
2B72.1 Malignant neuroendocrine neoplasm of stomach
Definition of Malignant neuroendocrine neoplasm of stomach: A neoplasm with neuroendocrine differentiation that arises from the stomach. It includes well differentiated neuroendocrine tumours (low and intermediate grade) and poorly differentiated neuroendocrine carcinomas (high grade).
Inclusions:
Coded Elsewhere:
2B72.Y Other specified malignant neoplasms of stomach
2B72.Z Malignant neoplasms of stomach unspecified
Exclusions:
Definition of Malignant neoplasms of small intestine: A primary malignant neoplasm involving the small intestine.
2B80 Malignant neoplasms of small intestine
Exclusions:
Coded Elsewhere:
2B80.0 Malignant neoplasms of duodenum
Definition of Malignant neoplasms of duodenum: A primary malignant neoplasm that affects the duodenum. Representative examples include carcinoma, lymphoma, and sarcoma.
Coded Elsewhere:
2B80.00 Adenocarcinoma of duodenum
Definition of Adenocarcinoma of duodenum: An adenocarcinoma that arises from the duodenum.
2B80.01 Neuroendocrine neoplasm of duodenum
Definition of Neuroendocrine neoplasm of duodenum: Neoplasms that arise from the cells of neuroendocrine system lining the duodenum.
2B80.0Y Other specified malignant neoplasms of the duodenum
2B80.0Z Malignant neoplasms of duodenum unspecified
2B80.1 Malignant neoplasms of jejunum or ileum
2B80.10 Adenocarcinoma of jejunum or ileum
2B80.11 Neuroendocrine neoplasms of jejunum or ileum
Definition of Neuroendocrine neoplasms of jejunum or ileum: Neoplasms that arise from the cells of neuroendocrine system lining the jejunum or ileum including well-differentiated (low- to intermediated grade) neuroendocrine tumours. These include carcinoid tumour.
2B80.1Y Other specified malignant neoplasms of jejunum or ileum
2B80.1Z Malignant neoplasms of jejunum or ileum unspecified
2B80.2 Malignant neoplasms of small intestine site unspecified
2B80.20 Adenocarcinoma of small intestine site unspecified
Definition of Adenocarcinoma of small intestine site unspecified: A malignant tumour with glandular differentiation arising from epithelium of small intestine.
Exclusions:
Neuroendocrine neoplasms of small intestine, site unspecified (2B80.21)
2B80.21 Neuroendocrine neoplasms of small intestine site unspecified
Definition of Neuroendocrine neoplasms of small intestine site unspecified: Neoplasms that arise from the cells of neuroendocrine system lining the small intestine.
2B80.2Y Other specified malignant neoplasms of small intestine site unspecified
2B80.Y Other specified malignant neoplasms of small intestine
2B80.Z Malignant neoplasms of small intestine unspecified
Definition of Malignant neoplasms of small intestine unspecified: A primary malignant neoplasm that affects the appendix.
2B81 Malignant neoplasms of appendix
Exclusions:
Coded Elsewhere:
2B81.0 Adenocarcinoma of appendix
Definition of Adenocarcinoma of appendix: A malignant neoplasm arising from the glandular epithelium of the appendix. Most are mucinous adenocarcinomas.
2B81.1 Mucinous adenocarcinoma of appendix
Definition of Mucinous adenocarcinoma of appendix: An adenocarcinoma, often cystic, with large amounts of extracellular mucin
2B81.2 Neuroendocrine neoplasms of appendix
Definition of Neuroendocrine neoplasms of appendix: Malignant neoplasms with neuroendocrine differentiation that arise in the appendix. Most are well differentiated neuroendocrine tumours (low and intermediate grade), i.e. carcinoids. Poorly differentiated neuroendocrine carcinomas (high grade) are exceedingly rare.
2B81.Y Other specified malignant neoplasms of appendix
2B81.Z Malignant neoplasms of appendix unspecified
Definition of Disorders Of The Thyroid Gland Or Thyroid Hormones System: Disorders due to dysfunction…
Definitions of Certain Disorders Involving The Immune System: Disorders in which disturbed immune regulation plays…
Coded Elsewhere: Immunodeficiencies with predominantly antibody defects (4A01.0)Combined immunodeficiencies (4A01.1)Defects in the complement system (4A00.1)Diseases…
Definition of Allergic Or Hypersensitivity Conditions: Allergy is a hypersensitivity reaction initiated by a proven…
Coded Elsewhere: Schnitzler syndrome (EB03) Monogenic autoinflammatory syndromes Definition of Monogenic autoinflammatory syndromes: Monogenic hereditary…
Coded Elsewhere: Rheumatoid arthritis (FA20) Lupus erythematosus Definition of Lupus erythematosus: An autoimmune non-organ specific…