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International Classification of Diseases for Oncology

Encyclopedia : I : IN : INT : International Classification of Diseases for Oncology


The International Classification of Diseases for Oncology (ICD-O) is a domain specific extension of the International Statistical Classification of Diseases and Related Health Problems for tumor diseases. This classification is widely used by cancer registries.

It is currently in its third revision.

Axes

The classification has two axes:

Morphology

The morphology axis is for the morphology of the tumor.

This axis has additional importance, because the Systematized Nomenclature of Medicine has adopted ICD-O's classification of morphology.

Examples of codes

(8000-8009)
(8010-8790) Epithelial
(8800-9370)
(9380-9589)
  • (9530-9539) Meningiomas
(9590-9999) Hematologic (
--
  • (9830-9839) Plasma cell leukemia
  • * (M[9831/3]) T-cell large granular lymphocytic leukemia
  • * (M[9833/3]) B-cell prolymphocytic leukemia
  • * (M[9834/3]) T-cell prolymphocytic leukemia
  • * (M[9835/3]) Precursor B lymphoblastic leukemia
  • * (M[9837/3]) Precursor T lymphoblastic leukemia
--
-- Other

Topography

The topography axis is for the topographical codes of the tumor's site. It is standardized with the C section of ICD-10

There were no changes in the topography axis between ICD-O-2 and ICD-O-3.

See List of ICD-10 codes#.28C00-C97.29 Malignant Neoplasms for examples.

See also

External links

Topography

Morphology

Tumors (and related structures), Cancer, and Oncology
Benign - Premalignant - Carcinoma in situ - Malignant

Topography: Anus - Bladder - Bone - Brain - Breast - Cervix - Colon/rectum - Duodenum - Endometrium - Esophagus - Eye - Gallbladder - Head/Neck - Liver - Larynx - Lung - Mouth - Pancreas - Penis - Prostate - Kidney - Ovaries - Skin - Stomach - Testicles - Thyroid

Morphology: Papilloma/carcinoma - Adenoma/adenocarcinoma - Soft tissue sarcoma - Melanoma - Fibroma/fibrosarcoma - Lipoma/liposarcoma - Leiomyoma/leiomyosarcoma - Rhabdomyoma/rhabdomyosarcoma - Mesothelioma - Angioma/angiosarcoma - Osteoma/osteosarcoma - Chondroma/chondrosarcoma - Glioma - Lymphoma/leukemia

Treatment: Chemotherapy - Radiation therapy - Immunotherapy - Experimental cancer treatment

Related structures: Cyst - Dysplasia - Hamartoma - Neoplasia - Nodule - Polyp - Pseudocyst

Misc: Tumor suppressor genes/oncogenes - Staging/grading - Carcinogenesis/metastasis - Carcinogen - Research - Paraneoplastic phenomenon - ICD-O - List of oncology-related terms

 


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