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Id1. Date2015‑11‑13 14:08:46
StatusKyellow.png DraftVersion Label1st rev. (2013)
Nameicd-o-3-mDisplay NameICD-O-3 Morphology
DescriptionInternational classification of diseases / oncology, morphological part for typing of benign and malignant tumors. The morphology axis provides six-digit codes ranging from 8000/0 to 9989/3. The first four digits indicate the specific histological term, i.e. morphology (8000 through 9992). In developing the previous editions and the present edition of ICD-O, a particular effort was made to use the nomenclature appearing in the World Health Organization 

International Histological Classification of Tumours series (WHO “Blue Books”) 7

. This series covers all the principal sites of cancer and includes the morphology codes of ICD-O for each neoplasm. All new histological classifications or modifications have been made by the WHO / IARC in so-called "Blue Books" by  2011 are listed on-line: http://codes.iarc.fr/changes.php.
The fifth digit after a slash (/) is the behavior code, which indicates whether a tumor is malignant, benign, in situ, or uncertain (whether benign or malignant).
A separate, 6th, one-digit code may also be given for histologic 4-tiered grading (differentiation) or for the cell type in lymphatic neoplasia.  
The fifth and the sixth digit are coded separately in value sets and
A valid code from the code system:
Code System NameCode System IdCode System Version
 International Classification of Diseases for Oncology, version
Or one of the following:
2 Source Code Systems
2.16.840.1.113883.6.43.1 - International Classification of Diseases for Oncology, version 3. - urn:oid:2.16.840.1.113883.6.43.1
2.16.840.1.113883.5.1008 - Null Flavor - http://terminology.hl7.org/CodeSystem/v3-NullFlavor
Level/ TypeCodeCode System

Asked but unknown
Null Flavor
Legenda: Type L=leaf, S=specializable, A=abstract, D=deprecated. NullFlavors to appear in @nullFlavor attribute instead of @code. NullFlavor OTH (other) suggests text in originalText.