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=== Concept Classes === | === Concept Classes === | ||
There are three concept classes in ICDO3 vocabulary. | There are three concept classes in ICDO3 vocabulary. | ||
- | == ICDO Topography == | + | |
+ | **1. ICDO Topography** | ||
Concepts that represent various body sites. | Concepts that represent various body sites. | ||
- | ICDO Topography concepts correspond to malignant neoplastic Condition concepts in [[ICD10]] vocabulary and use the same 4 character alphanumeric codes. | + | ICDO Topography concepts correspond to codes of malignant neoplastic condition concepts in [[ICD10]] vocabulary and use the same 4 character alphanumeric codes. |
^ CONCEPT_CODE ^ VOCABULARY_ID ^ CONCEPT_NAME ^ CONCEPT_CLASS_ID ^ | ^ CONCEPT_CODE ^ VOCABULARY_ID ^ CONCEPT_NAME ^ CONCEPT_CLASS_ID ^ | ||
| C15.2 | ICDO3 | Abdominal esophagus | ICDO Topography | | | C15.2 | ICDO3 | Abdominal esophagus | ICDO Topography | | ||
| C15.2 | ICD10 | Malignant neoplasm: Abdominal part of oesophagus | ICD10 code | | | C15.2 | ICD10 | Malignant neoplasm: Abdominal part of oesophagus | ICD10 code | | ||
- | Benign neoplasms, in-situ neoplasms or neoplasms of uncertain behavior will still use same ICD10 codes for topography. | + | Benign neoplasms, in-situ neoplasms or neoplasms of uncertain behavior will still use same ICD10 codes for malignant neoplasm to represent topography. |
- | == ICDO Histology == | + | **2. ICDO Histology** |
Concepts that represent various morphologies of neoplastic diseases. Histology codes are built from 2 parts separated by slash. First part consists of 4 digits and encodes morphology. Last digits encodes behavior of the neoplasm. | Concepts that represent various morphologies of neoplastic diseases. Histology codes are built from 2 parts separated by slash. First part consists of 4 digits and encodes morphology. Last digits encodes behavior of the neoplasm. | ||
Some cancer registries may store behavior of the neoplasm in a separate field. In OMOP morphology and behavior are treated as a single combined entity. | Some cancer registries may store behavior of the neoplasm in a separate field. In OMOP morphology and behavior are treated as a single combined entity. | ||
- | == ICDO Condition == | + | **3. ICDO Condition** |
Concepts that are formed by combining Histology and Topography concepts together to represent actual disease. Since number of all possible combinations is enormous and no universal validation list exists, only limited number of valid combinations is included. | Concepts that are formed by combining Histology and Topography concepts together to represent actual disease. Since number of all possible combinations is enormous and no universal validation list exists, only limited number of valid combinations is included. | ||
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Some ICDO Condition concepts feature only Histology or only Topography, as seen from their names and codes. These codes are created for each existing histology and topography to accommodate for incomplete source data. | Some ICDO Condition concepts feature only Histology or only Topography, as seen from their names and codes. These codes are created for each existing histology and topography to accommodate for incomplete source data. | ||
- | ^ CONCEPT_CODE ^ CONCEPT_NAME ^ | + | ^ CONCEPT_CODE ^ CONCEPT_NAME ^ NOTE ^ |
- | | 8933/3-NULL | Neoplasm defined only by histology: Adenosarcoma| | + | |
- | | NULL-C50.9 | Neoplasm defined only by topography: Breast, NOS| | + | | 8933/3-NULL | Neoplasm defined only by histology: Adenosarcoma | Condition misses topography definition | |
+ | | NULL-C50.9 | Neoplasm defined only by topography: Breast, NOS| Condition misses histology definition | | ||
+ | | 8560/3-C34.9 | Adenosquamous carcinoma of lung, NOS | Fully defined condition | | ||
All ICDO conditions have equivalence mappings or hierarchical relations built to SNOMED concepts from SNOMED Clinical Finding sub-hierarchy. This way ICDO3 Condition concepts form seamless extension of SNOMED hierarchy. | All ICDO conditions have equivalence mappings or hierarchical relations built to SNOMED concepts from SNOMED Clinical Finding sub-hierarchy. This way ICDO3 Condition concepts form seamless extension of SNOMED hierarchy. | ||
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=== Standard status and hierarchy === | === Standard status and hierarchy === | ||
- | Since all concepts in ICDO3 vocabulary map to or form hierarchical relations with concepts in SNOMED CT, ICDO3 in OMOP can be seen as seamless extension of SNOMED hierarchy. Concepts without equivalency mappings are kept standard and have hierarchical relations to SNOMED concepts. No internal hierarchy for ICDO3 is created. | + | Since all concepts in ICDO3 vocabulary map to or form hierarchical relations with concepts in SNOMED CT, ICDO3 in OMOP can be seen as seamless extension of SNOMED hierarchy. Concepts without equivalence mappings are kept standard and have hierarchical relations to SNOMED concepts. No internal hierarchy for ICDO3 is created. |
=== Relationship === | === Relationship === | ||
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| ICDO Histology | Morph Abnormality | Observation | | | ICDO Histology | Morph Abnormality | Observation | | ||
| ICDO Condition | Clinical Finding | Condition | | | ICDO Condition | Clinical Finding | Condition | | ||
- | //Note: domain_id for topography concepts is currently assigned wrong and will be updated closest release// | + | //Note: domain_id for topography concepts is currently Observation and will be updated closest release// |
=== External links === | === External links === |