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Urinary Bladder

Following feedback from translation, descriptions for concepts that contain the word 'bladder' and the site of 89837001|Urinary bladder structure (body structure)| will be updated to include 'urinary' in the FSN and PT, for example:

126885006|Neoplasm of bladder (disorder)

will be updated to

126885006|Neoplasm of urinary bladder (disorder).

International Unit in Descriptions for Clinical Drugs

'International Unit' as a description is arbitrary and to be understood each product requires reference to a particular bioefficacy specification for that entity. Therefore, 'international' is not meaningful or comparable as a description at Clinical Drug level. International unit will be represented as 'unit' in Clinical Drug descriptions and 20 concepts will have their descriptions changed to 'unit'  Note: abbreviations will not be used. Editorial Guidance has been drafted.

Inactivation of  “RAST” and “RAST test” from subtypes of 104380004 |Allergen specific antibody measurement (procedure)|

Based on a proposal by the Allergies and Hypersensitivities CRG, descriptions containing “RAST” and “RAST test” will be inactivated from the concepts in this sub-hierarchy as they are not considered real synonyms.

Immunoassays for immunoglobulin specific to an allergen of interest are widely used in the diagnosis of allergic disease. These tests are often incorrectly referred to collectively as "radioallergosorbent tests" ("RAST") because they were the earliest immunoassays to be used extensively.

There are a few concepts of type "X mix radioallergosorbent test (procedure)", where RAST is in fact part of FSN. These concepts will be inactivated as they are ambiguous because they do not mention what allergens are being tested for. Replacement concepts, where individual allergens are spelled out, will be created where the information is available.