SNOMED Documentation Search
Source concepts which map to ICD-10 chapters with dagger and asterisk conventions will often be mapped to two target classification codes. The asterisk classification will be the second target record (mapGroup=2). The asterisk code will have applied advice of THIS CODE MAY BE USED IN THE PRIMARY POSITION WHEN THE MANIFESTATION IS THE PRIMARY FOCUS OF CARE.
111900000 | Pneumonia in aspergillosis (disorder)| maps to B44.1 Other pulmonary aspergillosis (dagger code) and J17.2 Pneumonia in mycoses (asterisk code):
20735004 | Syphilitic aortitis (disorder)| maps to A52.0, Cardiovascular syphilis and I79.1, Aortitis in diseases classified elsewhere:
307726001 | Anemia in ovarian carcinoma (disorder)| maps to C56, Malignant neoplasm of ovary, and D63.0, Anemia in neoplastic disease:
Dagger codes identified during tabular review which do not have a corresponding asterisk are called "virtual dagger" references. These do not require second target addition.
There may be instances where only an asterisk is provided in a map because the dagger information is unavailable in the SNOMED CT concept. In this instance, mapAdvice THIS MAP REQUIRES A DAGGER CODE AS WELL AS AN ASTERISK CODE is appended to the map to communicate to the end user the need to add an additional corresponding code.