EGFR Exon 19 Deletion Mutation Negative

**Semantic type:** Laboratory or Test Result

**Definition:** An indication that deletion mutations within exon 19 of the EGFR gene have not been detected in a sample.

**Synonyms:** - EGFR DEL19 Mutation Negative - EGFR Ex19Del Negative - EGFR Gene Exon 19 Deletion Mutation Negative - EGFR del19 Negative - ERBB Exon 19 Deletion Mutation Negative - ERBB1 Exon 19 Deletion Mutation Negative - Epidermal Growth Factor Receptor Gene Exon 19 Deletion Mutation Negative - HER1 Exon 19 Deletion Mutation Negative - c-erbB1 Exon 19 Deletion Mutation Negative