EGFR Exon 20 Insertion Mutation Negative

**Semantic type:** Laboratory or Test Result

**Definition:** An indication that insertion mutations within exon 20 of the EGFR gene have not been detected in a sample.

**Synonyms:** - EGFR Gene Exon 20 Insertion Mutation Negative - EGFR ins20 Mutation Negative - ERBB Exon 20 Insertion Mutation Negative - ERBB1 Exon 20 Insertion Mutation Negative - Epidermal Growth Factor Receptor Gene Exon 20 Insertion Mutation Negative - HER1 Exon 20 Insertion Mutation Negative - c-erbB1 Exon 20 Insertion Mutation Negative