Activating EGFR Gene Mutation Negative

**Semantic type:** Laboratory or Test Result

**Definition:** A genetic finding indicating that mutations in the EGFR gene which encode constitutively active forms of the epidermal growth factor receptor protein are not present in a sample.

**Synonyms:** - Activating EGFR Mutation Negative - Activating ERBB Mutation Negative - Activating ERBB1 Mutation Negative - Activating HER1 Mutation Negative - Activating c-erbB1 Mutation Negative - EGFR Activating Mutation Negative - Epidermal Growth Factor Receptor Activating Mutation Negative