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We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-220866, 333-223992, 333-230270, 333-237031) and Form S-3 (No. 333-236389) of Deciphera Pharmaceuticals, Inc. of our report dated February 9, 2021 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.