ICD-10-CM for Well-Woman Exams: What Every Practice Must Get Right Accurate ICD-10-CM coding for well-woman exams is critical for clean claims and timely reimbursements. Payers closely review diagnosis selection, preventive vs problem-oriented visits, and documentation alignment. Even small coding errors can lead to denials, underpayments, or post-payment reviews. Medical Billers and Coders (MBC) provides clear, up-to-date guidance on ICD-10-CM requirements for well-woman exams, helping practi