March 4, 2026 · Contraception · DOI: 10.1016/j.contraception.2026.111428

Evaluating the accuracy of CPT coding for inpatient second- and third-trimester labor induction abortion at a tertiary medical center

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The authors aimed to evaluate the accuracy of Current Procedural Terminology (CPT) codes used for billing inpatient second- and third-trimester labor induction abortions at a tertiary medical center. Their findings revealed that only 46% of encounters billed with specific CPT codes corresponded to clinically confirmed abortions, and only 11% of actual procedures were coded correctly, indicating significant misclassification and inconsistency in coding practices. This raises concerns about the reliability of billing datasets for research and policy related to abortion procedures.

Natalie DiCenzo, Sarah Kirshner, Mitchell D Creinin, Jennefer Russo

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