"Payment in Practice: 2025 OB/GYN Coding Manual serves as the primary billing and coding resource for obstetrician-gynecologists and their staff. For 2025, the manual has been modified with input from physicians and coders to enhance usability and provide unique billing information tailored for ob-gyn practices. The coding material is organized by systems and includes updates relevant to 2025. The material can be used for billing, coding, preauthorization requirements, claims appeals, and more. Additionally, the appendices include tables for quick reference of the coding guidelines in this manual. The manual follows established CPT guidelines and includes Medicare guideline information for accurately reporting medical procedures. It represents the expert opinions of ACOG staff and members of the ACOG Committee on Health Economics and Coding about the specific services included (or not included) in each ob-gyn procedure code listed. Updates in the 2025 edition include new CPT codes for audio-video, audio-only, and virtual check-in telemedicine visits; new CPT codes for intra-abdominal excision or destruction of tumor or cyst; new CPT codes for COVID-19 vaccine administration; new ICD-10-CM codes related to prophylactic removal of fallopian tube; new ICD-10-CM codes related to cannabis hyperemesis syndrome; and new guidelines for documenting social determinants of health"--