Service Encounter Reporting Instructions (SERI)

Current instructions

• SERI v2025.2 (effective July 1, 2025, unless otherwise specified)
• Crisis code guide for private insurance plans (updated October 7, 2024)

Previous instructions (July 2021-January 2025)

• SERI v2025 (effective January 1, 2025, unless otherwise specified)
• SERI v2025.1 interim guidance (effective January 1, 2025, unless otherwise specified)
• SERI v2024.1 interim guidance (effective July 1, 2024, unless otherwise specified) 
• SERI v2024.1 (effective on or before July 1, 2024 unless otherwise specified on page 139)
• SERI v2024 (effective on or before January 1, 2024)
• SERI interim guidance (effective January 11, 2024)
• SERI v2023 (effective on or before January 1, 2023)
• SERI interim guidance (effective July 19, 2023)
• SERI interim guidance (effective May 15, 2023)
• SERI v2022 (effective on or before July 1, 2022)
• SERI v2021 (effective July 1, 2021)

IMC SERI interim guidance

• January 2021
• January 2020
• June 2019

Previous guidance (July 2018-July 2019)

• SERI v2019.1 (effective July 1, 2019)
• SERI v2018.1 (effective July 1, 2018)

Training

2025 SERI various billing guides for behavioral health providers

• Tuesday, April 8 Applicability of SERI and Various Behavioral Health Billing Guides Webinar Slides
• Tuesday, April 8 Handout on Applicability of SERI and Various Behavioral Health Billing Guides

Resources

• CPT and reimbursement (American Academy of Child and Adolescent Psychiatry [AACAP])