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20-507 Learn How to Bill ACEs Screening HCPCS Codes G9919 and G9920

Date: 06/22/20

Use the answers to your FAQs to avoid rejected claims and get faster payments 

The medical plan is responsible for paying HCPCS codes G9919 and G9920 for adverse childhood experiences (ACEs) screening services. The information in this update gives more detail on how to bill these screening services and where to send claims to the medical plan. 

HCFA CMS-1500 vs UB04 claim form

Continue to use the form you normally use to bill professional (CMS-1500) or facility (UB04) services. 

Mail paper claims to this address 

Use the address below to send paper claims through the U.S. Postal Service (USPS):

California Health & Wellness

Attention: Claims

PO Box 4080

Farmington, MO 63640-3835

Set up electronic transactions

For faster processing, set up electronic data interchange (EDI) to submit claims and receive electronic payments. Contact California Health & Wellness Plan (CHWP) EDI by telephone at 1-800-225-2573, ext. 6075525, or by email at

Resubmitting claims

You do not need to resubmit claims for G9919 and G9920 even if you have not received payment or either code was denied for participating physician group (PPG) risk. The medical plan is reviewing past claims to make retroactive adjustments for payments that may be due. 

Employed or independent clinicians

All impacted providers rendering ACEs specific services must ensure they individually take the state certified training and attest. This applies whether you are an employed or an independent provider. 

Note: The June 30 due date for state certified attestations are at the provider level and not the facility level.

Part of CCIPA

If you are contracted with Community Care Independent Practice Association (CCIPA), continue to send claims directly to them as normal except for ACEs codes G9919 and G9920. Both ACEs codes must be billed directly to the health plan. 

Reminders for time-sensitive due dates

Complete state mandatory certified training by end of June 2020 

To screen patients for ACEs, providers must complete a two-hour online training that focuses on trauma-informed care, the use of the ACEs questionnaire and the age-appropriate screening tool. Register for the training at

All of the certified ACEs training is validated by the state and the Department of Health Care Services (DHCS). DHCS will set up a website and make reports available which list who completed their certified ACEs training. 

Self-attest by July 1, 2020

For continued reimbursement after July 1, 2020, providers must self-attest to DHCS by completing the Trauma Screening Training Attestation form.

ACEs Aware Webinars

The link at the end of this paragraph offers previous webinars provided by ACEs Aware to help you learn more about the initiative and why providers should screen for ACEs. To view existing trainings on trauma-informed care or register for future trainings, visit the ACEs Aware website.


Access the provider updates below in Provider News after you log into the California Health & Wellness website or, you can access the Provider News directly.

Provider update Distribution date Update number
Receive Prop 56 Payments for ACEs Screenings March 27, 2020 20-320
Join ACEs Educational Webinars and Earn CE Credits May 8, 2020 20-368
Use These Guidelines to Improve Trauma-Informed Care to Patients with ACEs May 22, 2020 20-410

Additional information

Providers are encouraged to access CHWP’s provider portal online at for real-time information, including eligibility verification, claims status, prior authorization status, plan summaries, and more.

If you have questions regarding the information contained in this update, contact CHWP at 1-877-658-0305.