Products & Programs Long-Term Services & SupportsMedicaidApril 18, 2025

Community-based adult services member ID prefix guidance

Navigating the billing process for community‑based adult services (CBAS) facilities can be complex. Therefore, we have summarized important items below to help streamline your claims submissions and ensure timely payments.

Submitting claims:

  • When submitting claims, please ensure the member ID listed on the claim form matches the member ID on the approved authorization for services.
  • The member ID can be found on the front, left side of the ID card. You must include the 3‑byte prefix (for example, XDJ).

Billing prefixes:

  • Include the 3‑byte prefix of the member ID when submitting claims.
  • The prefixes available for the CBAS benefit are: 
    • JQC (MediCal prefix for L.A. County only. For example: JQC00000000A.)
    • XDJ (Medi‑Cal prefix for all Anthem counties except L.A. For example: XDJ00000000A.)

Billing codes for CBAS services

HCPCS code

Description

H2000

Comprehensive multidisciplinary evaluation

S5102

Day care services, adult; per diem

T1023

Screening to determine the appropriateness of consideration of an individual for participation in a specified program, project, or treatment protocol, per encounter

Contact us

Availity Chat with Payer is available during normal business hours. Get answers to your questions about eligibility, benefits, authorizations, claims status, and more. To access Availity Essentials, go to https://Availity.com, log in, and select the appropriate payer space tile from the drop‑down. Then, select Chat with Payer and complete the pre‑chat form to start your chat.

For additional support, visit the Contact Us section of our provider website for the appropriate contact.

Anthem Blue Cross is the trade name of Blue Cross of California. Anthem Blue Cross and Blue Cross of California Partnership Plan, Inc. are independent licensees of the Blue Cross Association. Blue Cross of California is contracted with L.A. Care Health Plan to provide Medi-Cal Managed Care services in Los Angeles County. Anthem is a registered trademark of Anthem Insurance Companies, Inc.

CABC-CD-076400-25