HCPCS code
Substance use case management
CMS description
Alcohol and/or drug services; case management
In the order to send them
Why these codes
Case management has its own STC; payers that don't return it answer under substance abuse.
If a payer returns nothing
Payers don't all answer every service type. Send 30 (Health Benefit Plan Coverage) for the plan's general benefits.
Sources
CMS HCPCS Level II descriptor; X12 HIPAA 5010 service type code definitions; VerifyTX billing practice