The Department's Children's page states that "All Behavioral Modification and Consultation (BMC) services will transition to Behavioral Intervention (BI) services. BMC and BI services are often both referred to and known by members as Applied Behavioral Analysis (ABA) services" (healthandwelfare.idaho.gov, Children's Developmental Disabilities providers page, last updated 10-8-2026). The governing rule, IDAPA 16.03.10, and the Medicaid fee schedule could not be retrieved, so no rule date or rate is stated.
Magellan Healthcare stopped managing the predecessor service and Telligen began issuing authorizations on December 1, 2025. A Telligen notice also states a signature requirement for CHIS prior authorization requests effective May 1, 2026, but the notice text on the page was truncated. Confirm current authorization requirements with Telligen and the Department.
The reimbursement criteria at a glance
- Is ABA covered by Idaho Medicaid
- Who is eligible
- Who may provide, and who bills
- Billing codes: the CPT-to-H-code crosswalk
- Place of service
- Fee for service, prior authorization, and concurrent billing
- Practices with in-house diagnostics versus ABA-only practices
- How this connects to the rest of your compliance stack
- Getting set up to bill Idaho Medicaid: the sequence
- What this guide could not verify
- Idaho reimbursement variables at a glance
- Frequently asked questions
- Where professional advice is essential
Is ABA covered by Idaho Medicaid
Yes, under a different name. The Department describes Intervention Services as State Plan services: "Intervention services focus on helping children build important life skills and address developmental needs," including habilitative skill development and "Behavioral Intervention Support to reduce challenging behaviors and encourage positive behaviors." Support services sit under the 1915(i) State Plan Option (Department Children's page). The governing rule text and its effective date were not retrieved.
Who is eligible
"Children's Habilitation Intervention Services (CHIS) is available for members with Medicaid who are birth through the month of their 21st birthday and demonstrate a need for Intervention Services" (CHIS member page, last updated 1-5-2026). The separate Children with Disabilities Program covers ages birth through 17 with a disability diagnosis under the Social Security Act and functional impairments assessed with the Vineland Adaptive Behavior Scales, and it is not the ABA benefit itself (Department application page).
Who may provide, and who bills
"Children's Habilitation Intervention Services can be provided by Developmental Disabilities Agencies (DDAs) or Independent Providers" (CHIS member page). The billing code H0004 TG "allows the Evidence Based Model (EBM) Intervention Professional, also known as a Board Certified Behavior Analysts (BCBA), to directly modify a treatment protocol," and when directing a technician, "the provider overseeing the technician is the billing provider, not the technician" (Department Children's page). Agency certification and independent provider qualification rules (IDAPA) were not read.
Billing codes: the CPT-to-H-code crosswalk
Idaho Medicaid crosswalks ABA CPT codes to state H codes. The Department's page maps 97153 to H0004 with TG, TF, or no modifier depending on who delivers it, 97154 to H0005, 97155 and 97156 to H0004 with TG or TF, 97157 and 97158 to H0005 with TG or TF, and 97151 to H0032 with TG or TF (Department Children's page crosswalk table). When Medicaid is a secondary payer, "providers must bill the primary insurance carrier using the appropriate Applied Behavioral Analysis codes, most commonly 97151-97159," and then bill Idaho Medicaid after receiving the explanation of benefits. Dollar rates for H0004, H0005, H0032, and the 9715x codes were not retrieved.
Place of service
"Services can be delivered in settings that are comfortable and natural for the child": the child's home, community locations such as parks, schools, or childcare settings, and center-based programs. The child must be present to bill: "No, the child must be present to bill behavior intervention codes." (Department Children's page) No telehealth rule for Behavioral Intervention was found on a retrieved official page.
Fee for service, prior authorization, and concurrent billing
"Effective December 1, 2025, BMC services will no longer be managed by Magellan Healthcare." "Providers must be contracted with Gainwell Technologies to bill Idaho Medicaid directly and must be registered with Telligen's Provider Portal to submit and obtain authorizations." Active Magellan authorizations ceased November 30, 2025, Telligen issues new BI authorizations, and authorizations expiring between December 1, 2025 and March 1, 2026 were extended to March 1, 2026. Concurrent billing of BI codes is not allowed (Department Children's page). Hour or unit limits were not stated on any retrieved page.
Practices with in-house diagnostics versus ABA-only practices
The pages read do not set a referral or diagnosis rule for Behavioral Intervention beyond demonstrated need, so this guide does not draw the fork for Idaho. Confirm who must document need and who must supply the plan with the Department and Telligen.
How this connects to the rest of your compliance stack
The entity analysis is on the Idaho entity page.
Getting set up to bill Idaho Medicaid: the sequence
- Choose the provider route. A certified Developmental Disabilities Agency or an independent provider.
- Contract with Gainwell Technologies. Required to bill Idaho Medicaid directly.
- Register with Telligen's Provider Portal. Required to submit and obtain authorizations.
- Map your codes. Use the H-code crosswalk and the TG, TF, and other modifiers.
- Bill the primary carrier first where one exists. Then bill Medicaid after the explanation of benefits.
What this guide could not verify
- The governing rule text and effective date (IDAPA 16.03.10). The state's rules site failed the secure connection.
- Dollar rates for H0004, H0005, H0032, and the 9715x codes. The fee schedule page returned HTTP 404 and the publicdocuments host failed the secure connection.
- Telehealth rules and hour or unit limits for Behavioral Intervention.
- Developmental Disabilities Agency certification and independent provider qualification rules.
- Whether Idaho has a commercial autism or ABA insurance mandate. A domain-limited search of the legislature's and Department of Insurance's sites returned no Title 41 autism coverage section, but absence was not confirmed from a fetched official source.
Idaho reimbursement variables at a glance
| Variable | Idaho value |
|---|---|
| ABA covered by Medicaid? | Yes, as Behavioral Intervention within CHIS (State Plan) |
| Age | Birth through the month of the 21st birthday, with demonstrated need |
| Payment | Fee for service; claims to Gainwell; prior authorization through Telligen |
| Providers | DDAs or independent providers; BCBA as EBM Intervention Professional for H0004 TG |
| Rates | Not verified |
| Settings | Home, community locations including schools and childcare, center-based programs; child must be present |
| Concurrent billing | Not allowable for BI codes |
| Commercial mandate | Not verified |
Frequently asked questions
Does Idaho Medicaid cover ABA?
Who pays and who authorizes?
Can a technician bill?
Is there a commercial mandate?
Where professional advice is essential, not optional
Idaho's rules sit in Department pages that changed administrators recently, and the underlying rule and rates were not readable. Bring in a billing specialist to work from the current fee schedule, Telligen's requirements, and the Gainwell contract.
The governing authorities to know are Children's Habilitation Intervention Services and IDAPA 16.03.10.
This page describes rules read from the Idaho Department of Health and Welfare's own pages and Telligen's provider portal. The governing rule and fee schedule could not be read. The Department, the Department of Insurance, and each payor provide current requirements. Do not rely on this page or any secondary source in place of direct verification.