Blue Cross Blue Shield of Montana

CommercialMT

ABA billing requirements · Source: Blue Cross Blue Shield of Montana — Medical Policy: ABA

High confidence

Verified 2026-03-16

Authorization Requirements

Requires prior auth Yes

Initial auth duration6 months

Renewal auth duration6 months

Submission deadline14 days

Unit tracking cadenceTotal

Requires FBA Yes

Diagnostic eval validity36 months

Re-eval cadenceEvery 6 months

BH carve-out managerCarelon

State licensure requiredBCBA state licensure required via MT Board of Behavioral Health

Documentation Requirements

Parent signatures required Yes

Start/stop times required Yes

Treatment plan componentsASD diagnosis, Functional Behavior Assessment, Baseline data, Measurable goals, Intervention strategies, Caregiver training plan

Progress summary cadenceEvery 6 months

Policy Notes

BCBS Montana is the independent BCBS licensee for Montana, covering ~300K members. ABA prior auth required. Behavioral health managed through Carelon. BCBA must be enrolled with BCBS MT.

CPT & Modifier Rules

CPT rules require a free account

View H-codes, modifiers, unit limits, and billing restrictions for Blue Cross Blue Shield of Montana.

Official policy source:Blue Cross Blue Shield of Montana — Medical Policy: ABA

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Data last verified: 2026-03-16 · Confidence: High · See our methodology

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