Complex Indiana Medicaid, MCE, and Commercial Payer Rules
Indiana providers work across Indiana Medicaid (IHCP), Managed Care Entities (MCEs) such as Anthem Medicaid, MDwise, and CareSource, Medicare Part B Indiana, and commercial insurers including Anthem Blue Cross Blue Shield, UnitedHealthcare, Humana, Cigna, and Aetna.
Each program has its own rules for prior authorization, service limits, telehealth coding, behavioral-health documentation, IHCP benefit limits, and MCE-specific billing edits.
Common issues include incorrect MCE selection, outdated Medicaid codes, missing PAs, incomplete behavioral-health documentation, wrong taxonomy codes, and mismatched modifier requirements. Even small differences between MCEs cause preventable denials when practices apply the wrong policies.
Indiana Medicaid (IHCP) and MCE Policy Updates
IHCP updates fee schedules, telemedicine allowances, modifier rules, age-specific limits, prior authorization policies, and billing edits multiple times per year.
Anthem, MDwise, CareSource, and commercial plans also adjust their guidelines frequently.
When providers continue using outdated IHCP or MCE rules, they face reduced units, lower payment rates, suspended claims, and retroactive recoupments. Therapy, pediatric, behavioral-health, and primary-care practices are impacted the most when changes roll out without notice.
Authorization and Treatment-Plan Conflicts
Indiana has strict authorization rules across IHCP and MCEs. Problems include:
- Expired authorizations
- Missing or unsigned treatment plans
- Incorrect CPT/ICD-10 pairings
- Unverified authorization units
- Billed units exceeding approved limits
- Dates billed outside approved ranges
These errors lead to partial payments or complete denials across Indiana Medicaid, Anthem Medicaid, MDwise, CareSource, Medicare Indiana, and commercial plans.
Strict Therapy, Telehealth, and Behavioral-Health Rules
Indiana enforces limits on PT, OT, Speech, ABA, outpatient counseling, substance-use services, and pediatric EPSDT-based care.
Common denial triggers include:
- Incorrect therapy modifiers
- Telehealth modifiers or place-of-service errors
- Missing measurable goals
- Outdated or unsigned treatment plans
- Insufficient progress-note detail
- Billing more units than IHCP allows
These issues cause recurring denials, especially for therapy and behavioral-health programs.
Coordination-of-Benefits and Coverage Mismatches
COB issues are frequent when Medicare crossover files fail, commercial policies change mid-month, or IHCP updates plan assignments.
Common problems:
- Claims submitted to the wrong primary
- Incorrect secondary payer setup
- Suspended crossover claims
- Duplicate COB rejections
- Delayed secondary payments
These mismatches cause repeated rebilling and extended A/R cycles for Indiana clinics.
A/R Aging From Extended Reprocessing Cycles
A/R increases when IHCP or MCEs push claims into manual review, request additional documentation, or require reconsiderations.
Slowdowns occur due to:
- Rate discrepancies
- Missing encounter-level detail
- Unresolved authorization questions
- Claims requiring multi-payer coordination
Therapy, behavioral health, pediatric, and multi-site specialty groups often see the longest delays.
Audit Exposure From Indiana Medicaid and MCE Reviews
- Indiana audits focus heavily on:
- Time-based therapy codes
- Accuracy of units billed
- Telehealth documentation
- Signed notes and plans of care
- Medical necessity
- EPSDT requirements
- Behavioral-health note completeness
- Encounter accuracy
Common audit flags include missing signatures, inaccurate time logs, outdated plans, incomplete group-therapy documentation, and mismatched CPT/ICD-10 combinations.
Provider Enrollment and Revalidation Issues
Indiana providers frequently experience:
- Incorrect taxonomy selection
- Missing NPI linkages
- New providers not appearing on payer rosters
- Expired revalidation dates
- Locations not enrolled or inactive
- Rendering providers not linked to billing groups
These issues trigger “provider not enrolled,” “taxonomy conflict,” and “location inactive” denials.
Technical Rejections From IHCP, MCEs, and Clearinghouses
Technical rejections often arise from:
- Wrong MCE selection
- Incorrect taxonomy
- Missing attachments
- Invalid dates linked to authorizations
- Clearinghouse format errors
- Invalid place-of-service for telehealth
These rejections prevent claims from reaching payers and create repeated rework.