Multi-Specialty Billing Reference
Expert guidance on CPT codes, modifiers, denial management, and regulatory updates. Always verify with your payer's current policy.
ABA CPT Code Reference Guide (97151–97158, H2019)
A complete reference for the ABA-specific CPT and HCPCS procedure codes used in Applied Behavior Analysis billing, including units, descriptions, and provider requirements.
Modifier Guide for ABA Billing (HO, HN, HM, U1–U9)
A comprehensive guide to the HCPCS modifiers used in ABA billing to identify provider credentials, supervision levels, and service settings.
Understanding Place of Service Codes for ABA
Learn which Place of Service (POS) codes to use for ABA services provided in clinics, homes, schools, and via telehealth.
Common ABA Claim Denial Reason Codes (CARC Reference)
A practical reference of the most frequently seen CARC (Claim Adjustment Reason Codes) for ABA claims, with plain-language explanations and recommended actions.
How to Appeal a Denied ABA Claim
Step-by-step guidance on the ABA claim appeals process — from identifying appealable denials to writing effective appeal letters.
Secondary Insurance Billing for ABA Services
How to coordinate benefits and bill secondary insurance after primary adjudication for ABA claims.
Medical Necessity Documentation for ABA Authorizations
What clinical documentation payers require to approve ABA authorizations and how to structure medical necessity justification.
RBT vs. BCBA Billing — Who Renders, Who Supervises
Understand the billing differences between RBTs and BCBAs in ABA, including supervision requirements and the impact on claims.
Telehealth Billing Rules for ABA Providers
Navigate the telehealth billing landscape for ABA services including applicable modifiers, place of service codes, and payer-specific policies.
Understanding EOBs and ERAs for ABA Practices
Learn how to read Explanation of Benefits (EOB) and Electronic Remittance Advice (ERA) documents for ABA claims and use them to reconcile payments.
Insurance Authorization Best Practices for ABA
Best practices for requesting, tracking, and managing ABA insurance authorizations to prevent claim denials and authorization gaps.
Diagnosis Codes Used in ABA (F84.0, F80.x, F90.x)
Reference guide for ICD-10-CM diagnosis codes commonly used in ABA claims, including autism spectrum disorder, communication disorders, and ADHD.
Billing for Assessment vs. Treatment (97151 vs. 97153)
Understand the key differences between billing for assessments (97151/97152) and treatment (97153/97155), including what documentation is required for each.
ABA Billing in 2025 — Regulatory Updates
Key ABA billing and reimbursement changes in 2025, including payer policy updates, state mandate changes, and CMS guidance.
How to Bill for BCBA Supervision vs. Direct Therapy
Understand when BCBA services are billed as supervision, when they are billed as direct therapy, and the documentation requirements for each.
Timely Filing Limits by Major Payer
Reference guide for timely filing deadlines at major commercial and Medicaid payers — and how to protect your practice when limits are tight.
Medical Record Retention Requirements for ABA Providers
How long ABA practices must retain patient records, billing documentation, and authorization records under HIPAA, federal, and state law.
Fee Schedule Negotiation for ABA Practices
How to negotiate better reimbursement rates with commercial payers — what leverage ABA practices have and what to include in your counter-proposal.
The ABA Revenue Cycle: From Service to Payment
A complete walkthrough of the ABA revenue cycle — from scheduling and authorization through claim submission, payment posting, and AR follow-up.
Credentialing and Payer Enrollment for ABA Providers
Step-by-step guide to credentialing ABA clinicians and enrolling your practice with commercial payers and Medicaid for in-network billing.
Streamline your ABA billing with Onvelas
From claim submission to ERA reconciliation, Onvelas automates the revenue cycle.
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