Avoiding Allergy Coding Denials: Documentation and Billing Best Practices

Course Description

Allergy testing and immunotherapy services are highly scrutinized by payers due to complex coding rules, strict documentation requirements, and frequent audit activity. This in-depth webinar is designed to provide billing professionals, coders, practice managers, and clinical staff with a clear, practical understanding of how to accurately code, document, and bill allergy testing and treatment services in a compliant manner.

The session begins with an overview of common allergy testing and treatment modalities, including skin prick testing, intradermal testing, patch testing, and serum (IgE) testing. Participants will also review the core components of allergy immunotherapy, including subcutaneous immunotherapy (SCIT), antigen preparation, and injection administration. Special emphasis will be placed on understanding per-test, unit-based, and time-based billing methodologies.

Attendees will learn how to correctly assign codes for allergy testing, immunotherapy injections, and antigen preparation. The webinar will outline essential documentation elements needed to support medical necessity, test performance, results, and immunotherapy administration, ensuring records are audit-ready.

Common billing and coding errors, bundling rules, and payer expectations will be reviewed, along with high-risk audit red flags. Through real-world case scenarios, participants will gain practical strategies to reduce denials, improve reimbursement accuracy, and strengthen collaboration between billing and clinical teams.

Learning Outcomes

• Understand types of allergy testing and immunotherapy services
• Apply correct CPT/HCPCS codes and modifiers
• Identify required documentation for compliant billing (with documentation templates)
• Recognize common billing errors and audit risks (comprehensive audit check lists)
• Improve collaboration between billing and clinical teams

Areas Covered in the Session

• Skin prick, intradermal, patch, and serum testing
• SCIT immunotherapy services
• Per-test, unit-based billing rules
• CPT coding for testing, injections, and antigen preparation
• Modifier usage and bundling considerations
• Documentation standards for medical necessity and results including E&M services
• Audit red flags and denial prevention strategies
• Live Q&A Session

Recommended Participants

• Medical coders
• Billing professionals
• Compliance and audit professionals
• Revenue cycle staff
• Allergists and immunologists
• Nurse practitioners and physician assistants
• Practice managers and clinic administrators
• Denials and appeals specialists
• Revenue integrity professionals
• Healthcare consultants specializing in specialty billing

Elizaveta Bannova, CPC, CPCO, CPMA, CFPC Billing department Educational Specialist, WCH Service Bureau With 19 years of experience in billing and auditing, she has been supporting the healthcare industry by helping providers address insurance auditing challenges, improve medical record documentation, and enhance EHR systems. Her expertise extends to compliance oversight, staff and provider education, and ensuring accuracy with all applicable laws and regulations. She has consistently streamlined workflows, strengthened revenue integrity, and reduced compliance risks while enabling providers to focus on patient care. Education Officer at AAPC International Chapter, Member of AMBA Areas of Expertise: Internal Medicine, Osteopathy, Diagnostic Studies, Wound Care, Durable Medical Equipment (DME), Optometry and Ophthalmology, Physical and Occupational Therapy, Mental Health, Podiatry, Article 31&32, Cardiology, Urology.

Additional Information