Allergy and Immunology Billing Services Across Skin Testing, Immunotherapy, Biologics, and Allergy Diagnostics
Allergy and immunology billing requires correct unit counts on every skin test, concurrent preparation and administration fee capture on every immunotherapy encounter, and biologic J-code accuracy with prior authorization management on every high-cost drug claim. MBC allergy billing services and immunology billing services handle every revenue stream your practice generates, including the immunotherapy preparation fees and biologics administration codes that generalist billing companies routinely miss.
Performance data from MBC-managed allergy practices, immunology clinics, and allergy diagnostic centers nationwide
Allergy and Immunology Billing Losses Most Practices Never Fully Quantify
Allergy billing revenue loss accumulates from three simultaneous failure points: skin test unit undercounting because billing teams default to panel estimates instead of documented test counts, immunotherapy preparation fees omitted because billing captures only the injection administration code, and biologics revenue lost to expired or missing prior authorizations. Each failure repeats on every encounter and compounds into annual losses that practices attribute to payer issues rather than billing workflow gaps.
Current Regulatory Updates Affecting Allergy and Immunology Billing
Three Policy Changes Directly Impacting Allergy Billing Services Revenue Right Now
CMS Prior Authorization Rules and Commercial Payer Biologic Step Therapy Requirements
CMS finalized new prior authorization transparency requirements affecting Medicare Advantage and Medicaid plans, with commercial payer biologic step therapy policies imposing increasingly specific treatment failure documentation before Xolair, Dupixent, Fasenra, Nucala, and Cinqair are authorized.
AMA CPT Immunotherapy Code Revisions and Allergen Extract Preparation Billing Changes
AMA CPT revisions to allergen immunotherapy codes have updated the descriptor requirements for extract preparation billing (95165, 95145-95149) and modified the concurrent billing rules for preparation and administration fees.
CY2026 Allergy Testing and Immunotherapy RVU Adjustments Affecting Reimbursement Rates
CMS finalized RVU adjustments for allergy skin testing codes and allergen immunotherapy administration codes in the CY2026 Physician Fee Schedule.
Allergy Billing Services and Immunology Medical Billing Challenges
Why Generic Allergy Billing Services Miss the Revenue Your Practice Actually Earns
These are the revenue cycle failures unique to allergy and immunology billing, and exactly where non-specialist allergy billing claim management leaves the most revenue uncaptured encounter after encounter.
Allergy Skin Test Unit Undercounting on Every Testing Encounter
Allergy skin test billing uses unit-based codes billed per individual test performed.
Immunotherapy Preparation Fees Omitted on Injection Encounters
Allergen immunotherapy billing has two separately reimbursable components: the extract preparation fee (95165 for multi-dose vials or 95145-95149 for single-dose) and the injection administration fee (95115 for a single injection, 95117 for two or more).
Biologics Revenue Lost to Prior Authorization Failures and J-Code Errors
Biologic therapy billing for Xolair, Dupixent, Fasenra, Nucala, and Cinqair requires correct HCPCS J-code selection per drug and dose, a separate administration fee (96372), and valid prior authorization before each administration.
Spirometry and Pulmonary Function Test Billing Gaps
Spirometry allergy billing uses 94010 for spirometry with graphic record, 94060 for spirometry before and after bronchodilator, and 94070 for multiple spirometry tracings.
Patch Test and Food Allergy Testing Billing Miscoded
Patch testing uses 95044 per patch application, billed per individual patch placed and read. Food allergy testing billing uses the same percutaneous (95004) or intradermal (95024) code series as inhalant allergy testing, but food allergen panel composition varies across payers.
E/M Coding Missed on Immunotherapy Injection Visit Days
When an allergy practice performs a separately identifiable evaluation and management service on the same date as an immunotherapy injection, the E/M service is separately billable with modifier 25 appended to the E/M code.
Enterprise Immunology Medical Billing and Allergy Billing Services RCM
Allergy Billing Services Engineered Across Skin Testing, Immunotherapy, Biologics, and Diagnostics
Allergy and immunology billing is not one revenue problem. It is four distinct revenue streams each with different unit logic, different concurrent code requirements, and different prior authorization workflows. MBC manages all four simultaneously. Learn more about our revenue cycle management services.
Allergy Skin Test Unit Verification and Accurate Per-Test Billing
Every allergy skin testing encounter is reviewed against the documented test count before the claim is submitted. Units billed for 95004, 95024, 95027, and 95044 are verified against the physician's documented allergen panel, not defaulted to a standard count.
Immunotherapy Preparation and Administration Fee Concurrent Capture
Every immunotherapy encounter is billed with both the extract preparation fee and the injection administration fee as concurrent separately reimbursable codes. Preparation codes (95165 for multi-dose, 95145-95149 for single-dose) are billed alongside 95115 or 95117 per injection count on every encounter.
Biologics Prior Authorization Management and J-Code Accuracy
Systematic prior authorization workflows for Xolair, Dupixent, Fasenra, Nucala, Cinqair, and all other allergy biologics. Authorization requests document step therapy compliance per payer-specific biologic medical policies. Authorizations are tracked per patient with renewal reminders before expiration.
Spirometry and Pulmonary Function Test Billing Accuracy
Spirometry billing coded at the level the documented encounter supports: 94010 for standard spirometry, 94060 when pre- and post-bronchodilator testing is documented, 94070 for multiple spirometry tracings. Technical and professional component billing verified per practice billing structure.
Patch Test, Food Allergy, and Diagnostic Testing Billing Accuracy
Patch test billing (95044) verified against the documented number of patches placed and read per encounter. Food allergy testing billed per documented allergen units with allergy billing ICD coding reviewed for diagnosis specificity before submission.
Allergy and Immunology Denial Management and HIPAA-Compliant Appeals
Biologic prior authorization denials, medical necessity denials on allergy testing, and immunotherapy bundling denials are appealed with procedure-specific clinical documentation matched to each payer's allergy billing claim management policies.
Allergy Billing Services and Immunology Medical Billing Code Reference
Mastering Every CPT Code for Allergy and Immunology Billing Services
Allergy and immunology CPT codes span skin testing, immunotherapy, biologics, pulmonary function testing, and E/M services. Our specialists apply every unit count and concurrent code correctly across every encounter type.
Allergy Skin Test Billing: Percutaneous (95004, 95024), Intradermal (95027), Patch Test (95044), and Food Allergy Testing
| CPT Code | Description | Allergy Billing Note |
|---|---|---|
| 95004 | Percutaneous Allergy Skin Tests, Non-Allergenic Extracts, Per Test | Bill per documented test, not per panel. Verify unit count against the physician's documented allergen list before submission. |
| 95024 / 95027 | Intracutaneous Allergy Tests: Allergenic Extracts (95024) and Sequential Incremental Dilution (95027) | Bill per intradermal test documented. 95027 for sequential dilution testing. Do not bundle multiple tests into a single unit. |
| 95044 | Patch or Application Test, Per Test | Bill per individual patch applied and read. Document number of patches in the encounter note to support every billed unit. |
Allergen Immunotherapy Billing: Extract Preparation (95145-95165), Injection Administration (95115, 95117), and Concurrent E/M Billing
| CPT Code | Description | Allergy Billing Note |
|---|---|---|
| 95165 | Professional Services for Allergen Immunotherapy, Multi-Dose Vial Preparation | Bill per dose prepared, concurrently with the injection administration code. Do not omit preparation fee when billing injection administration only. |
| 95115 / 95117 | Allergen Immunotherapy Injection: Single Injection (95115) and Two or More Injections (95117) | 95115 for single injection per encounter, 95117 for two or more. Bill preparation code concurrently. Apply modifier 25 if a separately identifiable E/M is also performed. |
| 95145-95149 | Professional Services for Allergen Immunotherapy, Single-Dose Vials Per Antigen Type | Bill per single-dose vial prepared for the antigen type. Billed concurrently with 95115 or 95117 on the same encounter. |
Biologics Allergy Billing: Xolair (J2357), Dupixent (J0173), Fasenra (J0222), Nucala (J2182), and Administration Fee (96372)
| HCPCS / CPT | Description | Allergy Billing Note |
|---|---|---|
| J2357 / J0173 | Xolair (Omalizumab) Per 0.5mg (J2357) and Dupixent (Dupilumab) Per 200mg (J0173) | Prior authorization required before administration. Verify J-code against current HCPCS allergy billing codes at every dose change. Bill per documented dose and NDC. |
| J0222 / J2182 | Fasenra (Benralizumab) Per 10mg (J0222) and Nucala (Mepolizumab) Per 1mg (J2182) | Document qualifying eosinophilic asthma diagnosis and prior treatment failure for prior authorization. Bill J-code per documented dose with separate 96372 administration fee. |
| 96372 | Therapeutic, Prophylactic, or Diagnostic Injection, Subcutaneous or Intramuscular | Bill 96372 on every biologic administration encounter as the administration fee. Bill concurrently with the drug J-code. Never omit the administration fee. |
Spirometry Allergy Billing (94010, 94060), Allergy E/M Billing (99202-99215), and Modifier 25 on Injection Day Evaluations
| CPT Code | Description | Allergy Billing Note |
|---|---|---|
| 94010 / 94060 | Spirometry with Graphic Record (94010) and Pre- and Post-Bronchodilator Spirometry (94060) | Bill 94060 when pre- and post-bronchodilator testing is documented. Do not default to 94010 when the encounter supports the more complex code. |
| 99202-99205 / 99211-99215 | Outpatient E/M Visits, New (99202-99205) and Established (99211-99215) by MDM Complexity | Bill E/M with modifier 25 when a separately identifiable evaluation is performed on the same date as an allergy procedure. Document MDM level explicitly. |
| 95115 / 95117 + E/M | Injection Visit with Separately Identifiable E/M: Modifier 25 Required on E/M Code | Append modifier 25 to the E/M code on injection days where a separately identifiable evaluation is performed. Without modifier 25, payers bundle the E/M into the injection fee. |
Allergy and Immunology Revenue Architecture
Three Revenue Streams Every Allergy and Immunology Billing Service Must Manage
Allergy and immunology billing revenue flows through three distinct streams, each with different unit logic, different concurrent code requirements, and different payer authorization rules. MBC manages all three simultaneously under one workflow.
Allergy Testing and Diagnostic Billing Revenue
Allergy skin test billing (95004, 95024, 95027, 95044), spirometry allergy billing (94010, 94060), food allergy testing billing, and patch test billing represent the highest-frequency diagnostic revenue stream in allergy practice billing management.
Allergen Immunotherapy Billing and Injection Revenue
Allergen immunotherapy billing covers extract preparation fees (95165, 95145-95149), injection administration fees (95115, 95117), and separately billable E/M services on injection days with modifier 25.
Biologics Billing and High-Cost Drug Revenue
Biologic therapy billing for Xolair, Dupixent, Fasenra, Nucala, Cinqair, and emerging allergy biologics represents the highest per-encounter revenue category in immunology practice revenue cycle management.
Why Outsource Allergy and Immunology Billing to MBC
When You Outsource Allergy and Immunology Billing Services, You Need Allergy Billing Specialists, Not Generalists
Every allergy practice that chooses to outsource allergy billing services and immunology medical billing to MBC gets a team built for unit-based testing accuracy, concurrent immunotherapy fee capture, and biologic prior authorization management across every encounter type.
Dedicated Allergy and Immunology Billing Specialists
Your practice is managed by billers and coders who work exclusively with allergy and immunology billing services.
Allergy Practice Revenue Dashboards
Real-time visibility into NCR, AR aging by payer, skin test unit capture rate per provider, immunotherapy preparation fee capture rate, biologic prior authorization approval and denial rates, and denial rate by procedure category.
RCM Principal with Allergy Billing Expertise
Your first engagement is with a senior RCM Principal who understands allergy and immunology coding services, immunotherapy preparation and administration concurrent billing mechanics, biologic prior authorization workflows, and the unit-based revenue logic of allergy skin test billing.
HIPAA-Compliant EHR and Allergy System Integration
Secure integration with your allergy EHR, allergen ordering system, and immunotherapy management platform. No manual re-entry of skin test panel counts, no charge lag on immunotherapy encounters, no missed biologic administration fees.
Allergy Billing Revenue Identification and Recovery
MBC audits your existing encounter history to identify skin test unit undercounting patterns, immunotherapy preparation fees that were omitted, biologic administration fees that were not captured, and prior authorization failures that resulted in write-offs.
Quarterly Allergy and Immunology Performance Reviews
Strategic reviews covering skin test unit capture rate, immunotherapy preparation fee capture rate, biologic prior authorization approval and denial distribution, payer-specific allergy billing claim management patterns, and modifier 25 utilization on injection day E/M encounters.
Outsource Allergy and Immunology Billing to MBC
Ready to See What Your Allergy and Immunology Billing Services Team Is Actually Leaving Behind?
Schedule a 15-minute briefing with one of our Allergy and Immunology RCM Principals. No sales pitch. We will review your skin test unit capture rate, immunotherapy preparation fee omission rate, biologic prior authorization approval rate, and denial distribution by procedure type, and give your administrator a realistic annual recovery projection specific to your practice volume and payer mix. Explore our full medical billing services for allergy and immunology practices.