Serum caps, build-up vs. maintenance dosing, modifier -25 on same-day E&M visits, payer-specific immunotherapy limits, these are the billing details that sink allergy practice revenue. But we know every one of them. Stream RCM has a specialized billing team who understand the unique complexities of billing and coding in allergy and immunology billing. We focus exclusively on the details that drive accurate reimbursement.














Most billing companies simply added allergy and immunology to a dropdown list, with no understanding of what makes immunology billing uniquely difficult. The result is serum preparation units miscounted, maintenance dosing billed at build-up rates, and E&M visits bundled with injections because modifier -25 wasn’t applied. We understand the clinical nuances of this specialty. Our billers know the difference between a build-up phase claim and a maintenance phase claim. They know United Healthcare now defines a dose as 1cc, directly impacting how CPT 95165 is billed for multidose vials, and that BCBS is tightening annual immunotherapy dosing limits. Deep specialty knowledge sets us apart.
We specialize in allergy testing, immunotherapy and biologic infusions. We handle all immunology subspecialties with precision to reduce denials and accelerate payments.
Percutaneous and subcutaneous injection billing often triggers payer edits. We apply correct modifier sequencing and maintain proper documentation to ensure clean first-pass claims for injection series across single and multiple antigens

Biologics like dupilumab and omalizumab require prior authorizations and step therapy documentation. Our team manages the full authorization cycle and ensures J-code accuracy to prevent costly claim delays from payers.

Scratch, intradermal, and patch testing each carry distinct CPT code requirements. We apply payer-specific limits and correctly bill professional and technical components to increase legitimate reimbursement.

Oral food challenges require precise E&M coding alongside diagnostic procedures. We ensure food challenge billing aligns with payer policies and time-based documentation standards to protect revenue.

IVIG infusion billing demands careful unit tracking and medical necessity support. Our coders cross-reference diagnosis codes with infusion durations to prevent underbilling and support payer appeals when denials occur.

Every service below is delivered by immunology billing specialists who understand how allergy practices earn and where revenue disappears.
We investigate every denied allergy claim, identify root causes, and submit well-documented appeals within payer-required timelines to recover revenue that would otherwise be lost.
Our AR team works aging buckets meticulously, prioritizes high revenue allergy claims, and pursues balances through follow-up cycles that keep your cash flow consistent and predictable.
We perform in-depth audits of allergy practice billing, exposing undercoding, missed modifiers, and documentation gaps that cost providers thousands in uncaptured reimbursement annually.
Our certified coders translate allergy and immunology clinical documentation into precise CPT, ICD-10, and HCPCS codes with the accuracy needed to withstand payer audits and RAC reviews.
We manage the credentialing and re-credentialing process for allergists across insurance panels, ensuring your providers are enrolled before claims are submitted to avoid preventable rejections.
Accurate payment posting is the foundation of clean AR management. We reconcile EOBs, post ERA files, and identify contractual variances to prevent revenue loss from payer underpayments. 0
Our Allergy and Immunology billing expertise turns complex payer rules into predictable revenue. Empower your practice with claims that get approved every time.

Many allergy practices operate with front-office staff handling billing alongside scheduling, referrals, and patient communications. That split attention is one of the leading causes of revenue loss in smaller allergy practices. When billing is treated as a secondary task, claim submission delays accumulate, documentation errors go unreviewed, and denials pile up without follow-up. Outsourcing immunology billing to Stream RCM removes that burden entirely. Our dedicated team submits claims the same day, reviews every denial within 24 hours, and handles your entire AR cycle with the focused attention it demands. Practices that transition to us consistently report a meaningful reduction in billing overhead costs alongside measurable improvements in net collections typically within the first 90 days of engagement.
| CPT Code | Procedure | Common ICD-10 | Stream RCM Protocol |
|---|---|---|---|
| 95165 | Allergen Immunotherapy | J30.1, J30.2, J30.9 | Verify antigen count against the mixing log before billing. Payers deny extra units, so we reconcile each dose to prevent recoupment and audit issues. |
| 95004 | Percutaneous Skin Testing | J30.1, L50.0, T78.40XA | Ensure the number of billed scratches matches the clinical grid. Our team cross-checks every unit with documentation to avoid automatic down-coding. |
| 96365 | Intravenous Infusion (Initial) | D83.9, D84.9, J45.51 | Confirm start and stop times are clearly documented in nursing notes. We hold claims without time records and verifies additional hour units. |
| 86003 | Allergen-Specific IgE Testing | J30.1, J45.20, L20.9 | Review each payer's limit on reimbursable allergens per visit. Our coders apply proper modifiers and diagnoses to support medical necessity for all units. |
| 99213 | Established Patient E/M Level 3 | J30.9, J45.30, L50.9 | Audit medical decision-making for moderate complexity. We proactively down-codes to Level 2 if documentation is insufficient, keeping the practice compliant. |
One dimension of allergy and immunology billing that rarely gets discussed yet directly affects reimbursement accuracy is age. Pediatric allergy visits carry different procedures compared to adult encounters. A child presenting with allergic rhinitis and food sensitization requires age-appropriate history elements and diagnosis specificity mapping differently to ICD-10 codes than an adult with the same presentation. Pediatric practices often deal with Medicaid as a primary payer, a system with its own prior authorization workflows, fee schedules, and immunotherapy coverage criteria diverging from commercial policies. Our allergy billers are trained to handle both populations without conflating their rules, ensuring every encounter is coded to the precise standard.

Our allergy and immunology billing services integrate seamlessly with your EHR, practice management systems, and patient portals ensuring uninterrupted workflow and accurate claims submission.


The regulatory environment for telehealth allergy billing in 2025 is more nuanced than at peak expansion. Medicare has stabilized certain telehealth flexibilities through Congressional extensions while tightening documentation requirements around audio-only visits, geographic patient location, and originating site rules determining whether a virtual allergy consultation is reimbursable. Commercial payers add another layer, as each insurer applies its own telehealth parity policies, modifier requirements, and place-of-service code standards differing from Medicare’s framework. We keep your virtual allergy visits billable, compliant, and fully reimbursed by maintaining current knowledge of exactly which services each payer covers via telehealth, and how documentation must survive an audit.
Challenges in allergy and immunology billing are unavoidable because they cause substantial financial losses. We implement rigorous coding audits, payer-specific compliance checks, and documentation reviews to eliminate common errors.
Insurance payers have varying protocols for allergy testing and treatments, with Medicare, Medicaid, and private insurers each enforcing distinct rules.
Our team carefully studies each payer contract and tailors claims accordingly, ensuring full compliance with specific guidelines for allergy tests and immunotherapies.
CMS prohibits billing an allergy test on the same day as an allergy immunotherapy service.
We actively review claims for same-day test and therapy combinations and amend them before submission to prevent automatic denials.
Food sensitivity testing requires documented monitoring of blood pressure, pulse, and respiration, but providers often miss this detail.
We verify that complete vital sign records are present and attach proper documentation with every claim to support medical necessity.
Payers frequently impose quantity limits or “ceilings” on the number of allergy tests billable per date of service.
Our billing team tracks each payer’s test limits and adjusts claim units accordingly to avoid rejections and ensure maximum allowable reimbursement
Incorrect or missing modifiers fail to explain who performed the test, how, and where, leading to payment delays.
Our AAPC-certified coders apply the appropriate modifiers to every claim, providing full clarity to payers for accurate and timely reimbursements.
Our patient-friendly collections use simple statements, proactive communication, and structured escalation to recover revenue.

We confirm coverage, deductibles, and patient balances before appointments so patients clearly understand costs upfront.
Our billers send easy-to-read bills so patients understand charges, reducing confusion, disputes, and billing calls.
We consistently follow up on unpaid balances using reminders and statements so nothing is left uncollected.
Our team recover payments in a professional and respectful way that protects patient relationships and keeps loyalty strong.
Payer-specific test limits, modifier rules, and documentation requirements for immunotherapy create constant compliance hurdles.
95165 (immunotherapy), 95004 (skin testing), 86003 (IgE testing), and 99213-99215 (E/M visits) are the most frequently used.
Absolutely. Our team aggressively pursues appeals and reworks denied claims to recover the revenue you owed.
Yes. With precise coding, payer-specific compliance, and denial management, we consistently improve approval rates and revenue capture.

We guide your claims to approval, from test limits to modifier rules. Experience billing that empowers, not exhausts.