Allergy & Asthma Medical Billing That Clears Denials, Not Just Files Claims
From skin prick panels to allergen immunotherapy vials, MedRevenue Bridge codes and bills every touchpoint of your allergy and asthma practice with AAPC-certified precision — so you get paid for the care you already deliver.
Where allergy & asthma practices lose money
Allergy and asthma practices sit at the intersection of some of the most heavily scrutinized CPT codes in outpatient medicine. Payers routinely flag allergy testing panels for excessive unit billing, and many carriers cap the number of allergens tested per date of service or require documentation proving medical necessity for each individual antigen. When practices bill testing units without granular, antigen-specific documentation, they invite line-item denials that eat directly into revenue — and front-desk or in-house billing teams frequently lack the specialty knowledge to appeal these correctly the first time.
Allergen immunotherapy billing is its own minefield. The distinction between antigen preparation billing and injection administration billing trips up even experienced coders, and payers differ wildly on how many doses per vial they'll reimburse, whether "up to 10 doses" language applies, and how multi-dose vial billing should be reported when a patient's serum is prepared in bulk but administered incrementally over months. Add pulmonary function testing (PFTs) and spirometry into the mix — codes that require interpretation documentation separate from the technical component — and it becomes clear why allergy and asthma claims see first-pass denial rates well above the specialty average.
Beyond coding accuracy, allergy practices lose revenue to vial waste tracking failures, missed prior authorizations for biologics used in severe asthma management, and E/M visits that get bundled or down-coded because modifier -25 wasn't appended correctly when a same-day procedure and office visit both occurred. Without a billing partner who understands the clinical workflow of an allergy clinic — not just the CPT list — practices routinely leave 8–15% of collectible revenue on the table.
Core billing & coding we handle
Every billable component of your allergy & asthma workflow, coded by AAPC-certified specialists.
Allergy Testing (Skin Prick, Intradermal, Percutaneous)
Percutaneous and intradermal allergy testing codes are billed per test, and payers expect documentation specifying exactly which allergens were tested and the clinical rationale for the panel size. We track payer-specific unit caps and pre-flag charts where documentation doesn't support the number of units billed, preventing denials before submission rather than appealing after the fact.
Patch Testing
Patch testing for contact dermatitis requires precise date-of-service sequencing since application and reading occur on separate visits days apart. We manage the two-part billing cycle so both the application and the interpretation/reading are captured and billed correctly, with modifiers applied when the reading visit includes additional E/M work.
Food Allergy Evaluations
Food challenge testing and specific IgE-related evaluation and management require thorough medical necessity documentation, particularly for payers that consider oral food challenges investigational. We build appeal-ready documentation packets in advance for high-scrutiny payers.
Evaluation & Management (E/M) Visits
When E/M services are performed alongside procedures like testing or immunotherapy on the same day, modifier -25 must clearly demonstrate the E/M was a significant, separately identifiable service. Our coders review chart notes line-by-line to confirm modifier -25 is defensible before the claim goes out, not after a denial arrives.
Allergen Immunotherapy — Vial Preparation & Injection Administration
This is the highest-risk revenue category in allergy billing. We separately and correctly bill antigen preparation (per dose) from single- or multiple-injection administration, track vial dosing against each payer's allowed unit maximums, and maintain a dose-reconciliation log so preparation billing always matches actual administered doses — closing the gap where most allergy practices lose immunotherapy revenue to underbilling or trigger audits from overbilling.
Spirometry & Pulmonary Function Testing (PFT)
Spirometry and pre/post bronchodilator testing codes require both a technical and professional (interpretation) component. We ensure interpretation notes are billed correctly whether performed in-house or split-billed, and confirm medical necessity diagnosis codes (asthma, COPD overlap, dyspnea) support the test ordered.
Nebulizer Treatments
Nebulizer treatment billing is frequently bundled or denied as incidental to an E/M visit. We apply correct modifiers and sequence diagnosis codes to demonstrate the treatment was medically necessary and distinct from routine evaluation.
Why MedRevenue Bridge
98%+ First-Pass Claim Acceptance
Allergy-specific pre-submission scrubbing catches unit-cap violations, missing modifiers, and antigen documentation gaps before claims ever leave our system.
24–48 Hour Claim Filing
Same-week charting turns into same-week claims, keeping your cash flow predictable instead of trapped in a submission backlog.
Dedicated AAPC-Certified Allergy & Asthma Coders
Your account is staffed by coders who understand vial dosing logic and immunotherapy billing cycles, not generalists learning on your claims.
Reduced Days in AR
Proactive denial prevention plus rapid appeals on the rare denial that slips through keeps your average days in AR well below the specialty benchmark.
Why allergy and asthma practices lose revenue
- Allergy test unit counting and payer caps
- Immunotherapy antigen preparation versus injection billing
- Biologic drug (J-code) buy-and-bill reimbursement
- Prior authorization for biologics and specialty drugs
How we fix it
- Percutaneous and intradermal test unit billing
- Allergen immunotherapy preparation and administration coding
- Biologic buy-and-bill and J-code reimbursement tracking
- Spirometry and pulmonary testing claims
- Payer policy monitoring and appeals
Allergy & Asthma billing questions
How do you bill allergen immunotherapy vials correctly to avoid denials?
We separate antigen preparation from administration, track dosing per vial against payer-specific unit maximums, and maintain a reconciliation log matching prepared doses to administered doses — the single most common source of immunotherapy denials and audit flags.
What documentation does spirometry billing require?
Spirometry claims need both the technical performance of the test and a documented interpretation tied to a supporting diagnosis such as asthma or dyspnea. We verify both components are present and correctly linked before submission.
Why do allergy testing claims get denied so often?
Most denials stem from billing more test units than payer policy allows or documentation that doesn't specify which antigens were tested. We pre-check unit counts against payer rules before claims go out.
Stop losing immunotherapy and testing revenue to preventable denials. Schedule a free discovery call with MedRevenue Bridge and see exactly where your allergy and asthma billing is bleeding revenue — and how fast we can fix it.
Schedule My Free Discovery CallWe bill for every major specialty
Our coders are trained per specialty, not spread thin across all of them.