Denial or audit trigger
Antigen over-units / clinical-judgment dosing
Root cause
Doses billed above the mixing log or by estimate
How we stop it
Dose count reconciled to the log before submission
Allergy & Immunology billing · Denver, CO
247 Medical Billing Services delivers allergy and immunology billing services in Denver built around how a Front Range allergy practice actually earns — unit-counted testing, antigen dose math, and biologics that carry more revenue than a week of office visits. Denver allergists work a payer mix that swings hard between commercial carriers tied to the metro's large employers, Medicare for the region's growing retiree population, and Health First Colorado, the state's Medicaid program administered through Regional Accountable Entities under the Accountable Care Collaborative. Get any one of those routing rules wrong on a mixing log or a single-dose vial and the money never lands. We bill for that reality, not a generic template.
Denver County and the wider metro — from Cherry Creek and the Anschutz-anchored corridor in Aurora out to Lakewood, Littleton, and the northern suburbs — carry one of the most mixed-altitude allergy populations in the country. High-plains grass and weed pollen, cottonwood, and cedar drive heavy skin-testing and immunotherapy volume, and the metro's severe-asthma and chronic-urticaria caseload keeps biologic buy-and-bill programs busy year-round. Practices here range from solo immunologists in the suburbs to hospital-affiliated academic clinics near the medical campuses. That spread means a single Denver allergy and immunology billing services provider has to move cleanly between Novitas Solutions — the Medicare Part B contractor for Colorado (Jurisdiction H) — and the RAE-routed Health First Colorado claims, because the two pay allergy work on very different rules.
The commercial side of the Denver book is unusually strong: the metro's employer base pushes a high share of privately insured patients through allergy clinics, which means verification of benefits and biologic prior authorization drive collections as much as clean coding does. At the same time, the region's retiree growth keeps Medicare volume climbing, and a meaningful slice of pediatric allergy and food-allergy work runs through Health First Colorado. A billing operation that only knows one of those payer worlds will leak revenue in the other two. We staff the account so that a commercial biologic auth, a Medicare antigen line, and a Medicaid skin-test claim are all handled by people who know the specific rule that applies.
The revenue in this specialty is decided by unit counting and buy-and-bill, not the office visit. Skin and intradermal testing is reported per individual test — the units follow the number of tests performed, inside each payer's annual cap — never collapsed into one panel line. Antigen preparation follows the dose rule: billed from the mixing log, one cubic centimeter per dose, ten billable doses per multidose vial for Medicare, and that single antigen-prep unit is the most-audited line in the entire specialty. Venom immunotherapy is coded by venom count, not by visit. Miss any of these counts and you either underbill honest revenue or overbill into a recoupment — and in Denver's audit-active environment, the second mistake is the expensive one.
Every clean allergy claim in Denver moves through the same checkpoints — eligibility, correct unit math, the prep-versus-administration split, and modifier discipline. The prep-versus-administration split trips up more practices than any other rule: the antigen-preparation service and the injection-administration service are separate lines, the antigen line is billed only when your practice actually mixed the vial, and administration is reported once for two-or-more injections rather than multiplied by the number of shots. Get those two lines confused and you either lose the prep revenue you earned or invite a recoupment on administration you never should have multiplied. The table shows how the core services translate into a paid claim.
| Service performed | How it is billed in Denver | What drives the payment |
|---|---|---|
| Percutaneous skin testing | Per individual test, units = number of tests, within payer cap | Under-unit reporting loses real revenue; over-units trigger review |
| Intradermal testing | Per test, separate from percutaneous, inside annual MUE cap | Documented test count in the chart |
| Antigen preparation | From the mixing log, 1 cc = 1 dose, 10 doses per multidose vial (Medicare) | The most-audited line — dose math must match the log |
| Injection administration | Administration coded once for two-or-more injections, never multiplied | Prep and administration are separate services |
| Biologic (severe asthma / urticaria) | Buy-and-bill, exact HCPCS unit math, discarded-drug modifier on single-dose vials | Prior authorization confirmed before administration |
| Same-day office visit | Separate E/M only when distinct and documented | Modifier 25 on a true separate service, never a routine shot |
Most allergy denials are self-inflicted and predictable. Because the antigen-prep line is the specialty's highest audit target, we lead denial prevention there, then work down the list.
Antigen over-units / clinical-judgment dosing
Doses billed above the mixing log or by estimate
Dose count reconciled to the log before submission
Skin panel billed as one unit
Testing collapsed into a single line
Per-test units restored inside each payer cap
Administration multiplied
Injection admin billed per shot
Billed once for two-or-more injections
Antigen billed without preparation
Antigen line submitted when the practice did not mix the vial
Antigen billed only when prep is documented
Modifier 25 misuse
Modifier appended to a routine injection visit
Applied only to a distinct, documented same-day E/M
Biologic denied
Missing discarded-drug modifier or no prior auth
Auth confirmed and JW/JZ set before the drug is given
Non-covered panel billed to payer
Large IgG food-sensitivity panel sent to insurance
Screened to ABN and patient-pay up front
Revenue review
A certified allergy billing specialist reviews your coding, unit counts, authorizations and aged A/R against the payers you actually bill in Denver, CO — and puts a number on what your current process is leaving on the table.
A allergy specialist will reach out within one business day.
A allergy specialist will reach out within one business day.
Denver practices outsource allergy and immunology billing when in-house staff can keep up with office-visit claims but not with dose math, buy-and-bill routing, and biologic prior authorization all at once. The failure point is rarely the routine shot; it is the six-figure biologic that goes in before authorization is confirmed, or the antigen line that gets estimated instead of counted. As a medical billing services company built for this specialty, we run verification of benefits and prior authorization before a biologic is administered, route each drug through the correct medical-versus-pharmacy benefit, and reconcile every antigen line to the mixing log. Outsourcing allergy and immunology billing services in Denver to a billing company that already knows Novitas and Health First Colorado rules turns denials from a monthly surprise into a managed number.
What that looks like operationally: eligibility and benefit checks before the visit, prior-auth tracking on every biologic with a documented approval on file, real-time claim scrubbing against payer-specific unit caps, and denial work that recovers rather than writes off. Our compliant performance standards are the ones we hold across every specialty — a 99% first-pass clean-claim rate, roughly 99% net collection, days in A/R kept under 25, up to 40% fewer denials, up to 90% denial recovery, and 24-hour claim submission. Our professional team holds AAPC- and AHIMA-credentialed coders, works under HIPAA and SOC 2 Type II controls, maintains a 98% client retention rate, and reports to you through a free 360-degree dashboard with a dedicated account manager. Serving providers since 2005 — more than twenty years — we are an HBMA member billing services company that treats your antigen and biologic lines as the revenue centers they are.
We support the full range of allergy and immunology practices in the metro: solo and group allergists and immunologists, pediatric and adult allergy clinics, high-volume skin-testing and shot clinics, immunotherapy programs billing incident-to, severe-asthma and biologic infusion programs, and food-allergy and oral immunotherapy practices. Whether you are a suburban shot clinic in Littleton or a biologic-heavy immunology group near the Aurora medical corridor, medical billing for allergy and immunology in Denver has to fit your service mix — a food-allergy and OIT practice needs different scrutiny than a testing-first clinic, and we build the workflow to match. A shot-clinic-heavy practice needs airtight administration and antigen-unit discipline; a biologic infusion program needs authorization tracking and discarded-drug accuracy above everything else. We scope the account to whichever of those carries your dollars, then reconcile the rest so nothing routine slips through uncoded.
Front Range allergists keep more of what they earn when antigen dose math, per-test units, and biologic authorizations are handled by people who bill this specialty daily. Our medical billing for allergy and immunology in Denver moves cleanly between Novitas JH Medicare, the commercial carriers tied to the metro's large employers, and Health First Colorado routed through its Regional Accountable Entities under the Accountable Care Collaborative — three payer worlds that pay allergy work on different rules. From a suburban shot clinic in Littleton or Lakewood to a biologic-heavy immunology group near the Anschutz corridor in Aurora, we reconcile every antigen line to the mixing log and confirm each biologic's benefit before it is drawn, so the high-plains pollen season turns testing and immunotherapy volume into posted revenue.
Denver practices are billed out of the same Colorado desk. Statewide payer detail lives on the Colorado page.
Allergy & Immunology billing in Colorado — the payer programs, authorities and rules behind every Denver claim.
Allergy & Immunology Billing Services provider — the codes, unit rules and denials nationally, without the local layer.
Yes. We bill Colorado Medicaid through its Regional Accountable Entity routing under the Accountable Care Collaborative, alongside Novitas Medicare and commercial carriers, and we confirm which benefit a biologic runs under before it is given.
Every antigen line is reconciled to the mixing log before submission — one cc per dose, ten doses per multidose vial for Medicare — so the units are defensible in an audit and nothing honest is left unbilled.
Yes. We confirm prior authorization first, set the discarded-drug modifier on single-dose vials, verify exact HCPCS unit math, and route each drug through the correct medical or pharmacy benefit.
We bill the lines that actually carry allergy revenue — per-test units, the antigen dose rule, the prep-versus-administration split, and biologics — instead of treating the specialty like an office-visit practice. A general biller sees a shot and codes a shot; we see whether the vial was prepared, how many tests were run, and whether the biologic was authorized.
Yes. Large IgG food-sensitivity panels and similar non-covered testing are screened before the claim goes out, routed to an advance beneficiary notice and patient-pay where appropriate, and kept off the payer claim so the covered work is not held up or flagged.
Most practices move within a standard onboarding window while continuing to submit clean claims. We map your payer mix, biologic drug list, and antigen workflow first, then run parallel checks so nothing drops during the switch.
From solo practices to multi-provider groups, we bill Allergy & Immunology for Denver practices with a dedicated account manager, certified coders and a live dashboard — so the units, authorizations and appeals that decide your month stop being the thing nobody has time for.
Prefer email? sales@247medicalbillingservices.com