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Allergy and Immunology Billing Services
Allergy billing is testing panels, the extract, and the injection administration — three different claim stories — plus biologics when the practice runs them. Vector Medical Billing, in Jamaica, New York, counts skin-test units, caps 95165 doses the way Medicare defines them, and keeps shot-day E/M honest inside the EHR you already use.
98%Published NCR
24hClaim Submission
BAASigned with every client
AAPCCertified coders
AHIMACertified coders
E&OErrors and omissions insured
50 StatesRemote billing nationwide
Monthly fee
What allergy and immunology billing services include
Full-cycle RCM for allergy clinics — skin testing, vial prep, shot administration, and asthma/immunology biologics on one account.
The operating cycle matches medical billing services: eligibility and biologic auth, charge capture from test sheets and immunotherapy logs, ICD-10 / CPT / HCPCS coding, scrub, clearinghouse submission, payment posting, denial management, and A/R follow-up. The scrub watches per-antigen test units, Medicare control exclusions, 95165 dose caps, injection vs prep separation, same-day testing/IT bans, and JW/JZ on biologic vials.
In scope: office E/M, percutaneous and intradermal testing, patch/photopatch when performed, multidose and single-dose antigen preparation, immunotherapy injections, venom immunotherapy families, oral challenges when billed, and buy-and-bill biologics (e.g. omalizumab, dupilumab pathways as covered). Dedicated pulmonology billing covers PFT-heavy asthma labs when that is a separate pulmonary account. Serology send-outs billed by an outside lab stay on the lab’s claim.
The fee is a percentage of net collections. The written rate is on pricing. Credentialing, a retrospective coding audit, MIPS, and out-of-network / IDR stay separate engagements.
What sits on this allergy fee
- Testing, extract, and injection kept on the lines they belong on
- Unit caps, component billing, and biologic auth watched before claims age
- HIPAA workflows, a signed BAA, and PHI limited to staff on the account
Where allergy claims fail
Common allergy billing issues include incorrect dose counts on antigen vials, test units that do not match the antigen sheet, and an office visit billed on a shot day when the note only documents the injection.
Wrong 95165 dose math
Billing by vial count instead of 1 cc doses, or claiming more than 10 doses from one multidose vial under Medicare. Dilutions billed as if they created unlimited extra doses beyond the 10-dose PE cap.
95165 is preparation only — injections still need 95115 or 95117.
Test units and controls
Units that do not match the antigen sheet. Medicare does not allow positive/negative controls inside 95004/95024 family counts. Payer daily unit caps exceeded without clinical justification.
Testing and immunotherapy on the same day is a standard practice ban — and a denial pattern.
Shot-day E/M without substance
Routine injection visits billed with 99213-25 when the note only documents the shot. Or complete-service IT codes (95120–95134) submitted to Medicare, which does not cover that bundled form.
Component billing: prep + injection — not a single complete-service CPT for Medicare.
Test · extract · injection
Testing panels, the extract, and the injection
Testing, the injection series, and the office visit are three separate services.
Testing — percutaneous (95004 and related), intradermal, patch, and photopatch bill one unit per antigen/test performed. Match units to the documented sheet. Interpretation and counseling belong in an E/M when a visit is separately performed — not as free floating add-ons to every prick.
Extract — multidose non-venom preparation uses 95165 by 1 cc dose units (Medicare max 10 per vial). Single-dose vials prepared for another clinician use 95144. Venom preparation uses 95145–95170 by venom count. Prep does not include the shot.
Injection — 95115 one injection, 95117 two or more, one of those codes per date of service — not both. Do not bill injection codes when the patient self-administers. Pair prep + injection on the same DOS when both occur using component billing.
Separation checklist
- Test units = antigens documented (no Medicare controls)
- 95165 units = 1 cc doses prepared, capped per vial rules
- 95115 or 95117 for administration — not complete-service codes for Medicare
Allergy testing — per antigen units
Fee schedule amounts are for a single test; quantity drives payment.
Percutaneous / intradermal
95004 (and penicillin/venom-specific percutaneous families when used) and intradermal codes bill one unit per test. Individualize antigen panels to history and exposure. LCD utilization norms may flag extreme unit counts for review.
Controls (Medicare)
CMS NCCI policy does not allow positive or negative controls inside the reported test count for 95004 and related codes. Commercial payers may differ — confirm before including histamine/saline as billable antigens.
Not with IT same day
Allergy testing is not performed the same day as immunotherapy in standard practice and should not be reported together. Testing is also integral to rapid desensitization (95180) and not separately billed with it.
Immunotherapy preparation and shots
Component billing for Medicare — prep and administration as separate lines.
95165 prep
Multidose non-venom antigen preparation. Units = 1 cc doses prepared; Medicare max 10 per vial. Two medically necessary multidose vials can support combined units (e.g. 20). Does not include the injection.
95115 / 95117
Professional administration only. One code per DOS: single injection (95115) or two or more (95117). Bill with prep codes when the allergist both prepares and injects. Do not pair 95144 with injection codes.
Venom & complete codes
Venom prep uses 95145–95170 by number of venoms. Complete-service codes 95120–95134 are not covered by Medicare — use component billing instead. “Catch-up” venom coding follows MAC guidance when behind on a multi-venom schedule.
Allergy biologics and same-day visits
High-dollar drugs need auth and waste rules; shot days need real E/M if billed.
Omalizumab and similar
Buy-and-bill biologics (e.g. J2357 for omalizumab) need prior auth, correct units, NDC, and JW/JZ waste reporting when single-dose vials leave discarded drug. Document administered amount, date/time, and discarded quantity. Administration codes follow injection vs infusion hierarchy for the product.
See also biologic patterns on rheumatology billing and pulmonology billing when those suites are separate accounts.
E/M with testing or shots
Modifier 25 on E/M only when a significant, separately identifiable evaluation is documented beyond test reading or routine injection. Counseling and prescribing treatment after testing often support a visit — test interpretation alone does not replace that visit documentation.
Injection-only maintenance visits usually do not support a separate E/M.
Allergy code families this service works
Illustrative anchors — the test sheet, vial log, and payer policy decide the final claim.
| Work type | Example | What to check | Common failure if skipped |
|---|---|---|---|
| Office E/M | 99202–99215 ± 25 | Separate from shot/test-only work | Habit-25 on injection day |
| Percutaneous tests | 95004 × units | One unit per antigen; no Medicare controls | Unit mismatch / controls billed |
| Intradermal / patch | 95024 / 95044 / 95052 | Units; photopatch vs patch rules | Both patch + photopatch same antigen |
| Antigen prep | 95165 | 1 cc doses; max 10/vial (Medicare) | Vial-count billing |
| Injection admin | 95115 / 95117 | One code per DOS | Both codes same day |
| Venom prep | 95145–95170 | Venom count; catch-up rules | Wrong venom code level |
| Complete-service IT | 95120–95134 | Not for Medicare | Denied complete codes |
| Biologics | J2357 etc. ± JW/JZ | Auth; units; waste | Waste recoupment |
This page does not invent an allergy denial percentage. The free audit reads your test units, 95165 math, and shot-day E/M on the sample you send.
What a free audit line looks like
Illustrative composite only — not a client result and not a promised recovery.
| Field | Example entry |
|---|---|
| Documented service | Maintenance immunotherapy; one injection from multidose vial; no separate E/M; new 10 cc vial prepared earlier same week billed as 20 units of 95165 |
| Billed codes | 95165 × 20 for one vial; 95115; 99213-25 |
| Issue found | Medicare max 10 doses per multidose vial exceeded; E/M not supported by injection-only note |
| Recommended correction | 95165 × 10 for that vial (unless two vials prepared); keep 95115; drop unsupported 25 |
| Related check | Confirm commercial payer dose definition if not Medicare |
| Why it matters | Overpayment risk on prep plus E/M denial — caught in scrub or flagged in the free audit |
Request a Free Audit with recent notes, claims, and denials. We map testing, extract, and injections on your file — not this composite.
How Vector runs allergy billing
Units and component lines first — then the same revenue cycle.
1
Assign allergy
Coder and biller who already work 95004 units, 95165 caps, and biologic JW/JZ.
2
Reconcile and code
Charge entry and coding from test sheets and vial logs — queries when dose math is unclear.
4
Post and report
835 posting, denial work, A/R aging, monthly RCM report by test vs prep vs shot vs biologic.
Not inside the allergy percentage
Related work stays separate so the quote matches the job.
Credentialing
Provider credentialing for allergists and NPPs across payer panels is a separate project.
Coding audit
A retrospective billing and coding audit of 95165 and skin-test units is scoped on its own when you want a period review.
Underpay / OON
Underpayment recovery and OON / IDR stay separate when the dispute path is not ordinary denial work.
How allergy billing is priced
Percentage of dollars that land — not a flat fee per shot that ignores prep and test units.
Written rate
The fee is a percentage of net collections. No setup fee on the monthly cycle. Month to month. The written rate follows visit, testing, and immunotherapy volume and how much of the cycle you hand over.
See pricing or request a written rate after the free audit.
What we need to start
EHR access, monthly visit / test / shot census, biologic volume if any, open A/R if you are leaving another biller, and a sample of recent 95165 or skin-test denials. Switching usually overlaps so claim submission does not stop. See EHR integration if access setup needs a separate quote.
Audit the allergy claims that mix test, extract, and shot into one line
Send monthly testing and immunotherapy volume, EHR name, and a sample of 95165 or skin-test denials. We reply with what the open A/R shows, whether the monthly fee fits, and a written rate — without inventing a clean-claim percentage.
Written
Monthly rate
98%
Published NCR
50
US States
BAA
Every Client
Allergy billing questions
Straight answers tied to the sections above.
What does allergy and immunology billing include?
Clinic E/M, skin testing by unit, extract preparation, injection administration, venom IT when in scope, biologics with auth, scrubbing, submission, posting, denials, and A/R.
How much do allergy billing services cost?
The fee is a percentage of net collections. No setup fee on the monthly cycle. The written rate follows visit, testing, and immunotherapy volume and payer mix.
Are testing, extract, and injections billed separately?
Yes. Testing by antigen unit, 95165 (or venom prep) for extract, and 95115/95117 for shots. Medicare uses component billing — not complete-service IT codes.
How is 95165 billed for Medicare?
Units equal 1 cc doses prepared from a multidose vial, maximum 10 per vial. Preparation does not include administration.
Can testing and immunotherapy be billed the same day?
Not in standard practice — they should not be reported together. Same-day E/M needs modifier 25 only when separately identifiable.
Do we have to change our EHR?
No. Billers work in the system you already use — see EHR integration. Compatibility is confirmed before you commit.
Where does Vector provide allergy billing?
The office is 15717 85th St, Jamaica, NY 11414-2620. Work is remote for allergy practices in all 50 states. See the specialties hub.
Is Vector Medical Billing HIPAA certified?
HHS does not certify billing companies. Vector signs a BAA, limits PHI to staff on the account, and follows HIPAA workflows. A HIPAA security risk analysis is a separate engagement when scoped.