Statutory & financial benchmarks
| Code / item | What it describes | Unit | Typical benchmark | Notes |
|---|---|---|---|---|
| CPT 99601 | Home infusion or specialty drug administration, per visit | Up to 2 hours | $110–$165 agency subcontract rate | The core commercial nursing visit; pharmacy or agency bills the payer |
| CPT 99602 | Each additional hour of the same visit | Per hour | $55–$85 per hour | Essential for 3–6 hour IVIG and other multi-hour infusions; document start and stop times |
| HCPCS G0068 | Medicare HIT professional services, category 1: IV anti-infective, pain management, chelation, pulmonary hypertension, inotropic and other IV drugs given through an external pump | Per infusion day (15-minute units on the claim) | Single per-day amount set annually by CMS | Billed by an enrolled qualified HIT supplier, not by the nurse personally |
| HCPCS G0069 | Category 2: subcutaneous immunotherapy and other subcutaneous infusions through a pump | Per infusion day | Per-day amount set annually | Common for subcutaneous immune globulin |
| HCPCS G0070 | Category 3: IV chemotherapy and other highly complex IV drugs through a pump | Per infusion day | Highest of the three categories | Requires chemotherapy competency and safe-handling controls |
| HCPCS G0088 / G0089 / G0090 | Initial home visit for categories 1, 2 and 3 | Per initial visit day | Paid above the subsequent-visit amount | CMS defines when a later visit counts as initial again; check the current HIT rules |
| Midline insertion or declot (flat) | Ultrasound-guided midline placement or alteplase occlusion clearance | Per procedure | $150–$250+ | Requires documented vascular access competency and an order |
| Mileage and cancellation | Travel beyond a set radius; patient no-show or same-day cancel | Per mile / per event | Often near the IRS standard mileage rate; flat cancel fee negotiated | Put both in the contract, or you will absorb them |
How specialty pharmacy nursing subcontracts work
In home infusion, the pharmacy is the hub. It holds the payer contract, receives the prescription, verifies benefits and prior authorization, compounds or dispenses the drug, and ships it with supplies and, when needed, an ambulatory pump. Commercial payers usually pay the pharmacy a per diem for drug-related services and supplies (the S9xxx family of HCPCS codes) plus nursing visits under CPT 99601 and 99602.
The nursing visit is where subcontracting happens. The pharmacy either employs field nurses, contracts a licensed nursing agency, or contracts individual RNs directly. You are paid a negotiated per-visit or per-hour rate by the pharmacy or agency; you do not bill the payer yourself. Your obligations are set by the pharmacy’s plan of care, its policies and its accreditation standards.
- Who contracts nurses: national and regional specialty pharmacies, home infusion pharmacies, ambulatory infusion suites with home programs, and manufacturer patient-support programs that hire nurse educators for first-dose teaching.
- What they buy: coverage density (can you reach rural patients within 24–48 hours), clinical depth (IVIG titration, port access, PICC care) and clean, fast documentation.
The Medicare Part B Home Infusion Therapy benefit
Section 5012 of the 21st Century Cures Act created a permanent Medicare Part B Home Infusion Therapy (HIT) benefit, in effect since January 1, 2021, after a temporary transitional payment period. It pays an enrolled, qualified HIT supplier for professional services (nursing, patient training and education, remote monitoring) on days when a skilled professional is physically present in the home and an infusion drug is administered.
The benefit is narrow. It covers only drugs administered through an external infusion pump that are covered under the Medicare DME benefit, and the patient must be under the care of a physician or allowed practitioner who establishes and reviews the plan of care. The patient does not need to be homebound. Many home IV antibiotics given by gravity or elastomeric devices fall outside the pump benefit, which is a long-standing gap the industry continues to raise.
| Category | Subsequent visit code | Initial visit code | Typical therapies |
|---|---|---|---|
| 1 | G0068 | G0088 | IV anti-infectives, pain management, chelation, inotropes, pulmonary hypertension drugs given by external pump |
| 2 | G0069 | G0089 | Subcutaneous immunotherapy and other subcutaneous pump infusions |
| 3 | G0070 | G0090 | IV chemotherapy and other highly complex IV drugs by external pump |
Separately, Medicare Part B has long covered IVIG drug for primary immune deficiency in the home, and since 2024 it also pays for the related in-home items and services for those patients. As a subcontractor you rarely touch Medicare billing directly, but knowing which benefit pays for a visit tells you what documentation the pharmacy will need from you.
Therapy mix, visit length and competency
Rates follow visit length and risk. A port de-access and dressing change is a short visit; a first IVIG dose with stepwise rate titration can keep you in the home for five hours or more. Price your availability accordingly.
| Therapy | Typical visit | Billing pattern | Competency the pharmacy will check |
|---|---|---|---|
| IVIG (immune globulin) | 3–6 hours, longer on first dose | 99601 + 99602 per added hour | Product-specific rate titration, vitals at each rate change, premedication, anaphylaxis response |
| Subcutaneous immune globulin | 1–2 hours, mostly teaching | 99601; HIT category 2 for Medicare pump patients | Pump programming, site selection, patient self-administration teaching |
| IV anti-infectives | Start-of-care teaching, weekly line care and labs | 99601 per visit | Elastomeric and pump devices, PICC or midline care, lab draws from the line |
| Parenteral nutrition | Start of care, weekly line care | 99601 per visit | CVAD care, glucose monitoring, cycling teaching |
| Inotropes, pulmonary hypertension drugs | Start of care and urgent troubleshooting | 99601; HIT category 1 for Medicare pump patients | Continuous pump therapy, no-interruption protocols, cardiology communication |
| Biologics and monoclonal antibodies | 1–4 hours | 99601 ± 99602 | Infusion reaction management; first-dose setting rules |
Credentialing: what pharmacies require before the first referral
Accredited pharmacies (commonly ACHC, URAC, The Joint Commission or CHAP) must show surveyors that every nurse who enters a patient’s home is licensed, competent and supervised. Expect a credentialing packet before you receive a single referral.
- Licensure in the patient’s state: an RN licence or a valid multistate privilege for every state you will visit. See the Nurse Licensure Compact guide.
- Certification: CRNI® is the most recognized infusion credential; VA-BC signals vascular access depth. Neither is legally required, but both win contracts and higher rates.
- Skills validation: port access with non-coring needles, PICC and midline dressing changes, ambulatory pump programming, peripheral starts, lab draws from central lines.
- Screening: background check, OIG exclusion list and SAM checks, TB screening and immunizations, BLS (ACLS often preferred for IVIG and biologics).
- Insurance and paperwork: professional liability (commonly $1M/$3M) with the pharmacy as certificate holder, a signed business associate agreement, W-9 and contract.
If you operate as an agency rather than an individual, check whether your state requires a home health, home care or nurse staffing licence for an entity that sends nurses into patients’ homes. Requirements vary widely by state; your state health department is the place to confirm. Vascular access expectations are covered in the PIV, midline and PICC standards guide.
Contract terms to negotiate
The visit rate gets the attention, but the surrounding terms decide whether a contract is profitable.
- Rate structure: flat per visit, or 99601 for the first two hours plus an hourly 99602 rate. Hourly add-ons protect you on long IVIG visits.
- Travel: mileage beyond a radius, or a drive-time rate for rural patients.
- Cancellations: a flat fee when the patient cancels on arrival or the drug has not been delivered.
- Documentation deadline: pharmacies commonly require visit notes within 24–48 hours; payment can be withheld until notes arrive.
- Payment terms: net 30 is common; avoid terms that pay only after the pharmacy is paid by the payer.
- Independent contractor status: control over schedule and methods matters. Misclassification tests differ by state, and some states apply a strict “ABC” test.
- Referral economics: never pay or accept anything of value for patient referrals. Where federal program patients are involved, the Anti-Kickback Statute applies, and the personal services safe harbor (42 CFR 1001.952(d)) expects fair market value set in advance and not tied to referral volume.
Model a subcontracting agency in the provider calculator using the home infusion business model, or tell us which states you cover through partner intake so we can route specialty pharmacy demand to you.
Visit economics for an independent infusion RN
A worked example shows why multi-hour visits and route density matter more than the headline rate. The figures below use mid-range subcontract rates; your contracts will differ.
| Visit | Codes | Example payout | Time incl. driving | Effective hourly |
|---|---|---|---|---|
| Port de-access and dressing change | 99601 | $125 | 1.5 hours | ≈ $83 |
| 4-hour IVIG maintenance dose | 99601 + 2 × 99602 | $135 + $140 = $275 | 5 hours | ≈ $55 |
| 6-hour first-dose IVIG | 99601 + 4 × 99602 | $135 + $280 = $415 | 7 hours | ≈ $59 |
| Ultrasound-guided midline insertion | Flat procedure fee | $200 | 1.5 hours | ≈ $133 |
As a 1099 contractor you pay self-employment tax (15.3% on net earnings up to the Social Security wage base), your own liability coverage, supplies you are asked to carry, and vehicle costs. Short procedural visits clustered on one route usually beat long single visits on an hourly basis, which is why nurses who can place midlines and declot catheters earn the strongest per-hour returns.
Step-by-step: becoming a specialty pharmacy infusion subcontractor
- Map your coverage areaDefine the counties and states you can reach within 24–48 hours and confirm licensure or multistate privilege for each.
- Decide individual or agencyContract as an individual RN, or form an agency and check state home care or staffing licence requirements first.
- Document your competenciesAssemble skills validations for port access, CVAD care, pumps, IVIG titration and peripheral starts, plus CRNI® or VA-BC if you hold them.
- Bind professional liabilityCarry limits pharmacies expect, commonly $1M/$3M, with infusion therapy in the home named as a covered service.
- Build a credentialing packetLicence verifications, certifications, BLS/ACLS, TB and immunizations, background check, exclusion screening and a W-9.
- Approach pharmacies and agenciesTarget specialty and home infusion pharmacies shipping into your area and offer coverage where they are short of nurses.
- Negotiate the full contractRate, 99602 hourly add-on, mileage, cancellation fee, documentation deadline, payment terms and a business associate agreement.
- Learn each pharmacy’s formsUse their visit note, titration flowsheet, adverse event reporting and supervisory visit process exactly as written.
- Verify each referral before the visitConfirm the order, drug delivery, premedications, anaphylaxis kit, first-dose policy and any REMS restrictions.
- Submit notes on time and audit yourselfRecord start and stop times, rates, vitals and patient response, and submit within the contract deadline.
Common regulatory audit traps
Unsupported 99602 hours
Billing additional hours without documented start and stop times, or for time the nurse was not with the patient, is a classic payer audit finding. Chart clock times for start, every rate change and stop, and let the pharmacy bill from your record.
Practicing in a state you are not licensed for
A referral across a state line on a single-state licence, or into a non-compact state on a multistate licence, is unlicensed practice regardless of who sent you. Check the patient’s address against your licences before accepting.
Home infusion where the label or REMS says otherwise
Some products restrict infusion to certified sites, and some pharmacies require first doses in a monitored setting. Accepting the visit anyway exposes you, the pharmacy and the prescriber. Confirm restrictions in writing before the first visit.
Referral payments and kickbacks
Paying a pharmacy, case manager or marketer per patient referred, or accepting payment for steering patients to a pharmacy, can violate the federal Anti-Kickback Statute and state patient-brokering laws. Keep compensation at fair market value for services actually performed.
Contractor misclassification
A pharmacy that sets your schedule, methods and equipment may be treating you as an employee in all but name, which creates tax and labor exposure for both sides. Document your independence or accept W-2 per-diem status.
Run your state’s compliance and margin model
Pick your state, licence, model and volume to see the required entity structure, medical director retainer, GFE and 503B supply costs, and net margin, then get matched with the network.
State rules that matter most here
Frequently asked questions
How much do home infusion nurses earn per visit?
Per-visit subcontract rates commonly run from about $85 to $250 or more. A typical structure pays $110 to $165 for the first two hours under CPT 99601 and $55 to $85 for each additional hour under 99602, with flat fees for procedures such as midline insertion.
Can I bill CPT 99601 myself as an independent RN?
Usually not. The pharmacy or a contracted agency holds the payer contracts and bills the visit; you are paid by them under your subcontract. Billing payers directly would require your own payer enrollment and contracts, which is a different business.
What do G0068, G0069 and G0070 mean?
They are the Medicare Part B Home Infusion Therapy professional services codes for three payment categories: category 1 IV drugs such as anti-infectives, inotropes and pain management by external pump, category 2 subcutaneous immunotherapy, and category 3 IV chemotherapy. G0088, G0089 and G0090 are the matching initial-visit codes.
Do I need CRNI® certification to get contracts?
It is not legally required, but it is the most recognized infusion credential and many pharmacies prefer or pay more for it. Eligibility requires substantial recent infusion practice hours as an RN plus passing the INCC exam.
Do I need a home health license to subcontract?
An individual RN contracting directly usually works under the pharmacy’s or agency’s structure, but an entity that employs nurses and sends them into homes may need a state home health, home care or staffing licence. Requirements vary widely by state, so confirm with your state health department before forming an agency.
Who is responsible if a patient has a reaction during a home infusion?
You are responsible for following the plan of care, the anaphylaxis protocol and the pharmacy’s policies, and for activating emergency services when needed. The prescriber owns the orders and the pharmacy owns the dispensing and plan of care. Your own professional liability coverage protects you for your nursing acts.
Sources & standards reviewed
- Home Infusion Therapy Services (Medicare Part B HIT benefit and payment categories) Centers for Medicare & Medicaid Services
- 21st Century Cures Act, Section 5012 (home infusion therapy benefit) U.S. Congress
- CPT® codes 99601 and 99602, Home Infusion Procedures/Services American Medical Association
- Infusion Therapy Standards of Practice, 9th edition (2024) Infusion Nurses Society
- CRNI® certification eligibility and examination Infusion Nurses Certification Corporation
- List of Excluded Individuals/Entities (LEIE) HHS Office of Inspector General
- Anti-Kickback Statute safe harbors, 42 CFR 1001.952 HHS Office of Inspector General
Reviewed under the IVConnection clinical and regulatory review policy. Report a correction to clinical@ivconnection.com.