A7018 Medicaid reimbursement rate by state (2026)
Water, distilled, used with large volume nebulizer, 1000 ml. Medicaid pays a median of $0.375 for A7018 across 38 states, from $0.28 in Ohio to $8.93 in New Hampshire.
- States publishing
- 38
- National median
- $0.375units vary by state
- Lowest
- $0.28Ohio
- Highest
- $8.93New Hampshire
What does Medicaid pay for A7018?
38 state Medicaid programs publish a fee-for-service rate for A7018. The national median is $0.375 (units differ between states). New Hampshire pays the most, $8.93, and Ohio the least, $0.28 per Liter, a 31.9x spread.
A7018 rate by state: highest, middle and lowest
One like-for-like fee-for-service rate per state, ranked. The workspace lists all 38 states with every variant, modifier and effective date.
How to read this table
- Order. States are listed from the highest published rate to the lowest. No single unit is shared by 8 or more states for A7018, so the order is by published amount and is not a like-for-like rank.
- Medicaid rate. The most the state's fee-for-service program pays for one unit, as published. 15 of the 38 states list more than one rate for A7018, by modifier, provider type or setting; the table shows the one that matches the provider level and setting used across states, without add-ons.
- Unit. Of the 38 states, 2 publish A7018 per unit and 1 per liter, and 35 schedules print no unit at all (a flat amount per service).
- Per hour. A7018 is not billed in time units in these states, so no hourly figure is shown.
- Managed-care plans. The rule the state sets for its plans on this rate. What each rule means is explained below.
- % of Medicare. No Medicare physician fee schedule amount is on file for A7018, so there is no percentage.
- Source and date. Each Source link opens the state's own document; “since” is the date the rate took effect.
Why A7018 rates differ between states
Published rates for A7018 run from $0.28 in Ohio to $8.93 in New Hampshire. The two publish it in different units (no unit printed versus Liter), so part of that gap is the unit rather than the price. Half the states pay more than the median of $0.375 and half pay less. The usual reasons for a spread like this in equipment & supplies rates:
- Many states set equipment and supply fees as a percentage of the Medicare DMEPOS fee schedule, at different percentages and from different years.
- A single code can carry separate purchase, rental and used-equipment amounts, and states publish different subsets of them.
- Some items are priced individually from the manufacturer's price or the supplier's invoice, so fewer states publish a fixed fee.
Timing matters too. 20 states set the current rate for A7018 in 2026 or later, while 10 states still pay a rate that took effect in 2022 or earlier. A state that has not updated its rate in years will drift down the ranking as others raise theirs.
What managed-care plans pay for A7018
Most Medicaid members are in managed-care plans, and plans don't publish their provider fee schedules. For A7018, the public signal is the rule each state sets for its plans, recorded on each rate above.
In 8 states, the published rate binds plans: a floor, a pass-through or a state-set rate. In 15 states, plans negotiate and the published rate is a benchmark or out-of-network default. The rule for the remaining 15 states is not classified yet.
- Plans negotiate; the published rate applies out of network (15 states). In-network rates can be above or below the published rate. The published rate is the benchmark both sides know, and the fallback if no contract is signed.
- Plans must pay at least the published rate (6 states). The published rate is your floor. Negotiate up from it, and if a plan pays less, the contract provision is the basis for a payment dispute.
- The state sets the plan rate (2 states). There is little to negotiate on price. Contracting is about network participation, authorization and billing terms.
Plan-negotiated rates are never estimated here. To see the rule and its citation for a particular state, open that state's managed-care page, for example New Hampshire managed care.
Units and billing for A7018
A7018 is a HCPCS Level II transportation and supply code in the equipment & supplies line, billed mostly by durable medical equipment suppliers, orthotists, prosthetists and pharmacies. A codes cover ambulance and transportation services and medical and surgical supplies. Transport codes are paid per trip or per mile; supply codes per item or per box as the code states.
Units follow the code: per item, per pair, per box or per month of rental, so a per-unit comparison only holds when the states use the same unit. Pricing modifiers decide which amount applies: NU for a new purchase, RR for a monthly rental and UE for used equipment.
Before billing, confirm the rate, unit and any modifier with the state's current schedule or the plan: the amounts here are as published, not a guarantee of payment.
Frequently asked questions
What does Medicaid pay for A7018?
It depends on the state. Of the 38 states with a published fee-for-service rate, the median is $0.375. New Hampshire pays the most ($8.93) and Ohio the least ($0.28 per Liter).
Which state pays the highest Medicaid rate for A7018?
New Hampshire, at $8.93, effective 2021-01-01.
Which state pays the lowest Medicaid rate for A7018?
Ohio, at $0.28 per Liter, effective 2001-01-01. It publishes the code in a different unit from New Hampshire, so compare per unit with care.
What unit is A7018 billed in?
Of the 38 states, 2 publish A7018 per unit and 1 per liter, and 35 schedules print no unit at all (a flat amount per service).
Do managed-care plans pay the same rate for A7018?
Not necessarily. In 8 states, the published rate binds plans: a floor, a pass-through or a state-set rate. In 15 states, plans negotiate and the published rate is a benchmark or out-of-network default. The rule for the remaining 15 states is not classified yet. Each rule is cited to the plan contract, statute or notice in the workspace.