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Billing code P2029 · Lab & pathology

P2029 Medicaid reimbursement rate by state (2026)

Congo red, blood. Medicaid pays a median of $4.46 for P2029 across 11 states, from $3.25 in Kansas to $4.95 in Kentucky.

Data as of Oct 5, 202611 statesEvery rate links to its official source

States publishing
11
National median
$4.46units vary by state
Lowest
$3.25Kansas
Highest
$4.95Kentucky
Answer

What does Medicaid pay for P2029?

11 state Medicaid programs publish a fee-for-service rate for P2029. The national median is $4.46 (units differ between states). Kentucky pays the most, $4.95, and Kansas the least, $3.25, a 1.5x spread.

State ranking

P2029 rate by state: highest, middle and lowest

One like-for-like fee-for-service rate per state, ranked. The workspace lists all 11 states with every variant, modifier and effective date.

#StateMedicaid rateUnitPer hourManaged-care plans% of Medicare
1Kentucky Source · since 2020-01-01$4.95——Plans negotiate; applies out of network—
2New Mexico Source · since 2023-07-01$4.95——Plans must pay at least this—
3Hawaii Source · since 2026-06-01$4.95——Plans negotiate; applies out of network—
5Arizona Source · since 2026-10-01$4.46——Plans negotiate; applies out of network—
6Missouri Source · since 2026-07-01$4.46——Plans negotiate; applies out of network—
10Oregon Source · since 2024-10-01$3.96——Plans negotiate; applies out of network—
11Kansas Source · since 1987-07-01$3.25——Not classified—
See all 11 states for P2029 — start free

4 more states, with every modifier and provider-type variant, rate history and the plan rule in each state. 14-day free trial, no credit card.

  • Source for every rate
  • Full rate history
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Rates are per the unit shown for each state; units can differ between states. Medicare amounts are computed from the CMS relative value file and locality cost indices; states with several Medicare localities show a range. Confirm rates with the payer before billing.

Track P2029 in your states. Get an alert when any state changes it, with every variant and the managed-care rule.
Guide

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 P2029, 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. 2 of the 11 states list more than one rate for P2029, 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. None of the 11 schedules prints a separate unit for P2029, so each amount is a flat payment for one service as the code defines it.
  • Per hour. P2029 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 P2029, 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.
Context

Why P2029 rates differ between states

Published rates for P2029 run from $3.25 in Kansas to $4.95 in Kentucky, a 1.5x gap in the same unit. Half the states pay more than the median of $4.46 and half pay less. The usual reasons for a spread like this in lab & pathology rates:

  • Pathology services with an interpretation have professional and technical components that states price separately.
  • Some states bundle certain tests into panels or into facility payments, so the separately billable amount differs.
  • Fees for newer molecular and genetic tests are often set case by case, so fewer states publish them and the published amounts spread widely.

Timing matters too. 3 states set the current rate for P2029 in 2026 or later, while 2 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.

Managed care

What managed-care plans pay for P2029

No managed-care plan publishes what it pays for P2029. What is public is the rule each state's plan contracts set, and that rule decides how much the published rate matters when you contract with a plan.

In 2 states, the published rate binds plans: a floor, a pass-through or a state-set rate. In 7 states, plans negotiate and the published rate is a benchmark or out-of-network default. The rule for the remaining 2 states is not classified yet.

  • Plans negotiate; the published rate applies out of network (7 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 (2 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.

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 Kentucky managed care.

Billing

Units and billing for P2029

P2029 is a HCPCS Level II pathology and laboratory code in the lab & pathology line, billed mostly by independent laboratories, hospital labs and pathology groups. P codes cover a small set of pathology and laboratory services, paid per test.

Laboratory tests are billed per test, and a panel is paid as a single code rather than as the sum of its component tests. Pathology interpretation can be billed with modifier 26 when the laboratory and the pathologist bill separately.

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.

FAQ

Frequently asked questions

What does Medicaid pay for P2029?

It depends on the state. Of the 11 states with a published fee-for-service rate, the median is $4.46. Kentucky pays the most ($4.95) and Kansas the least ($3.25).

Which state pays the highest Medicaid rate for P2029?

Kentucky, at $4.95, effective 2020-01-01.

Which state pays the lowest Medicaid rate for P2029?

Kansas, at $3.25, effective 1987-07-01.

What unit is P2029 billed in?

None of the 11 schedules prints a separate unit for P2029, so each amount is a flat payment for one service as the code defines it.

Do managed-care plans pay the same rate for P2029?

Not necessarily. In 2 states, the published rate binds plans: a floor, a pass-through or a state-set rate. In 7 states, plans negotiate and the published rate is a benchmark or out-of-network default. The rule for the remaining 2 states is not classified yet. Each rule is cited to the plan contract, statute or notice in the workspace.