Apicoectomy — Premolar (First Root) (D3421) — National Rates

Negotiated reimbursement rates for D3421 across 47 states, sourced from CMS Transparency in Coverage data. 682 rate records.

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National Average Negotiated Rate
$634
682 rate records · 47 states
📊 Data updated monthly · Last refresh: March 2026

About D3421 — Apicoectomy — Premolar (First Root)

The CDT code D3421 refers to an apicoectomy procedure performed on a premolar, specifically addressing the first root. This surgical intervention is indicated when there is persistent infection or inflammation at the root tip that cannot be resolved through conventional root canal therapy. Proper documentation should include pre-operative radiographs, a detailed treatment plan, and post-operative follow-up notes. Reimbursement for this procedure can vary significantly depending on the payor and state, with average reimbursements around $634. Some insurance plans may have specific criteria for coverage, requiring prior authorization or documentation of failed root canal therapy before approving payment.

Reimbursement rates for D3421 vary significantly by state, payor, and provider network. The national average negotiated rate is $634. Data sourced from CMS Transparency in Coverage machine-readable files, updated monthly.

Top Paying States for D3421

New York
$817
24 records
New Hampshire
$812
8 records
Washington
$793
5 records

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Full National Breakdown

Median
$634
Low
$90
High
$2,995

Highest & Lowest Reimbursement States

↑ Top 5

StateAvg Rate
New York$817
New Hampshire$812
Washington$793
Nevada$752
New Jersey$743

↓ Bottom 5

StateAvg Rate
Vermont$392
Kansas$390
Arkansas$386
Alabama$384
Nebraska$361

All States — D3421 Average Rates

New York
$817
New Hampshire
$812
Washington
$793
Nevada
$752
New Jersey
$743
Alaska
$740
North Carolina
$739
Maine
$737
Connecticut
$726
Massachusetts
$720
Colorado
$717
California
$711
Idaho
$697
Ohio
$685
Virginia
$675
South Dakota
$671
Wisconsin
$666
Oregon
$659
Florida
$650
Arizona
$644
Puerto Rico
$634
Maryland
$630
New Mexico
$614
South Carolina
$606
Utah
$597
Missouri
$596
Pennsylvania
$596
Mississippi
$594
Michigan
$572
Texas
$570
Rhode Island
$567
Georgia
$567
Hawaii
$552
Indiana
$546
Louisiana
$534
Illinois
$528
Kentucky
$514
Oklahoma
$486
Minnesota
$463
Tennessee
$454
North Dakota
$444
Iowa
$436
Vermont
$392
Kansas
$390
Arkansas
$386
Alabama
$384
Nebraska
$361
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State-by-State Comparison Table

StateAverageMedianMinMaxRecords
New York$817$629$263$2,99524
New Hampshire$812$962$414$9628
Washington$793$793$759$8325
Nevada$752$738$515$94814
New Jersey$743$768$366$1,19016
Alaska$740$780$624$8163
North Carolina$739$636$545$1,12228
Maine$737$716$682$89310
Connecticut$726$729$560$8728
Massachusetts$720$716$407$9628
Colorado$717$813$549$81315
California$711$696$271$1,07391
Idaho$697$639$639$8133
Ohio$685$776$512$88416
Virginia$675$665$457$1,22242
South Dakota$671$671$671$6711
Wisconsin$666$674$519$8066
Oregon$659$659$652$6662
Florida$650$603$263$1,00743
Arizona$644$666$459$81322
Puerto Rico$634$634$634$6341
Maryland$630$665$456$87225
New Mexico$614$644$271$8055
South Carolina$606$610$347$1,00024
Utah$597$639$478$6733
Missouri$596$533$342$84225
Pennsylvania$596$574$393$80517
Mississippi$594$594$594$5941
Michigan$572$564$459$7485
Texas$570$566$263$95142
Rhode Island$567$567$567$5671
Georgia$567$501$415$98127
Hawaii$552$550$434$6764
Indiana$546$498$400$78312
Louisiana$534$552$426$6064
Illinois$528$507$459$72714
Kentucky$514$554$271$6409
Oklahoma$486$486$410$5612
Minnesota$463$459$271$1,19037
Tennessee$454$326$326$8259
North Dakota$444$407$366$6606
Iowa$436$342$263$7033
Vermont$392$392$392$3921
Kansas$390$342$271$6608
Arkansas$386$386$347$4252
Alabama$384$390$357$4387
Nebraska$361$349$284$4425
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