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Fam-Trastuzumab Deruxtecan-nxki Injection

Montana rates for HCPCS J9358 · Enhertu

Injection, fam-trastuzumab deruxtecan-nxki, 1 mg

Rates data updated July 2026.

How much does Enhertu (fam-trastuzumab deruxtecan-nxki) cost?

$31.62per mg

Typical negotiated rate. In Montana, July 2026.

Insurers have agreed to pay about $31.62 for each mg of this drug. The price depends on where it is billed: about $31.62 from a physician practice, and about $32.36 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

Work out the cost of a dose

This drug is priced per mg. Enter the amount given to see what insurers have agreed to pay for it.

mg
In a doctor's office or clinic
$31.62
At a hospital outpatient department
$32.36

The same drug, in the same amount, costs 2% more at a hospital than at a doctor's office.

Drug cost only. Giving the drug, the visit itself and any monitoring are billed on their own codes. We do not publish dosing guidance: use the amount from your own prescription or treatment plan.

These are rates insurers have negotiated with providers, not the amount a patient is billed. What you owe depends on your plan's deductible and coinsurance. Based on rates published by 6 insurance carriers under federal price transparency rules.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$31.62$30.90 to $34.67
FacilityA hospital or hospital-owned outpatient department$32.36$28.84 to $38.90

How much rates vary

Facilitymedian $32 · 10th to 90th $29 to $66Professionalmedian $32 · 10th to 90th $30 to $39
$100$1K$10K$100Kfacility $32professional $32

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Professional
Modifier
Global
Typical Low
$30.90
Median
$31.62
Typical High
$38.02
BCBS
Setting
Facility
Modifier
Global
Typical Low
$30.20
Median
$61.66
Typical High
$89,125.09
Cigna
Setting
Facility
Modifier
Global
Typical Low
$35.48
Median
$35.48
Typical High
$35.48
Cigna
Setting
Professional
Modifier
Global
Typical Low
$30.90
Median
$30.90
Typical High
$35.48
MountainHealth Co-op
Setting
Facility
Modifier
Global
Typical Low
$27.54
Median
$28.84
Typical High
$53.70
MountainHealth Co-op
Setting
Professional
Modifier
Global
Typical Low
$27.54
Median
$28.84
Typical High
$53.70
Providence
Setting
Facility
Modifier
Global
Typical Low
$31.62
Median
$35.48
Typical High
$57.54
Providence
Setting
Professional
Modifier
Global
Typical Low
$30.90
Median
$36.31
Typical High
$79.43
United
Setting
Professional
Modifier
Global
Typical Low
$28.84
Median
$31.62
Typical High
$34.67

Where Montana sits

Rates are fairly even across states for this service. Every bar is a state, most expensive first. Touch or drag across it to read any state, then open that state for its carriers and full range.

Montana· 22nd of 51

$31.62

IA $33.88NY $28.84

Median negotiated rate in each state, from every insurer that publishes one. States where no insurer publishes a rate for this service are not shown.