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Trastuzumab-dttb (Ontruzant) Injection

Idaho rates for HCPCS Q5112

Injection, trastuzumab-dttb, biosimilar, (Ontruzant), 10 mg

Rates data updated October 2026.

How much does Ontruzant (trastuzumab) cost?

$26.30per 10 mg

Typical negotiated rate. In Idaho, October 2026.

Insurers have agreed to pay about $26.30 for each 10 mg of this drug. The price depends on where it is billed: about $25.12 from a physician practice, and about $33.88 from a hospital or other facility.

Work out the cost of a dose

This drug is priced per 10 mg. Enter the amount given to see what insurers have agreed to pay for it.

mg
In a doctor's office or clinic
$25.12
At a hospital outpatient department
$33.88

The same drug, in the same amount, costs 35% 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 We do not publish dosing guidance: use the amount from your own prescription or treatment plan.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 9 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$25.12$22.91 to $29.51
FacilityA hospital or hospital-owned outpatient department$33.88$26.30 to $48.98

How much rates vary

Facilitymedian $34 · 10th to 90th $23 to $83Professionalmedian $25 · 10th to 90th $21 to $37
$20$50$100facility $34professional $25

Distribution of negotiated rates across all payers (price axis is log-scale). Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Professional
Modifier
None
Typical Low
$21.38
Median
$26.30
Typical High
$26.30
BCBS Idaho
Setting
Facility
Modifier
None
Typical Low
$24.55
Median
$38.02
Typical High
$83.18
BCBS Idaho
Setting
Professional
Modifier
None
Typical Low
$22.91
Median
$23.44
Typical High
$33.88
Cigna
Setting
Facility
Modifier
None
Typical Low
$29.51
Median
$29.51
Typical High
$53.70
Cigna
Setting
Professional
Modifier
None
Typical Low
$20.89
Median
$20.89
Typical High
$20.89
Moda Health
Setting
Facility
Modifier
None
Typical Low
$20.89
Median
$26.30
Typical High
$37.15
Moda Health
Setting
Professional
Modifier
None
Typical Low
$20.89
Median
$31.62
Typical High
$37.15
Molina
Setting
Professional
Modifier
None
Typical Low
$19.50
Median
$22.91
Typical High
$22.91
MountainHealth Co-op
Setting
Facility
Modifier
None
Typical Low
$22.91
Median
$33.88
Typical High
$44.67
MountainHealth Co-op
Setting
Professional
Modifier
None
Typical Low
$26.30
Median
$33.88
Typical High
$35.48
Regence BlueShield
Setting
Facility
Modifier
None
Typical Low
$33.88
Median
$48.98
Typical High
$141.25
Regence BlueShield
Setting
Professional
Modifier
None
Typical Low
$22.91
Median
$25.12
Typical High
$25.12
Select Health
Setting
Facility
Modifier
None
Typical Low
$20.89
Median
$20.89
Typical High
$43.65
Select Health
Setting
Professional
Modifier
None
Typical Low
$20.89
Median
$20.89
Typical High
$21.88
United
Setting
Professional
Modifier
None
Typical Low
$29.51
Median
$29.51
Typical High
$31.62
9 more rates with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$10.72
Median
$13.18
Typical High
$13.18
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$4.27
Median
$5.25
Typical High
$5.25
Aetna
Setting
Professional
Modifier
55 · Aftercare only
Typical Low
$3.16
Median
$3.98
Typical High
$3.98
Aetna
Setting
Professional
Modifier
56 · Pre-op care only
Typical Low
$2.14
Median
$2.63
Typical High
$2.63
BCBS Idaho
Setting
Professional
Modifier
78 · Unplanned return to OR
Typical Low
$15.49
Median
$16.22
Typical High
$60.26
Moda Health
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$16.22
Median
$18.62
Typical High
$18.62
Moda Health
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$6.46
Median
$7.41
Typical High
$7.41
Moda Health
Setting
Professional
Modifier
55 · Aftercare only
Typical Low
$4.90
Median
$5.62
Typical High
$5.62
Moda Health
Setting
Professional
Modifier
56 · Pre-op care only
Typical Low
$3.24
Median
$3.72
Typical High
$3.72

Where Idaho sits

The same service costs 3.8 times more in Wyoming than in Kentucky. 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.

Idaho· 20th of 51

$26.30

WY $79.43KY $20.89

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.