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Iodine I-131 Sodium Iodide, Diagnostic, per mcCi

California rates for HCPCS A9531

Iodine I-131 sodium iodide, diagnostic, per mcCi (up to 100 mcCi)

Rates data updated October 2026.

How much does Iodine I-131 Sodium Iodide, Diagnostic, per mcCi cost?

$4.90

Typical negotiated rate. In California, October 2026.

Insurers have agreed to pay about $4.90 for this service. The price depends on where it is billed: about $4.90 from a physician practice, and about $7.24 from a hospital or other facility.

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$4.90$3.72 to $28.18
FacilityA hospital or hospital-owned outpatient department$7.24$4.90 to $8.91

How much rates vary

Facilitymedian $7 · 10th to 90th $4 to $13Professionalmedian $5 · 10th to 90th $3 to $38
$5$10$20facility $7professional $5

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
Facility
Modifier
None
Typical Low
$4.90
Median
$4.90
Typical High
$24.55
Aetna
Setting
Professional
Modifier
None
Typical Low
$4.17
Median
$4.90
Typical High
$4.90
Anthem BCBS
Setting
Professional
Modifier
None
Typical Low
$3.63
Median
$4.47
Typical High
$6.31
Blue Shield
Setting
Professional
Modifier
None
Typical Low
$3.02
Median
$4.37
Typical High
$10.00
Cigna
Setting
Facility
Modifier
None
Typical Low
$3.72
Median
$7.41
Typical High
$11.22
Cigna
Setting
Professional
Modifier
None
Typical Low
$3.72
Median
$3.72
Typical High
$3.72
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$7.08
Median
$12.88
Typical High
$19.05
Lucent Health
Setting
Professional
Modifier
None
Typical Low
$28.18
Median
$38.02
Typical High
$38.02
Molina
Setting
Professional
Modifier
None
Typical Low
$10.23
Median
$10.23
Typical High
$10.23
Providence
Setting
Facility
Modifier
None
Typical Low
$3.72
Median
$6.92
Typical High
$12.02
Providence
Setting
Professional
Modifier
None
Typical Low
$3.72
Median
$3.72
Typical High
$3.72
United
Setting
Facility
Modifier
None
Typical Low
$15.85
Median
$15.85
Typical High
$15.85
United
Setting
Professional
Modifier
None
Typical Low
$2.82
Median
$3.98
Typical High
$18.20
4 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
$2.09
Median
$2.45
Typical High
$2.45
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$0.83
Median
$0.98
Typical High
$0.98
Aetna
Setting
Professional
Modifier
55 · Aftercare only
Typical Low
$0.63
Median
$0.72
Typical High
$0.72
Aetna
Setting
Professional
Modifier
56 · Pre-op care only
Typical Low
$0.42
Median
$0.49
Typical High
$0.49

Where California sits

The same service costs 4.6 times more in Ohio than in Hawaii. 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.

California· 12th of 51

$4.90

OH $11.48HI $2.51

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.