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Bile Duct X-ray Through Existing Drainage Tube

Maryland rates for HCPCS 47531

This procedure injects contrast dye through a drainage tube or catheter that is already in place in the bile duct system, then takes X-ray images to check how well bile is flowing and look for blockages. It is used to monitor or troubleshoot a biliary drainage tube that was placed during an earlier procedure.

Rates data updated October 2026.

How much does Bile Duct X-ray Through Existing Drainage Tube cost?

$110

Typical negotiated rate. In Maryland, October 2026.

Insurers have agreed to pay about $110 for this service. Most negotiated rates run $74.13 to $447.

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.

How much rates vary

Facilitymedian $105 · 10th to 90th $78 to $676Professionalmedian $110 · 10th to 90th $68 to $589
$100$200$500$1Kfacility $105professional $110

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

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$77.62
Median
$104.71
Typical High
$676.08
Aetna
Setting
Professional
Modifier
None
Typical Low
$75.86
Median
$371.54
Typical High
$537.03
CareFirst
Setting
Professional
Modifier
None
Typical Low
$67.61
Median
$74.13
Typical High
$75.86
Cigna
Setting
Professional
Modifier
None
Typical Low
$69.18
Median
$218.78
Typical High
$660.69
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$407.38
Median
$478.63
Typical High
$660.69
United
Setting
Professional
Modifier
None
Typical Low
$72.44
Median
$288.40
Typical High
$776.25
Wellpoint
Setting
Professional
Modifier
None
Typical Low
$64.57
Median
$64.57
Typical High
$676.08
5 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
$38.02
Median
$186.21
Typical High
$269.15
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$15.49
Median
$74.13
Typical High
$107.15
Aetna
Setting
Professional
Modifier
54 · Surgery only
Typical Low
$57.54
Median
$275.42
Typical High
$398.11
Aetna
Setting
Professional
Modifier
55 · Aftercare only
Typical Low
$11.48
Median
$56.23
Typical High
$79.43
Aetna
Setting
Professional
Modifier
56 · Pre-op care only
Typical Low
$7.59
Median
$37.15
Typical High
$53.70

Where Maryland sits

The same service costs 5.6 times more in Wisconsin than in Maryland. 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.

Maryland· 51st of 51

$110

WI $617MD $110

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.