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Creating An Opening Between Upper Heart Chambers

Maryland rates for HCPCS 33737

Surgery that creates or enlarges an opening in the wall between the heart's two upper collecting chambers so that oxygen-rich and oxygen-poor blood can mix. It is done in babies born with certain heart defects, where that mixing is what keeps enough oxygen reaching the body until a fuller repair can be carried out.

Rates data updated July 2026.

How much rates vary

Facilitymedian $661 · 10th to 90th $661 to $661Professionalmedian $2,630 · 10th to 90th $2,188 to $2,884
$1K$2Kfacility $661professional $2,630

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. Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$2,187.76
Median
$2,630.27
Typical High
$2,884.03
United
Setting
Facility
Modifier
Global
Typical Low
$660.69
Median
$660.69
Typical High
$660.69