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Superficial Soft Tissue Biopsy Of The Back Or Flank

Massachusetts rates for HCPCS 21920

This procedure removes a small sample of soft tissue from the back or flank, close to the skin surface, so it can be examined for signs of disease such as infection, inflammation, or tumor cells. The surgeon numbs the area, makes a small incision, and takes the sample without going deep into the underlying muscle. Results guide the diagnosis and next steps for treatment.

Rates data updated October 2026.

How much does Superficial Soft Tissue Biopsy Of The Back Or Flank cost?

$363

Typical negotiated rate. In Massachusetts, October 2026.

Insurers have agreed to pay about $363 for this service. The price depends on where it is billed: about $363 from a physician practice, and about $372 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$363$245 to $603
FacilityA hospital or hospital-owned outpatient department$372$200 to $1,047

How much rates vary

Facilitymedian $372 · 10th to 90th $158 to $2,884Professionalmedian $363 · 10th to 90th $174 to $912
$200$500$1K$2K$5Kfacility $372professional $363

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
$537.03
Median
$2,187.76
Typical High
$3,630.78
Aetna
Setting
Professional
Modifier
None
Typical Low
$147.91
Median
$245.47
Typical High
$446.68
AllWays Health Partners
Setting
Facility
Modifier
None
Typical Low
$323.59
Median
$851.14
Typical High
$2,884.03
AllWays Health Partners
Setting
Professional
Modifier
None
Typical Low
$173.78
Median
$389.05
Typical High
$1,949.84
BCBS Massachusetts
Setting
Facility
Modifier
None
Typical Low
$162.18
Median
$194.98
Typical High
$371.54
Cigna
Setting
Facility
Modifier
None
Typical Low
$199.53
Median
$346.74
Typical High
$489.78
Cigna
Setting
Professional
Modifier
None
Typical Low
$204.17
Median
$346.74
Typical High
$630.96
Fallon Health
Setting
Facility
Modifier
None
Typical Low
$158.49
Median
$208.93
Typical High
$3,311.31
Fallon Health
Setting
Professional
Modifier
None
Typical Low
$346.74
Median
$398.11
Typical High
$467.74
Harvard Pilgrim
Setting
Facility
Modifier
None
Typical Low
$363.08
Median
$794.33
Typical High
$4,168.69
Harvard Pilgrim
Setting
Professional
Modifier
None
Typical Low
$177.83
Median
$371.54
Typical High
$741.31
Mass General Brigham
Setting
Facility
Modifier
None
Typical Low
$323.59
Median
$851.14
Typical High
$2,884.03
Mass General Brigham
Setting
Professional
Modifier
None
Typical Low
$173.78
Median
$389.05
Typical High
$1,949.84
United
Setting
Facility
Modifier
None
Typical Low
$407.38
Median
$870.96
Typical High
$5,370.32
United
Setting
Professional
Modifier
None
Typical Low
$177.83
Median
$346.74
Typical High
$758.58
Well Sense
Setting
Facility
Modifier
None
Typical Low
$131.83
Median
$199.53
Typical High
$302.00
Well Sense
Setting
Professional
Modifier
None
Typical Low
$117.49
Median
$158.49
Typical High
$223.87
7 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
$74.13
Median
$123.03
Typical High
$223.87
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$30.20
Median
$48.98
Typical High
$89.13
Aetna
Setting
Professional
Modifier
54 · Surgery only
Typical Low
$112.20
Median
$186.21
Typical High
$338.84
Aetna
Setting
Professional
Modifier
55 · Aftercare only
Typical Low
$22.39
Median
$37.15
Typical High
$67.61
Aetna
Setting
Professional
Modifier
56 · Pre-op care only
Typical Low
$14.79
Median
$24.55
Typical High
$44.67
Aetna
Setting
Professional
Modifier
78 · Unplanned return to OR
Typical Low
$104.71
Median
$173.78
Typical High
$316.23
Well Sense
Setting
Professional
Modifier
78 · Unplanned return to OR
Typical Low
$74.13
Median
$112.20
Typical High
$162.18

Where Massachusetts sits

The same service costs 4.4 times more in Alaska 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.

Massachusetts· 8th of 51

$363

AK $661KY $151

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.