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Muscle-Relaxing Injections Into One Limb, Extensive

Washington, DC rates for HCPCS 64644

This service delivers injections of a muscle-relaxing medication into multiple muscles of a single arm or leg, used to ease stiffness or spasticity caused by conditions that overactivate certain muscles. It covers treatment of a larger number of muscles in that limb than the more limited version of this same treatment.

Rates data updated October 2026.

How much does Muscle-Relaxing Injections Into One Limb, Extensive cost?

$174

Typical physician fee. In Washington, DC, October 2026.

Insurers have agreed to pay about $174 for this service. Most negotiated rates run $120 to $316.

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 5 insurance carriers under federal price transparency rules.

How much rates vary

Facilitymedian $1,413 · 10th to 90th $186 to $5,129Professionalmedian $170 · 10th to 90th $110 to $457
$100$200$500$1K$2K$5Kfacility $1,413professional $170

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
$186.21
Median
$1,548.82
Typical High
$3,311.31
Aetna
Setting
Professional
Modifier
None
Typical Low
$117.49
Median
$186.21
Typical High
$457.09
CareFirst
Setting
Professional
Modifier
None
Typical Low
$109.65
Median
$123.03
Typical High
$1,380.38
Cigna
Setting
Professional
Modifier
None
Typical Low
$102.33
Median
$169.82
Typical High
$489.78
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$204.17
Median
$269.15
Typical High
$426.58
United
Setting
Facility
Modifier
None
Typical Low
$398.11
Median
$1,071.52
Typical High
$5,128.61
United
Setting
Professional
Modifier
None
Typical Low
$109.65
Median
$199.53
Typical High
$457.09
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
$58.88
Median
$81.28
Typical High
$93.33
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$23.44
Median
$33.11
Typical High
$37.15
Aetna
Setting
Professional
Modifier
54 · Surgery only
Typical Low
$89.13
Median
$123.03
Typical High
$138.04
Aetna
Setting
Professional
Modifier
55 · Aftercare only
Typical Low
$17.78
Median
$24.55
Typical High
$27.54
Aetna
Setting
Professional
Modifier
56 · Pre-op care only
Typical Low
$11.75
Median
$16.60
Typical High
$18.62

Where Washington, DC sits

The same service costs 3.3 times more in Alaska than in Virginia. 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.

Washington, DC· 38th of 51

$174

AK $468VA $141

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.