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Knee Extension Assist, Above-Knee or Hip Disarticulation

Maryland rates for HCPCS L5850

Addition, endoskeletal system, above knee (AK) or hip disarticulation, knee extension assist

Rates data updated October 2026.

How much does Knee Extension Assist, Above-Knee or Hip Disarticulation cost?

$85.11

Typical negotiated rate. In Maryland, October 2026.

Insurers have agreed to pay about $85.11 for this service. Most negotiated rates run $75.86 to $100.

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 7 insurance carriers under federal price transparency rules.

How much rates vary

Facilitymedian $100 · 10th to 90th $60 to $100Professionalmedian $85 · 10th to 90th $72 to $117
$100$200facility $100professional $85

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
Professional
Modifier
None
Typical Low
$74.13
Median
$83.18
Typical High
$85.11
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$37.15
Median
$41.69
Typical High
$42.66
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$14.79
Median
$16.98
Typical High
$16.98
Aetna
Setting
Professional
Modifier
55 · Aftercare only
Typical Low
$11.22
Median
$12.59
Typical High
$12.88
Aetna
Setting
Professional
Modifier
56 · Pre-op care only
Typical Low
$7.41
Median
$8.32
Typical High
$8.51
CareFirst
Setting
Professional
Modifier
None
Typical Low
$85.11
Median
$85.11
Typical High
$112.20
Cigna
Setting
Facility
Modifier
None
Typical Low
$100.00
Median
$100.00
Typical High
$100.00
Cigna
Setting
Professional
Modifier
None
Typical Low
$72.44
Median
$72.44
Typical High
$100.00
Johns Hopkins Employer Health Plan
Setting
Professional
Modifier
None
Typical Low
$162.18
Median
$162.18
Typical High
$162.18
Kaiser Permanente
Setting
Professional
Modifier
None
Typical Low
$114.82
Median
$162.18
Typical High
$245.47
United
Setting
Facility
Modifier
None
Typical Low
$60.26
Median
$60.26
Typical High
$75.86
United
Setting
Professional
Modifier
None
Typical Low
$74.13
Median
$83.18
Typical High
$125.89
Wellpoint
Setting
Professional
Modifier
None
Typical Low
$93.33
Median
$93.33
Typical High
$138.04

Where Maryland sits

The same service costs 2.9 times more in Montana than in Florida. 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· 43rd of 51

$85.11

MT $209FL $72.44

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.