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L5811 — Addition, endoskeletal knee-shin system, single axis, manual lock, ultra-light material

HCPCS Level II L-code · short descriptor: “Endo knee-shin mnl lck ultra”

Code system
HCPCS Level II
Family
L — Orthotics & prosthetics
Medicare coverage status
Carrier judgment — coverage decided by the DME MAC
DMEPOS payment category
Prosthetics & orthotics
Prior authorization
Not on Medicare required-PA list
Status
Active (April 2026 HCPCS)

Prior authorization

Not on the Medicare required-PA list as of the January 13, 2026 update (74 items). Medicare Advantage and commercial plans set their own prior-authorization rules for this code — verify per plan before delivery.

L5811 Medicare fee schedule (April 2026)

Base (no modifier) Prosthetics & orthotics

Medicare allowable ranges from $892.86 to $1651.67 depending on state and rural status.

Former-CBA payment limits: ceiling $1190.48 · floor $892.86

StateNon-ruralRural
AK$1544.62
AL$892.86
AR$974.83
AZ$1190.48
CA$1190.48
CO$1156.53
CT$1190.48
DC$892.86
DE$892.86
FL$892.86
GA$892.86
HI$1651.67
IA$938.62
ID$892.86
IL$966.47
IN$966.47
KS$938.62
KY$892.86
LA$974.83
MA$1190.48
MD$892.86
ME$1190.48
MI$966.47
MN$966.47
MO$938.62
MS$892.86
MT$1156.53
NC$892.86
ND$1156.53
NE$938.62
NH$1190.48
NJ$892.86
NM$974.83
NV$1190.48
NY$892.86
OH$966.47
OK$974.83
OR$892.86
PA$892.86
PR$1380.05
RI$1190.48
SC$892.86
SD$1156.53
TN$892.86
TX$974.83
UT$1156.53
VA$892.86
VI$892.86
VT$1190.48
WA$892.86
WI$966.47
WV$892.86
WY$1156.53
Amounts are the Medicare DMEPOS fee-schedule allowables effective April 2026. Medicare typically pays 80% of the allowable after the Part B deductible; the patient owes 20%. A 2% sequestration reduction applies to the Medicare share. Former competitive-bidding-area adjustments and non-continental rates can differ — verify with your DME MAC.

Common denial codes to watch

Related L-codes

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