L1847 – Knee orthosis, double upright with adjustable joint, with inflatable air support chamber(s), prefabricated item that has been trimmed, bent, molded, assembled, or otherwise customized to fit a specific patient by an individual with expertise
HCPCS Level II code · L codes: Orthotic and Prosthetic Procedures and Devices
HCPCS codeL1847
- Long description
- Knee orthosis, double upright with adjustable joint, with inflatable air support chamber(s), prefabricated item that has been trimmed, bent, molded, assembled, or otherwise customized to fit a specific patient by an individual with expertise
- Short description
- Ko dbl upright w/air pre cst
- Pricing indicator
38Orthotics, prosthetics, prosthetic devices & vision services- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
D1FProsthetic/Orthotic devices- Added
- January 1, 1999
- Last change
- January 1, 2014 – No change
Frequently asked questions
What is HCPCS code L1847?
L1847 is a HCPCS Level II code for knee orthosis, double upright with adjustable joint, with inflatable air support chamber(s), prefabricated item that has been trimmed, bent, molded, assembled, or otherwise customized to fit a specific patient by an individual with expertise.
Does Medicare cover L1847?
The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby L codes
- L1833 – Knee orthosis, adjustable knee joints (unicentric or polycentric), positional orthosis, rigid support, prefabricated, off-the shelf
- L1834 – Knee orthosis, without knee joint, rigid, custom fabricated
- L1836 – Knee orthosis, rigid, without joint(s), includes soft interface material, prefabricated, off-the-shelf
- L1840 – Knee orthosis, derotation, medial-lateral, anterior cruciate ligament, custom fabricated
- L1843 – Knee orthosis, single upright, thigh and calf, with adjustable flexion and extension joint (unicentric or polycentric), medial-lateral and rotation control, with or without varus/valgus adjustment, prefabricated item that has been trimmed, bent, molded, assembled, or otherwise customized to fit a specific patient by an individual with expertise
- L1844 – Knee orthosis, single upright, thigh and calf, with adjustable flexion and extension joint (unicentric or polycentric), medial-lateral and rotation control, with or without varus/valgus adjustment, custom fabricated
- L1845 – Knee orthosis, double upright, thigh and calf, with adjustable flexion and extension joint (unicentric or polycentric), medial-lateral and rotation control, with or without varus/valgus adjustment, prefabricated item that has been trimmed, bent, molded, assembled, or otherwise customized to fit a specific patient by an individual with expertise
- L1846 – Knee orthosis, double upright, thigh and calf, with adjustable flexion and extension joint (unicentric or polycentric), medial-lateral and rotation control, with or without varus/valgus adjustment, custom fabricated
- L1848 – Knee orthosis, double upright with adjustable joint, with inflatable air support chamber(s), prefabricated, off-the-shelf
- L1850 – Knee orthosis, swedish type, prefabricated, off-the-shelf
- L1851 – Knee orthosis (ko), single upright, thigh and calf, with adjustable flexion and extension joint (unicentric or polycentric), medial-lateral and rotation control, with or without varus/valgus adjustment, prefabricated, off-the-shelf
- L1852 – Knee orthosis (ko), double upright, thigh and calf, with adjustable flexion and extension joint (unicentric or polycentric), medial-lateral and rotation control, with or without varus/valgus adjustment, prefabricated, off-the-shelf
- L1860 – Knee orthosis, modification of supracondylar prosthetic socket, custom fabricated (sk)
- L1900 – Ankle foot orthosis, spring wire, dorsiflexion assist calf band, custom fabricated
- L1902 – Ankle orthosis, ankle gauntlet or similar, with or without joints, prefabricated, off-the-shelf
- L1904 – Ankle orthosis, ankle gauntlet or similar, with or without joints, custom fabricated
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.