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On December 6, 2018, the DME MACs issued a joint publication notifying suppliers of a change in the way to bill for bilateral products dispensed on the same day. Previously, when two of the same items are given to patients for use on both limbs, the claim is billed with the RTLT modifier and 2 units of service.

Effective for claims with dates of service on or after March 1, 2019, suppliers must bill bilateral products on two separate claim lines. One line will have the HCPCS code with the RT modifier and the next claim line will have the same HCPCS code with the LT modifier. Each unit of service is one.

Bilateral items not billed on separate claim lines will be returned as unprocessable.  Claims returned as unprocessable must be resubmitted.  Unprocessable claims do not have appeal rights and cannot be reopened or submitted for adjustment. 

Below is a list of the HCPCS requiring RT and LT modifiers and impacted by the updated Policy Articles:

Ankle-Foot/Knee-Ankle-Foot Orthoses (AFO/KAFO):

A4467, A9283, A9285, L1900, L1902, L1904, L1906, L1907, L1910, L1920, L1930, L1932, L1940, L1945, L1950, L1951, L1960, L1970, L1971, L1980, L1990, L2000, L2005, L2010, L2020, L2030, L2034, L2035, L2036, L2037, L2038, L2106, L2108, L2112, L2114, L2116, L2126, L2128, L2132, L2134, L2136, L2180, L2182, L2184, L2186, L2188, L2190, L2192, L2200, L2210, L2220, L2230, L2232, L2240, L2250, L2260, L2265, L2270, L2275, L2280, L2300, L2310, L2320, L2330, L2335, L2340, L2350, L2360, L2370, L2375, L2380, L2385, L2387, L2390, L2395, L2397, L2405, L2415, L2425, L2430, L2492, L2500, L2510, L2520, L2525, L2526, L2530, L2540, L2550, L2750, L2755, L2760, L2768, L2780, L2785, L2795, L2800, L2810, L2820, L2830, L2840, L2850, L2999, L4350, L4360, L4361, L4370, L4386, L4387, L4394, L4396, L4397, L4398, and L4631

External Breast Prostheses (EBP):

A4280, L8020, L8030, L8031, L8032, L8035, and L8039

Eye Prostheses:

L9900, V2623, V2624, V2625, V2626, V2627, V2628, and V2629

Facial Prostheses:

L8042, L8043, L8045, L8046, V2623, and V2629

Knee Orthosis (KO):

A4467, K0672, L1810, L1812, L1820, L1830, L1831, L1832, L1833, L1834, L1836, L1840, L1843, L1844, L1845, L1846, L1847, L1848, L1850, L1851, L1852, L1860, L2275, L2320, L2330, L2385, L2390, L2395, L2397, L2405, L2415, L2425, L2430, L2492, L2750, L2755, L2780, L2785, L2795, L2800, L2810, L2820, L2830, L2999, L4002, and L9900

Lower Limb Prostheses (LLP):

L5000, L5010, L5020, L5050, L5060, L5100, L5105, L5150, L5160, L5200, L5210, L5220, L5230, L5250, L5270, L5280, L5301, L5312, L5321, L5331, L5341, L5400, L5410, L5420, L5430, L5450, L5460, L5500, L5505, L5510, L5520, L5530, L5535, L5540, L5560, L5570, L5580, L5585, L5590, L5595, L5600, L5610, L5611, L5613, L5614, L5616, L5617, L5618, L5620, L5622, L5624, L5626, L5628, L5629, L5630, L5631, L5632, L5634, L5636, L5637, L5638, L5639, L5640, L5642, L5643, L5644, L5645, L5646, L5647, L5648, L5649, L5650, L5651, L5652, L5653, L5654, L5655, L5656, L5658, L5661, L5665, L5666, L5668, L5670, L5671, L5672, L5673, L5676, L5677, L5678, L5679, L5680, L5681, L5682, L5683, L5684, L5685, L5686, L5688, L5690, L5692, L5694, L5695, L5696, L5697, L5698, L5699, L5700, L5701, L5702, L5703, L5704, L5705, L5706, L5707, L5710, L5711, L5712, L5714, L5716, L5718, L5722, L5724, L5726, L5728, L5780, L5781, L5782, L5785, L5790, L5795, L5810, L5811, L5812, L5814, L5816, L5818, L5822, L5824, L5826, L5828, L5830, L5840, L5845, L5848, L5850, L5855, L5856, L5857, L5858, L5859, L5910, L5920, L5925, L5930, L5940, L5950, L5960, L5961, L5962, L5964, L5966, L5968, L5969, L5970, L5971, L5972, L5973, L5974, L5975, L5976, L5978, L5979, L5980, L5981, L5982, L5984, L5985, L5986, L5987, L5988, L5990, L5999, L7360, L7362, L7364, L7366, L7367, L7368, L7510, L7520, L7600, L7700, L8400, L8410, L8417, L8420, L8430, L8440, L8460, L8470, and L8480

Orthopedic Footwear:

A9283, L3000, L3001, L3002, L3003, L3010, L3020, L3030, L3031, L3040, L3050, L3060, L3070, L3080, L3090, L3100, L3140, L3150, L3160, L3170, L3201, L3202, L3203, L3204, L3206, L3207, L3208, L3209, L3211, L3215, L3216, L3217, L3219, L3221, L3222, L3224, L3225, L3230, L3250, L3251, L3252, L3253, L3254, L3255, L3257, L3260, L3265, L3300, L3310, L3320, L3330, L3332, L3334, L3340, L3350, L3360, L3370, L3380, L3390, L3400, L3410, L3420, L3430, L3440, L3450, L3455, L3460, L3465, L3470, L3480, L3485, L3500, L3510, L3520, L3530, L3540, L3550, L3560, L3570, L3580, L3590, L3595, L3600, L3610, L3620, L3630, L3640, and L3649

Refractive Lenses:

V2100, V2101, V2102, V2103, V2104, V2105, V2106, V2107, V2108, V2109, V2110, V2111, V2112, V2113, V2114, V2115, V2118, V2121, V2199, V2200, V2201, V2202, V2203, V2204, V2205, V2206, V2207, V2208, V2209, V2210, V2211, V2212, V2213, V2214, V2215, V2218, V2219, V2220, V2221, V2299, V2300, V2301, V2302, V2303, V2304, V2305, V2306, V2307, V2308, V2309, V2310, V2311, V2312, V2313, V2314, V2315, V2318, V2319, V2320, V2321, V2399, V2410, V2430, V2499, V2500, V2501, V2502, V2503, V2510, V2511, V2512, V2513, V2520, V2521, V2522, V2523, V2530, V2531, V2599, V2610, V2615, V2700, V2702, V2710, V2715, V2718, V2730, V2744, V2745, V2750, V2755, V2756, V2760, V2761, V2762, V2770, V2780, V2781, V2782, V2783, V2784, V2786, V2797, and V2799

Surgical Dressings:

A6531, A6532, and A6545

Therapeutic Shoes for Persons with Diabetes (TSD):

A5500, A5501, A5503, A5504, A5505, A5506, A5507, A5508, A5510, A5512, A5513, and K0903

Note: When same HCPCS code inserts are provided on the same date of service, bill the total number of units provided for the right side on a single claim line and the total number of units for the left side on a separate claim line.

Wheelchair Options/Accessories:

E0951, E0952, E0954, E0961, E0967, E0971, E0973, E0974, E0990, E0995, E1009, E1015, E1016, E1017, E1018, E1020, E2205, E2206, E2209, E2211, E2212, E2213, E2216, E2218, E2220, E2224, E2227, E2381, E2382, E2383, E2386, E2388, E2390, E2394, K0015, K0017, K0018, K0019, K0037, K0040, K0041, K0042, K0043, K0044, K0045, K0046, K0047, K0050, K0051, K0052, K0053, K0065, K0069, K0070, K0071, K0072, and K0077

Wheelchair Seating:

The Wheelchair Seating Policy Article was not updated with the articles addressed in the December 6, 2018 joint publication.  Below is the listing of Wheelchair Seating HCPCS that require the RT and LT modifiers. When provided bilaterally on the same date of service, these items must also be billed on separate claim lines.

E0953, E0956, E1028 (RT/LT modifiers depending on the situation), and K0108 (RT/LT modifiers depending on the situation or item provided)