- Waiver, T2012-T2050
- Walker, E0130-E0149
- accessories, A4636, A4637
- attachments, E0153-E0159
- Walking splint, L4386
- Water
- distilled (for nebulizer), A7018
- pressure pad/mattress, E0187, E0198
- purification system (ESRD), E1610, E1615
- softening system (ESRD), E1625
- sterile, A4714
- Wedges, shoe, L3340-L3420
- Wet mount, Q0111
- Wheel attachment, rigid pickup walker, E0155
- Wheelchair, E0950-E1298, K0001-K0108
- accessories, E0192, E0950-E1030, E1065-E1069, E2211-E2230, E2300-E2399
- amputee, E1170-E1200
- back, fully reclining, manual, E1226
- component or accessory, not otherwise specified, K0108
- cushions, E2601-E2625
- dynamic positioning hardware for back, E2398
- foot box, E0954
- lateral thigh or knee support, E0953
- narrowing device, E0969
- power add-on, E0983-E0984
- shock absorber, E1015-E1018
- specially sized, E1220, E1230
- stump support system, K0551
- tire, E0999
- transfer board or device, E0705
- tray, K0107
- van, non-emergency, A0130
- youth, E1091
- WHFO with inflatable air chamber, L3807
- WHO, wrist extension, L3914
- Whirlpool equipment, E1300-E1310
- Whirlpool tub, walk-in, portable, K1003
- Wig, A9282
- Wipes, A4245, A4247
- Wound cleanser, A6260
- Wound cover
- alginate dressing, A6196-A6198
- collagen dressing, A6020-A6024
- foam dressing, A6209-A6214
- hydrocolloid dressing, A6234-A6239
- hydrogel dressing, A6242-A6247
- non-contact wound warming cover, and accessory, E0231, E0232
- specialty absorptive dressing, A2001-A2010, A6251-A6256
- Wound filler
- alginate dressing, A6199
- collagen based, A6010
- foam dressing, A6215
- hydrocolloid dressing, A6240, A6241
- hydrogel dressing, A6248
- not elsewhere classified, A6261, A6262
- Woundfix, Woundfix Plus, Q4217
- Wound pouch, A6154
- Wrist
- disarticulation prosthesis, L6050, L6055
- electronic wrist rotator, L7259
- hand/finger orthosis (WHFO), E1805, E1825, L3800-L3954