E0491 HCPCS Level II Code: Oral device/appliance for neuromuscular electrical stimulation of the tongue muscle, used in conjunction with the power source and control electronics unit, controlled by hardware remote, 90-day…
Medicare Coverage & Payment
- CMS short descriptor: Oral dv nm mouthpc hw remote
- Medicare coverage: Carrier judgment (CMS coverage code C)
- Payment category: Inexpensive or routinely purchased DME (pricing indicator 32)
- BETOS: D1E — Other DME
- Last CMS action effective: January 1, 2025
Source: CMS HCPCS Level II release. Coverage codes indicate how Medicare treats the code, not whether a specific claim will be paid; payer policy and documentation still govern.
Contextual Map
Every relationship of E0491 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Nearest codes (40)
- E0433 — Portable liquid oxygen system, rental; home liquefier used to fill portable liquid oxygen containers, includes portable containers, regulator, flowmeter, humidifier, cannula or mask and tubing, with or without supply reservoir and contents gauge[Sibling]
- E0434 — Portable liquid oxygen system, rental; includes portable container, supply reservoir, humidifier, flowmeter, refill adaptor, contents gauge, cannula or mask, and tubing[Sibling]
- E0435 — Portable liquid oxygen system, purchase; includes portable container, supply reservoir, flowmeter, humidifier, contents gauge, cannula or mask, tubing and refill adaptor[Sibling]
- E0439 — Stationary liquid oxygen system, rental; includes container, contents, regulator, flowmeter, humidifier, nebulizer, cannula or mask, & tubing[Sibling]
- E0440 — Stationary liquid oxygen system, purchase; includes use of reservoir, contents indicator, regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing[Sibling]
- E0441 — Stationary oxygen contents, gaseous, 1 month's supply = 1 unit[Sibling]
- E0442 — Stationary oxygen contents, liquid, 1 month's supply = 1 unit[Sibling]
- E0443 — Portable oxygen contents, gaseous, 1 month's supply = 1 unit[Sibling]
- and 32 more
Change history
- October 1, 2023 — Added to the code set [Change history]
Sources for this page
Every coding fact on this page is read from the datasets below. Nothing is AI-generated; MedCoder-derived relationships and editorial are labelled where they appear.
- Code, descriptors, coverage and pricing attributes
- CMS HCPCS Alpha-Numeric (ANWEB) release — July 2026 quarterly update
- Change history and date-of-service validity
- CMS HCPCS quarterly update files, ingested into the change ledger
- Comparisons, relationships and the contextual map MedCoder-derived
- Derived by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Change history
- October 1, 2023Added to the code setOral device/appliance for neuromuscular electrical stimulation of the tongue muscle, used in conjunction with the power source and control electronics unit, controlled by hardware remote, 90-day supply
Nearest Codes in This Family
Official HCPCS Level II classifications closest to E0491 in its code family, with their registry titles.
- E0481 — Intrapulmonary percussive ventilation system and related accessories
- E0482 — Cough stimulating device, alternating positive and negative airway pressure
- E0483 — High frequency chest wall oscillation system, with full anterior and/or posterior thoracic region receiving simultaneous external oscillation, includes all accessories and supplies, each
- E0484 — Oscillatory positive expiratory pressure device, non-electric, any type, each
- E0485 — Oral device/appliance used to reduce upper airway collapsibility, adjustable or non-adjustable, prefabricated, includes fitting and adjustment
- E0486 — Oral device/appliance used to reduce upper airway collapsibility, adjustable or non-adjustable, custom fabricated, includes fitting and adjustment
- E0487 — Spirometer, electronic, includes all accessories
- E0490 — Power source and control electronics unit for oral device/appliance for neuromuscular electrical stimulation of the tongue muscle, controlled by hardware remote
- E0492 — Power source and control electronics unit for oral device/appliance for neuromuscular electrical stimulation of the tongue muscle, controlled by phone application
- E0493 — Oral device/appliance for neuromuscular electrical stimulation of the tongue muscle, used in conjunction with the power source and control electronics unit, controlled by phone application, 90-day…