| HCPCS A4615 | Cannula, nasal | Current code | 1 hospital |
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| HCPCS A4616 | Tubing (oxygen), per foot | Current code | none yet |
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| HCPCS A4617 | Mouth piece | Current code | 1 hospital |
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| HCPCS 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 | Current code | 12 hospitals |
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| HCPCS E0434 | Portable liquid oxygen system, rental; includes portable container, supply reservoir, humidifier, flowmeter, refill adaptor, contents gauge, cannula or mask, and tubing | Current code | 12 hospitals |
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| HCPCS E0439 | Stationary liquid oxygen system, rental; includes container, contents, regulator, flowmeter, humidifier, nebulizer, cannula or mask, & tubing | Current code | 12 hospitals |
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| HCPCS E0441 | Stationary oxygen contents, gaseous, 1 month's supply = 1 unit | Current code | 13 hospitals |
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| HCPCS E0442 | Stationary oxygen contents, liquid, 1 month's supply = 1 unit | Current code | 13 hospitals |
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| HCPCS E0443 | Portable oxygen contents, gaseous, 1 month's supply = 1 unit | Current code | 13 hospitals |
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| HCPCS E0444 | Portable oxygen contents, liquid, 1 month's supply = 1 unit | Current code | 13 hospitals |
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| HCPCS E0445 | Oximeter device for measuring blood oxygen levels non-invasively | Current code | 1 hospital |
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| HCPCS E0447 | Portable oxygen contents, liquid, 1 month's supply = 1 unit, prescribed amount at rest or nighttime exceeds 4 liters per minute (lpm) | Current code | 13 hospitals |
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| HCPCS E1353 | Regulator | Current code | 11 hospitals |
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| HCPCS E1355 | Stand/rack | Current code | 11 hospitals |
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| HCPCS E1405 | Oxygen and water vapor enriching system with heated delivery | Current code | 12 hospitals |
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| HCPCS E1406 | Oxygen and water vapor enriching system without heated delivery | Current code | 12 hospitals |
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