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LIST OF MODIFIERS

Modifier - as the name implies a modifier will modify a service / procedure or an item under certain circumstances for appropriate reimbur...

Revised and New Modifiers for Oxygen Flow Rate


Medicare pays a monthly fee schedule amount for oxygen and oxygen equipment per beneficiary. For stationary oxygen equipment, this monthly fee schedule amount covers the oxygen equipment, contents and supplies and is subject to adjustment depending on the amount of oxygen prescribed (liters per minute (LPM)) and whether or not portable oxygen is also prescribed.

To assist in identifying the prescribed flow rate on the claim form, and to ensure appropriate use of modifiers in all cases based on the prescribed flow rate at rest (or at night or based on the average of the rate at rest and at night if applicable) in accordance with Federal regulations, the following three new pricing modifiers are added to the HCPCS file effective April 1, 2018:

1. QA - Prescribed amounts of stationary oxygen for daytime use while at rest and nighttime use differ and the average of the two amounts is less than 1 liter per minute (LPM)

2. QB - Prescribed amounts of stationary oxygen for daytime used while at rest and nighttime use differ and the average of the two amounts exceeds 4 liters per minute (LPM) and portable oxygen is prescribed

3. QR - Prescribed amounts of stationary oxygen for daytime use while at rest and nighttime use differ and the average of the two amounts is greater than 4 liters per minute (LPM)

Additionally, the existing QE, QF, and QG modifiers are revised to clarify that the prescribed flow rate at rest is used in accordance with regulations at 42 CFR 414.226(e)(3). This section instructs that if the prescribed flow rate is different for the patient at rest than for the patient at exercise, the flow rate for the patient at rest is used.

Effective April 1, 2018, these modifiers are revised to read:

1. QE - Prescribed amount of stationary oxygen while at rest is less than 1 liter per minute (LPM)

2. QF - Prescribed amount of stationary oxygen while at rest exceeds 4 liters per minute (LPM) and portable oxygen is prescribed

3. QG - Prescribed amount of stationary oxygen while at rest is greater than 4 liters per minute (LPM)


For more information: https://www.cms.gov/Outreach-and-Education/Medicare-Learning-Network-MLN/MLNMattersArticles/Downloads/MM10158.pdf

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