Use HCPCS modifiers to indicate that a service or procedure that has been performed has been altered by some specific circumstance but not changed in its definition or code.

A modifier provides the means by which the reporting physician or provider can indicate that a service or procedure that has been performed has been altered by some specific circumstance …

The complete 2025 HCPCS Level II code reference, FREE. Find the procedure code you are looking for from over 6000 HCPCS codes.

Find HCPCS codes. Search through the 2025 Healthcare Common Procedure Coding System.

A modifier provides the means by which the reporting physician or provider can indicate that a service or procedure that has been performed has been altered by some specific circumstance …

HCPCS Code E1390 for Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate.

A modifier provides the means by which the reporting physician or provider can indicate that a service or procedure that has been performed has been altered by some specific circumstance …

In HCPCS Level II, modifiers are composed of two alpha or alphanumeric characters. Example: E0260-NU - Hospital bed, semi-electric (head and foot adjustment), with any type side rails, …

A modifier provides the means by which the reporting physician or provider can indicate that a service or procedure that has been performed has been altered by some specific circumstance …

In HCPCS Level II, modifiers are composed of two alpha or alphanumeric characters. Example: E0260-NU - Hospital bed, semi-electric (head and foot adjustment), with any type side rails, …