What type of code is exempt from using Modifier 51 for medical billing?

Codes that are already inclusive of all medical components and services can be exempt from using modifier 51 in medical billing.

Some examples include:

-Codes from the 01100-01999 range (HCPCS codes for drugs and biologicals administered through a parenteral route)

-Codes from the 90281-99999 range (HCPCS codes for medical and surgical supplies and services)

-Codes from the G0101-G0171 range (HCPCS codes for laboratory tests)

-Codes from the P9020-P9080 range (HCPCS codes for durable medical equipment)

-Codes from the A4550-A4559 range (HCPCS codes for orthotics and prosthetics)

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