GLHCPCS Level II
Medically unnecessary upgrade provided instead of non-upgraded item, no charge,
- Usage notes
- Append when a medically unnecessary upgrade to durable medical equipment was provided at no additional charge to the beneficiary.
- Common mistakes
- Billing the upgraded item's higher charge instead of the standard item's allowed amount when GL applies — GL specifically signals no extra beneficiary charge.
Related modifiers
G0Telehealth services for diagnosis, evaluation, or treatment, of symptoms of anG1Most recent urr reading of less than 60G2Most recent urr reading of 60 to 64.9G3Most recent urr reading of 65 to 69.9G4Most recent urr reading of 70 to 74.9G5Most recent urr reading of 75 or greaterG6Esrd patient for whom less than six dialysis sessions have been provided in aG7Pregnancy resulted from rape or incest or pregnancy certified by physician as
Frequently asked questions
What does modifier GL mean?
Medically unnecessary upgrade provided instead of non-upgraded item, no charge,
When do I use modifier GL?
Append when a medically unnecessary upgrade to durable medical equipment was provided at no additional charge to the beneficiary.
What's a common mistake with modifier GL?
Billing the upgraded item's higher charge instead of the standard item's allowed amount when GL applies — GL specifically signals no extra beneficiary charge.
HCPCS modifier data from CMS. CPT® is a registered trademark of the American Medical Association — CPT modifier descriptions are not included on this site. Always verify codes with authoritative sources before making billing decisions.