GH Modifier

Diagnostic mammogram converted from screening mammogram on same day

Active modifier

HCPCS modifierGH
Description
Diagnostic mammogram converted from screening mammogram on same day
Short description
Diag mammo to screening mamo
Added
October 1, 1998
Last change
October 1, 1998

What does the GH modifier mean?

The HCPCS Level II modifier GH means: “Diagnostic mammogram converted from screening mammogram on same day”. Append it to a HCPCS or CPT code on the claim line when the payer’s policy calls for it; placement and payment effects are defined by each payer.

Other G modifiers