JK Modifier

One month supply or less of drug or biological

Active modifier

HCPCS modifierJK
Description
One month supply or less of drug or biological
Short description
Drug supply 1 month or less
Added
April 1, 2023
Last change
April 1, 2023

What does the JK modifier mean?

The HCPCS Level II modifier JK means: “One month supply or less of drug or biological”. 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 J modifiers