Reminder to Use Correct Billing Modifiers

Providers are reminded that recently implemented modifiers are only to be used for dates of service on or after the effective date noted in Medi-Cal Updates. For the following types of billing, providers should use the appropriate modifiers for the date of service billed.

Type of Billing	Old Modifiers	Current Modifiers	Date of Change
Telemedicine	TM	GT	August 1, 2005
Hearing Aids, Accessories and Services	Y1, Y2, Y6, Y7	NU, RR, RP	November 1, 2005
2005 Annual HCPCS/CPT-4 Code Update	YQ, YS, ZK, ZU, ZV	22, AG, ET, SA, SB, SC	November 1, 2005

For more in-depth details, see the following Medi-Cal Update for your specific provider community: For telemedicine, June 2005. For the annual HCPCS/CPT-4 Code Update and hearing aids, September 2005.