Effective September 22, 2003, Medi-Cal will implement changes to national codes, as published in previous Medi-Cal Updates, to comply with the federally mandated Health Insurance Portability and Accountability Act (HIPAA) Transactions and Code Sets Final Rule. Medi-Cal claims with dates of service on or after September 22, 2003 must be billed with the national codes specified. Claims with dates of service that span the September 22, 2003 implementation date must be billed in the following manner:

If a claim contains multiple service details and the "Dates of Service" for these details span the September 22, 2003 implementation date, the detail lines for dates of service prior to September 22, 2003 must be billed on a separate claim from those with dates of service on or after September 22, 2003. The appropriate code sets as defined in the correlation tables published in the June Medi-Cal Update must be used for the appropriate date of service. For example:

Example	Date of Service	Value
1	092103	Current
2	092203	National
3	092303	National

Example 1 is billed on one claim and Examples 2 and 3 are billed on a separate claim.

Claims involving "from-through" or "global" billing do not have to be split billed. For such claims, the "From Date(s) of Service" date determines the appropriate code value. Claims with a "From Date(s) of Service" date prior to September 22, 2003 must be billed with appropriate local values. Claims with a "From Date(s) of Service" date on or after September 22, 2003 must be billed with appropriate national values. For example:

Example	Date of Service	Value
1	090103 – 092103	Current
2	091803 – 092403	Current
3	092503 – 093003	National