A/B jurisdictions

Fifteen regions in the United States assigned to Medicare Administrative Contractors (MACs) for receiving and processing insurance claims for Medicare Parts A and B.

Medicare Parts A/B Jurisdictions of Medicare Administrative Contractors (MACs) .

Jurisdiction 1: American Samoa, California, Guam, Hawaii, Nevada, and Northern Mariana Islands.

Jurisdiction 2: Alaska, Idaho, Oregon, and Washington.

Jurisdiction 3: Arizona, Montana, North Dakota, South Dakota, Utah, and Wyoming.

Jurisdiction 4: Colorado, New Mexico, Oklahoma, and Texas.

Jurisdiction 5: Iowa, Kansas, Missouri, and Nebraska.

Jurisdiction 6: Illinois, Minnesota, and Wisconsin.

Jurisdiction 7: Arkansas, Louisiana, and Mississippi.

Jurisdiction 8: Indiana and Michigan.

Jurisdiction 9: Florida, Puerto Rico, and U.S. Virgin Islands.

Jurisdiction 10: Alabama, Georgia, and Tennessee.

Jurisdiction 11: North Carolina, South Carolina, Virginia, and West Virginia.

Jurisdiction 12: Delaware, District of Columbia, Maryland, New Jersey, and Pennsylvania.

Jurisdiction 13: Connecticut and New York.

Jurisdiction 14: Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont.

Jurisdiction 15: Kentucky and Ohio.

A1

MARINE: This is the highest rating given by Lloyd’s Register to a ship for its seaworthiness. It is also known as “First Class.” The letter “A” indicates that the ship’s hull is strong and safe on the water, and the letter “1” indicates that its rigging and gear are in good condition.

USA MEDICAL: HCPCS Level II modifier for wound dressing that can be used with CPT or HCPCS Level II codes. The use of this modifier has an impact on Medicare payment.