Last Modified: 9/24/2020
Location: FL, PR, USVI
Business: Part A, Part B
Q: How should we code the number of miles for ground or air ambulance trips?
A: Beginning with dates of service on and after January 1, 2011:
• For trips totaling up to 100 covered miles, suppliers must round the total miles up to the nearest tenth of a mile and report the resulting number with the appropriate healthcare common procedure coding system (HCPCS) code for ambulance mileage. The decimal must be used in the appropriate place (e.g., 99.9).
• For trips totaling 100 covered miles and greater, suppliers must report mileage rounded up to the next whole number mile without the use of a decimal (e.g., 998.5 miles should be reported as 999).
• For trips totaling less than 1 mile, enter a “0” before the decimal (e.g., 0.9).
• For mileage HCPCS billed on the ASC X12 837 professional transaction or the CMS-1500 paper form only, contractors shall automatically default to “0.1” units when the total mileage units are missing.
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