Wednesday, August 10, 2016

Modifiers used in Ambualnce billing

General Billing Guidelines

Independent ambulance suppliers may bill on the ASC X12 837 professional claim transaction or the CMS-1500 form. These claims are processed using the Multi-Carrier System (MCS).

nstitution based ambulance providers may bill on the ASC X12 837 institutional claim transaction or Form CMS 1450. These claims are processed using the Fiscal Intermediary Shared System (FISS).

A. Modifiers Specific to Ambulance Service Claims

For ambulance service claims, institutional-based providers and suppliers must report an origin and destination modifier for each ambulance trip provided in HCPCS/Rates. Origin and destination modifiers used for ambulance services are created by combining two alpha characters. Each alpha character, with the exception of “X”, represents an origin code or a destination code. The pair of alpha codes creates one modifier. The first position alpha code equals origin; the second position alpha code equals destination. Origin and destination codes and their descriptions are listed below:

D = Diagnostic or therapeutic site other than P or H when these are used as origin codes;

E = Residential, domiciliary, custodial facility (other than 1819 facility);

G = Hospital based ESRD facility;

H = Hospital;

I = Site of transfer (e.g. airport or helicopter pad) between modes of ambulance transport;

J = Freestanding ESRD facility;

N = Skilled nursing facility;

P = Physician’s office;

R = Residence;

S = Scene of accident or acute event;

X = Intermediate stop at physician’s office on way to hospital (destination code only)

In addition, institutional-based providers must report one of the following modifiers with every HCPCS code to describe whether the service was provided under arrangement or directly:

QM - Ambulance service provided under arrangement by a provider of services; or

QN - Ambulance service furnished directly by a provider of services.

While combinations of these items may duplicate other HCPCS modifiers, when billed with an ambulance transportation code, the reported modifiers can only indicate origin/destination.

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