Medicare Claims Processing Manual (Pub. 100-04), Ch. 15 § 30.2.4
Non-covered Charges on Institutional Ambulance Claims
30.2.4 - Non-covered Charges on Institutional Ambulance Claims
(Rev. 1921, Issued: 02-19-10, Effective: 04-01-10, Implementation: 04-05-10)
Medicare law contains a restriction that miles beyond the closest available facility cannot be
billed to Medicare. Non-covered miles beyond the closest facility are billed with HCPCS
procedure code A0888 (“non-covered ambulance mileage per mile, e.g., for miles traveled
beyond the closest appropriate facility”). These non-covered line items can be billed on claims
also containing covered charges. Ambulance claims may use the -GY modifier on line items for
such non-covered mileage, and liability for the service will be assigned correctly to the
beneficiary.
The method of billing all miles for the same trip, with covered and non-covered portions, on the
same claim is preferable in this scenario. However, billing the non-covered mileage using
condition code 21 claims is also permitted, if desired, as long as all line items on the claims are
non-covered and the beneficiary is liable. Additionally, unless requested by the beneficiary or
required by specific Medicare policy, services excluded by statute do not have to be billed to
Medicare.
When the scenario is point of pick up outside the United States, including U.S. territories but
excepting some points in Canada and Mexico in some cases, mileage is also statutorily excluded
from Medicare coverage. Such billings are more likely to be submitted on entirely non-covered
claims using condition code 21. This scenario requires the use of a different message on the
Medicare Summary Notice (MSN) sent to beneficiaries.
Another scenario in which billing non-covered mileage to Medicare may occur is when the
beneficiary dies after the ambulance has been called but before the ambulance arrives. The -QL
modifier should be used on the base rate line in this scenario, in place of origin and destination
modifiers, and the line is submitted with covered charges. The -QL modifier should also be used
on the accompanying mileage line, if submitted, with non-covered charges. Submitting this non-
covered mileage line is optional for providers.
Non-covered charges may also apply is if there is a subsidy of mileage charges that are never
charged to Medicare. Because there are no charges for Medicare to share in, the only billing
option is to submit non-covered charges, if the provider bills Medicare at all (it is not required in
such cases). These non-covered charges are unallowable, and should not be considered in
settlement of cost reports. However, there is a difference in billing if such charges are
subsidized, but otherwise would normally be charged to Medicare as the primary payer. In this
latter case, CMS examination of existing rules relating to grants policy since October 1983,
supported by Federal regulations (42CFR 405.423), generally requires providers to reduce their
costs by the amount of grants and gifts restricted to pay for such costs. Thereafter, section
405.423 was deleted from the regulations.
Thus, providers were no longer required to reduce their costs for restricted grants and gifts, and
charges tied to such grants/gifts/subsidies should be submitted as covered charges. This is in
keeping with Congress’s intent to encourage hospital philanthropy, allowing the provider
receiving the subsidy to use it, and also requiring Medicare to share in the unreduced cost.
Treatment of subsidized charges as non-covered Medicare charges serves to reduce Medicare
payment on the Medicare cost report contrary to the 1983 change in policy.
Medicare requires the use of the -TQ modifier so that CMS can track the instances of the subsidy
scenario for non-covered charges. The -TQ should be used whether the subsidizing entity is
governmental or voluntary. The -TQ modifier is not required in the case of covered charges
submitted when a subsidy has been made, but charges are still normally made to Medicare as the
primary payer.
If providers believe they have been significantly or materially penalized in the past by the failure
of their cost reports to consider covered charges occurring in the subsidy case, since Medicare
had previous billing instructions that stated all charges in the case of a subsidy, not just charges
when the entity providing the subsidy never charges another entity/primary payer, should be
submitted as non-covered charges, they may contact their A/B MAC (A) about reopening the
reports in question for which the time period in 42 CFR 405.1885 has not expired. A/B MACs
(A) have the discretion to determine if the amount in question warrants reopening. The CMS
does not expect many such cases to occur.
Billing requirements for all these situations, including the use of modifiers, are presented in the
chart below:
Mileage
Scenario
HCPCS
Modifiers*
Liab-
ility
Billing
Remit.
Require
-ments
MSN Message
STATUTE:
Miles beyond
closest
facility,
OR
**Pick up
point outside
of U.S.
A0888 on
line item
for the
non-
covered
mileage
-QM or
-QN,
origin/destin
ation
modifier,
and -GY
unless
condition
code 21
claim used
Bene-
ficiary
Bill mileage line
item with A0888
-GY and other
modifiers as
needed to
establish
liability, line
item will be
denied; OR bill
service on
condition code
21 claim, no
-GY required,
claim will be
denied
Group
code
PR,
reason
code 96
16.10
“Medicare
does not pay
for this item or
service”; OR,
“Medicare no
paga por este
artículo o
servicio”
Beneficiary
dies after
ambulance is
called
Most
appropria
te
ambulanc
e HCPCS
mileage
code (i.e.,
ground,
air)
-QL unless
condition
code -21
claim
Pro-
vider
Bill mileage line
item with -QL as
non-covered,
line item will be
denied
Group
Code
CO,
reason
code 96
16.58 “The
provider billed
this charge as
non-covered.
You do not
have to pay
this amount.”
OR, “El
proveedor
facuró este
cargo como no
cubierto.
Usted no tiene
que pagar ests
cantidad.”
Mileage
Scenario
HCPCS
Modifiers*
Liab-
ility
Billing
Remit.
Require
-ments
MSN Message
Subsidy or
government
owned
Ambulance,
Medicare
NEVER
billed***
A0888 on
line item
for the
non-
covered
mileage
-QM or
-QN, origin/
destination
modifier,
and
-TQ must be
used for
policy
purposes
Pro-
vider
Bill mileage line
item with
A0888, and
modifiers as
non-covered,
line item will be
denied
Group
Code
CO,
reason
code 96
16.58 “The
provider billed
this charge as
non-covered.
You do not
have to pay
this amount.”
OR, “El
proveedor
facuró este
cargo como no
cubierto. Usted
no tiene que
pagar ests
cantidad.”
* Current ambulance billing requirements state that either the -QM or -QN modifier must be
used on services. The -QM is used when the “ambulance service is provided under arrangement
by a provider of services,” and the -QN when the “ambulance service is provided directly by a
provider of services.” Line items using either the -QM or -QN modifiers are not subject to the
FISS edit associated with FISS reason code 31322 so that these lines items will process to
completion. Origin/destination modifiers, also required by current instruction, combine two
alpha characters: one for origin, one for destination, and are not non-covered by definition.
** This is the one scenario where the base rate is not paid in addition to mileage, and there are
certain exceptions in Canada and Mexico where mileage is covered as described in existing
ambulance instructions.
***If Medicare would normally have been billed, submit mileage charges as covered charges
despite subsidies.
Medicare systems may return claims to the provider if they do not comply with the requirements
in the table.