130 CMR 433.454
Anesthesia Services
(A) Payment.
(1) Payment Determination. The MassHealth agency pays an anesthesiologist or a Certified
Registered Nurse Anesthetist (CRNA) for anesthesia services as described in 101 CMR 316.00:
Surgery and Anesthesia, and 130 CMR 433.454. Payment for anesthesia services is determined using
a system of base anesthesia units and time anesthesia units.
(2) Base Anesthesia Units. Providers must report the administration of anesthesia on the claim by
using the applicable five-digit anesthesia procedure code (00100-01999), and any applicable
modifier. The anesthesia procedure code determines the number of base anesthesia units that
correspond to the procedure. If a base anesthesia unit is not established for a service, the MassHealth
agency pays using time anesthesia units only. When anesthesia is administered for multiple surgery
procedures, only the base anesthesia units corresponding to the procedure with the largest number of
units is used to determine payment. The number of base anesthesia units does not vary based on the
type of anesthesia that is administered.
(3) Time Anesthesia Units.
(a) Payable Anesthesia Time. Payable anesthesia time starts when the anesthesiologist or
CRNA begins to prepare the patient for the induction of anesthesia in the operating room or
equivalent area. Payable anesthesia time ends when the patient may be safely placed under
postoperative supervision.
(b) Reporting Time Anesthesia Units. A provider must report only payable time anesthesia units
in the number of units field on the claim. The provider must not include base anesthesia units or
units that exceed the criteria set forth in 130 CMR 433.454(A)(3)(a) in the number of units field.
Time anesthesia units are measured in minutes. One unit equals one minute.
(4) Personally Performed Anesthesia Services. Anesthesia procedures that are personally performed
alone by either an anesthesiologist, or a CRNA not employed by the facility in which the anesthesia
services are provided, are payable by MassHealth. For a CRNA, personally performed anesthesia
services are those that a CRNA performs alone without medical direction of an anesthesiologist.
Payment for personally performed anesthesia services may be claimed by appending the appropriate
anesthesia modifier to the anesthesia procedure code. If a CRNA is employed by the facility in
which the personally performed anesthesia services are provided, there is no separate payment for
the CRNA’s services. Refer to subchapter 6 of the Physician Manual for appropriate modifiers.
(5) Medical Direction and Medical Supervision. The MassHealth agency pays for medical direction
as described in 101 CMR 316.00: Surgery and Anesthesia and 130 CMR 433.454(C). Refer to
Subchapter 6 of the Physician Manual for appropriate modifiers. The MassHealth agency does not
pay for medical supervision as further described in 130 CMR
433.454(D).
(B) Services Provided by a Certified Registered Nurse-Anesthetist (CRNA).
(1) General. 130 CMR 433.454 applies specifically to physicians and CRNAs. In general
however, subject to compliance with state and federal law, the requirements and limitations
elsewhere in 130 CMR 433.000 that apply to physicians, also apply to CRNAs, such as service and
payment limitations, recordkeeping and reporting requirements, and prior-authorization and other
conditions of coverage.
(2) Conditions of Payment. The MassHealth agency pays a CRNA or group practice for CRNA
services when
(a) the services are limited to the scope of practice authorized by state law or regulation
(including, but not limited to, 244 CMR: Board of Registration in Nursing or of the state
licensing agency of another state in which the services are provided);
4. Program Regulations
(b) the CRNA or group practice is not an employee of the hospital or other facility in which the
CRNA services were performed, or is not otherwise paid by the hospital or facility for the
service;
(c) the CRNA participates in MassHealth pursuant to the requirements of 130 CMR
433.454(B)(3);
(d) the services of the CRNA are provided under the supervision of a physician such that the
operating physician or an anesthesiologist is immediately available if needed; and
(e) for an out of state CRNA the requirements of 130 CMR 433.403(C) are met.
(3) CRNA Provider Eligibility. A CRNA may enroll in MassHealth as a provider. Any CRNA
applying to participate as a provider in MassHealth must submit documentation, satisfactory to the
MassHealth agency, that he or she
(a) is licensed to practice as a CRNA by the Massachusetts Board of Registration in Nursing or
by the licensing agency of another state in which the CRNA services are provided; and
(b) is a member of a group practice or is in a solo private practice.
(C) Medical Direction of Anesthesia Services. The MassHealth agency pays an anesthesiologist for
medical direction of a CRNA as follows. The term medical direction is used in 130 CMR 433.454(C) for
payment purposes only.
(1) Medical direction of anesthesia services occurs when an anesthesiologist is involved in no more
than four concurrent anesthesia procedures and provides all of the following seven services to a
patient:
(a) perform a pre-anesthetic examination and evaluation;
(b) prescribe the anesthesia plan;
(c) personally participate in the most demanding procedures of the anesthesia plan including, if
applicable, induction and emergence;
(d) ensure that any procedures in the certified registered nurse anesthesia plan that he or she does
not perform, are performed by a qualified anesthetist;
(e) monitor the course of anesthesia administration at frequent intervals;
(f) remain physically present and available for immediate diagnosis and treatment of
emergencies; and
(g) provide the indicated post-anesthesia care.
(2) If one or more of the above services in 130 CMR 433.454(C)(1)(a) through (1)(g) are not
performed by the anesthesiologist, the service is not considered medical direction.
(3) Ordinarily, the anesthesiologist should not furnish additional services to other patients while
concurrently directing the administration of anesthesia. The anesthesiologist can, however, provide
any of the following services to other patients while medically directing the administration of
anesthesia without affecting the anesthesiologist’s ability to provide medical direction.
(a) addressing an emergency of short duration in the immediate area;
(b) administering an epidural or caudal anesthetic to ease labor pain;
(c) periodic rather than continuous monitoring of an obstetrical patient;
(d) receiving patients entering the operating suite for the next surgery;
(e) checking on or discharging patients from the post anesthesia care unit; and
(f) coordinating scheduling matters.
(4) Payment for medical direction of a CRNA may be claimed by appending the appropriate
anesthesia modifier to the anesthesia procedure code.
4. Program Regulations
(a) If an anesthesiologist provides medical direction of a CRNA who participates in MassHealth
in accordance with 130 CMR 433.454(B)(3) and is not employed by the facility in which the
anesthesia services are performed, the anesthesiologist receives fifty percent (50%) of the fee and
the CNRA receives fifty percent (50%) of the fee.
(b) If an anesthesiologist provides medical direction of a CRNA employed by a facility in which
the anesthesia service is performed, the anesthesiologist receives fifty percent (50%) of the fee,
but no separate payment is made for the CRNA’s services.
(c) Anesthesiologists and CRNAs should refer to subchapter 6 of the Physician Manual for
appropriate modifiers.
(D) Medical Supervision of Anesthesia Services. The MassHealth agency does not pay a physician
for medical supervision of a CRNA. The term medical supervision is used in this section for payment
purposes only.
(1) Medical supervision of anesthesia services occurs when an anesthesiologist is involved in five or
more concurrent anesthesia procedures and when the anesthesiologist provides some, but not all of
the seven required services under medical direction in 130 CMR 433.454(C)(1)(a) through (1)(g).
(2) Medical supervision also occurs when the seven required services under medical direction in 130
CMR 433.454(C)(1)(a) through (1)(g) are not performed by an anesthesiologist. This might occur in
cases when the anesthesiologist:
(a) left the immediate area of the operating suite for more than a short duration;
(b) devote extensive time to an emergency case; or
(c) was otherwise not available to respond to the immediate needs of the surgical patients.
(E) Acupuncture as an Anesthetic. The MassHealth agency pays for acupuncture as a substitute for
conventional surgical anesthesia (see 130 CMR 433.440).