Medicare Claims Processing Manual (Pub. 100-04), Ch. 5 § 10.6
Functional Reporting
10.6 - Functional Reporting
(Rev. 4214, Issued: 01-25-19, Effective: 01-01-19, Implementation: 02-26-19)
A. General
Section 3005(g) of the Middle Class Tax Relief and Jobs Creation Act (MCTRJCA)
amended Section 1833(g) of the Act to require a claims-based data collection system for
outpatient therapy services, including physical therapy (PT), occupational therapy (OT)
and speech-language pathology (SLP) services. 42 CFR 410.59, 410.60, 410.61, 410.62
and 410.105 implement this requirement. The system will collect data on beneficiary
function during the course of therapy services in order to better understand beneficiary
conditions, outcomes, and expenditures.
Beneficiary function information is reported using 42 nonpayable functional G-codes and
seven severity/complexity modifiers on claims for PT, OT, and SLP services. Functional
reporting on one functional limitation at a time is required periodically throughout an
entire PT, OT, or SLP therapy episode of care.
The nonpayable G-codes and severity modifiers provide information about the
beneficiary’s functional status at the outset of the therapy episode of care, including
projected goal status, at specified points during treatment, and at the time of discharge.
These G-codes, along with the associated modifiers, are required at specified intervals on
all claims for outpatient therapy services – not just those over the cap.
In the CY 2019 Physician Fee Schedule final rule, CMS-1693-F, after consideration of
stakeholders’ requests for burden reduction, a review of all of the MCTRJCA requirements,
and in light of the statutory amendments to section 1833(g) of the Act, via section 50202 of
Bipartisan Budget Act of 2018 to repeal the therapy caps, CMS concluded that continued
collection of functional reporting data through the same format would not yield additional
information to inform future analyses or to serve as a basis for reforms to the payment system
for therapy services. The rule ended the functional reporting requirements to reduce burden
of reporting for providers of therapy services and revised regulation text at 42 CFR 410.59,
410.60, 410.61, 410.62, 410.105, accordingly.
The instructions below apply only to dates of service when the reporting requirement was
effective, January 1, 2013 through December 31, 2018.
B. Application of Coding Requirements
This functional data reporting and collection system is effective for therapy services with
dates of service on and after January 1, 2013 and before January 1, 2019.
C. Services Affected
These requirements apply to all claims for services furnished under the Medicare Part B
outpatient therapy benefit and the PT, OT, and SLP services furnished under the CORF
benefit. They also apply to the therapy services furnished personally by and incident to
the service of a physician or a nonphysician practitioner (NPP), including a nurse
practitioner (NP), a certified nurse specialist (CNS), or a physician assistant (PA), as
applicable.
D. Providers and Practitioners Affected.
The functional reporting requirements apply to the therapy services furnished by the
following providers: hospitals, CAHs, SNFs, CORFs, rehabilitation agencies, and HHAs
(when the beneficiary is not under a home health plan of care). It applies to the following
practitioners: physical therapists, occupational therapists, and speech-language
pathologists in private practice (TPPs), physicians, and NPPs as noted above. The term
“clinician” is applied to these practitioners throughout this manual section. (See
definition section of Pub. 100-02, Chapter 15, section 220.)
E. Function-related G-codes
There are 42 functional G-codes, 14 sets of three codes each. Six of the G-code sets are
generally for PT and OT functional limitations and eight sets of G-codes are for SLP
functional limitations.
The following G-codes are for functional limitations typically seen in beneficiaries
receiving PT or OT services. The first four of these sets describe categories of functional
limitations and the final two sets describe “other” functional limitations, which are to be
used for functional limitations not described by one of the four categories.
NONPAYABLE G-CODES FOR FUNCTIONAL LIMITATIONS
Code
Long Descriptor
Short Descriptor
Mobility G-code Set
G8978
Mobility: walking & moving around functional
limitation, current status, at therapy episode
outset and at reporting intervals
Mobility current status
G8979
Mobility: walking & moving around functional
limitation, projected goal status, at therapy
episode outset, at reporting intervals, and at
discharge or to end reporting
Mobility goal status
G8980
Mobility: walking & moving around functional
limitation, discharge status, at discharge from
therapy or to end reporting
Mobility D/C status
Changing & Maintaining Body Position G-code Set
G8981
Changing & maintaining body position functional
limitation, current status, at therapy episode
outset and at reporting intervals
Body pos current
status
G8982
Changing & maintaining body position functional
limitation, projected goal status, at therapy
episode outset, at reporting intervals, and at
discharge or to end reporting
Body pos goal status
G8983
Changing & maintaining body position functional
limitation, discharge status, at discharge from
therapy or to end reporting
Body pos D/C status
Carrying, Moving & Handling Objects G-code Set
G8984
Carrying, moving & handling objects functional
limitation, current status, at therapy episode
outset and at reporting intervals
Carry current status
G8985
Carrying, moving & handling objects functional
limitation, projected goal status, at therapy
episode outset, at reporting intervals, and at
discharge or to end reporting
Carry goal status
G8986
Carrying, moving & handling objects functional
limitation, discharge status, at discharge from
therapy or to end reporting
Carry D/C status
Self Care G-code Set
G8987
Self care functional limitation, current status, at
therapy episode outset and at reporting intervals
Self care current status
G8988
Self care functional limitation, projected goal
status, at therapy episode outset, at reporting
intervals, and at discharge or to end reporting
Self care goal status
G8989
Self care functional limitation, discharge status, at
discharge from therapy or to end reporting
Self care D/C status
The following “other PT/OT” functional G-codes are used to report:
• a beneficiary’s functional limitation that is not defined by one of the above four
categories;
• a beneficiary whose therapy services are not intended to treat a functional
limitation;
• or a beneficiary’s functional limitation when an overall, composite or other score
from a functional assessment too is used and it does not clearly represent a
functional limitation defined by one of the above four code sets.
Code
Long Descriptor
Short Descriptor
Other PT/OT Primary G-code Set
G8990
Other physical or occupational therapy primary
functional limitation, current status, at therapy
episode outset and at reporting intervals
Other PT/OT current
status
Code
Long Descriptor
Short Descriptor
G8991
Other physical or occupational therapy primary
functional limitation, projected goal status, at
therapy episode outset, at reporting intervals, and
at discharge or to end reporting
Other PT/OT goal
status
G8992
Other physical or occupational therapy primary
functional limitation, discharge status, at
discharge from therapy or to end reporting
Other PT/OT D/C
status
Other PT/OT Subsequent G-code Set
G8993
Other physical or occupational therapy
subsequent functional limitation, current status, at
therapy episode outset and at reporting intervals
Sub PT/OT current
status
G8994
Other physical or occupational therapy
subsequent functional limitation, projected goal
status, at therapy episode outset, at reporting
intervals, and at discharge or to end reporting
Sub PT/OT goal status
G8995
Other physical or occupational subsequent
functional limitation, discharge from therapy or
end reporting.
Sub PT/OT D/C status
The following G-codes are for functional limitations typically seen in beneficiaries
receiving SLP services. Seven are for specific functional communication measures,
which are modeled after the National Outcomes Measurement System (NOMS), and one
is for any “other” measure not described by one of the other seven.
Code
Long Descriptor
Short Descriptor
Swallowing G-code Set
G8996
Swallowing functional limitation, current status,
at therapy episode outset and at reporting
intervals
Swallow current status
G8997
Swallowing functional limitation, projected goal
status, at therapy episode outset, at reporting
intervals, and at discharge or to end reporting
Swallow goal status
G8998
Swallowing functional limitation, discharge
status, at discharge from therapy or to end
reporting
Swallow D/C status
Motor Speech G-code Set
(Note: These codes are not sequentially numbered)
G8999
Motor speech functional limitation, current status,
at therapy episode outset and at reporting
intervals
Motor speech current
status
G9186
Motor speech functional limitation, projected goal
status at therapy episode outset, at reporting
intervals, and at discharge or to end reporting
Motor speech goal
status
Code
Long Descriptor
Short Descriptor
G9158
Motor speech functional limitation, discharge
status, at discharge from therapy or to end
reporting
Motor speech D/C
status
Spoken Language Comprehension G-code Set
G9159
Spoken language comprehension functional
limitation, current status, at therapy episode
outset and at reporting intervals
Lang comp current
status
G9160
Spoken language comprehension functional
limitation, projected goal status, at therapy
episode outset, at reporting intervals, and at
discharge or to end reporting
Lang comp goal status
G9161
Spoken language comprehension functional
limitation, discharge status, at discharge from
therapy or to end reporting
Lang comp D/C status
Spoken Language Expressive G-code Set
G9162
Spoken language expression functional limitation,
current status, at therapy episode outset and at
reporting intervals
Lang express current
status
G9163
Spoken language expression functional limitation,
projected goal status, at therapy episode outset, at
reporting intervals, and at discharge or to end
reporting
Lang press goal status
G9164
Spoken language expression functional limitation,
discharge status, at discharge from therapy or to
end reporting
Lang express D/C
status
Attention G-code Set
G9165
Attention functional limitation, current status, at
therapy episode outset and at reporting intervals
Atten current status
G9166
Attention functional limitation, projected goal
status, at therapy episode outset, at reporting
intervals, and at discharge or to end reporting
Atten goal status
G9167
Attention functional limitation, discharge status,
at discharge from therapy or to end reporting
Atten D/C status
Memory G-code Set
G9168
Memory functional limitation, current status, at
therapy episode outset and at reporting intervals
Memory current status
G9169
Memory functional limitation, projected goal
status, at therapy episode outset, at reporting
intervals, and at discharge or to end reporting
Memory goal status
G9170
Memory functional limitation, discharge status, at
discharge from therapy or to end reporting
Memory D/C status
Voice G-code Set
G9171
Voice functional limitation, current status, at
therapy episode outset and at reporting intervals
Voice current status
Code
Long Descriptor
Short Descriptor
G9172
Voice functional limitation, projected goal status,
at therapy episode outset, at reporting intervals,
and at discharge or to end reporting
Voice goal status
G9173
Voice functional limitation, discharge status, at
discharge from therapy or to end reporting
Voice D/C status
The following “other SLP” G-code set is used to report:
• on one of the other eight NOMS-defined functional measures not described by the
above code sets; or
• to report an overall, composite or other score from assessment tool that does not
clearly represent one of the above seven categorical SLP functional measures.
Code
Long Descriptor
Short Descriptor
Other Speech Language Pathology G-code Set
G9174
Other speech language pathology functional
limitation, current status, at therapy episode
outset and at reporting intervals
Speech lang current
status
G9175
Other speech language pathology functional
limitation, projected goal status, at therapy
episode outset, at reporting intervals, and at
discharge or to end reporting
Speech lang goal
status
G9176
Other speech language pathology functional
limitation, discharge status, at discharge from
therapy or to end reporting
Speech lang D/C
status
F. Severity/Complexity Modifiers
For each nonpayable functional G-code, one of the modifiers listed below must be used
to report the severity/complexity for that functional limitation.
Modifier
Impairment Limitation Restriction
CH
0 percent impaired, limited or restricted
CI
At least 1 percent but less than 20 percent impaired, limited or restricted
CJ
At least 20 percent but less than 40 percent impaired, limited or restricted
CK
At least 40 percent but less than 60 percent impaired, limited or restricted
CL
At least 60 percent but less than 80 percent impaired, limited or restricted
CM
At least 80 percent but less than 100 percent impaired, limited or restricted
CN
100 percent impaired, limited or restricted
The severity modifiers reflect the beneficiary’s percentage of functional impairment as
determined by the clinician furnishing the therapy services.
G. Required Reporting of Functional G-codes and Severity Modifiers
The functional G-codes and severity modifiers listed above are used in the required
reporting on therapy claims at certain specified points during therapy episodes of care.
Claims containing these functional G-codes must also contain another billable and
separately payable (non-bundled) service. Only one functional limitation shall be
reported at a given time for each related therapy plan of care (POC).
Functional reporting using the G-codes and corresponding severity modifiers is required
reporting on specified therapy claims. Specifically, they are required on claims:
• At the outset of a therapy episode of care (i.e., on the claim for the date of service
(DOS) of the initial therapy service);
• At least once every 10 treatment days, which corresponds with the progress
reporting period;
• When an evaluative procedure, including a re-evaluative one, ( HCPCS/CPT
codes 92521, 92522, 92523, 92524, 92597, 92607, 92608, 92610, 92611, 92612,
92614, 92616, 96105, 96125, 97161, 97162 ,97163, 97164, 97165, 97166, 97167,
97168) is furnished and billed;
• At the time of discharge from the therapy episode of care–(i.e., on the date
services related to the discharge [progress] report are furnished); and
• At the time reporting of a particular functional limitation is ended in cases where
the need for further therapy is necessary.
• At the time reporting is begun for a new or different functional limitation within
the same episode of care (i.e., after the reporting of the prior functional limitation
is ended)
Functional reporting is required on claims throughout the entire episode of care. When
the beneficiary has reached his or her goal or progress has been maximized on the
initially selected functional limitation, but the need for treatment continues, reporting is
required for a second functional limitation using another set of G-codes. In these
situations two or more functional limitations will be reported for a beneficiary during the
therapy episode of care. Thus, reporting on more than one functional limitation may be
required for some beneficiaries but not simultaneously.
When the beneficiary stops coming to therapy prior to discharge, the clinician should
report the functional information on the last claim. If the clinician is unaware that the
beneficiary is not returning for therapy until after the last claim is submitted, the clinician
cannot report the discharge status.
When functional reporting is required on a claim for therapy services, two G-codes will
generally be required.
Two exceptions exist:
1. Therapy services under more than one therapy POC-- Claims may contain more
than two nonpayable functional G-codes when in cases where a beneficiary
receives therapy services under multiple POCs (PT, OT, and/or SLP) from the
same therapy provider.
2. One-Time Therapy Visit-- When a beneficiary is seen and future therapy services
are either not medically indicated or are going to be furnished by another
provider, the clinician reports on the claim for the DOS of the visit, all three G-
codes in the appropriate code set (current status, goal status and discharge status),
along with corresponding severity modifiers.
Each reported functional G-code must also contain the following line of service
information:
• Functional severity modifier
• Therapy modifier indicating the related discipline/POC -- GP, GO or GN -- for
PT, OT, and SLP services, respectively
• Date of the related therapy service
• Nominal charge, e.g., a penny, for institutional claims submitted to the A/B
MACs (A). For professional claims, a zero charge is acceptable for the service
line. If provider billing software requires an amount for professional claims, a
nominal charge, e.g., a penny, may be included.
NOTE: The KX modifier is not required on the claim line for nonpayable G-codes, but
would be required with the procedure code for medically necessary therapy services
furnished once the beneficiary’s annual cap has been reached.
The following example demonstrates how the G-codes and modifiers are used. In this
example, the clinician determines that the beneficiary’s mobility restriction is the most
clinically relevant functional limitation and selects the Mobility G-code set (G8978 –
G8980) to represent the beneficiary’s functional limitation. The clinician also determines
the severity/complexity of the beneficiary’s functional limitation and selects the
appropriate modifier. In this example, the clinician determines that the beneficiary has a
75 percent mobility restriction for which the CL modifier is applicable. The clinician
expects that at the end of therapy the beneficiaries will have only a 15 percent mobility
restriction for which the CI modifier is applicable. When the beneficiary attains the
mobility goal, therapy continues to be medically necessary to address a functional
limitation for which there is no categorical G-code. The clinician reports this using
(G8990 – G8992).
At the outset of therapy-- On the DOS for which the initial evaluative procedure is
furnished or the initial treatment day of a therapy POC, the claim for the service will also
include two G-codes as shown below.
• G8978-CL to report the functional limitation (Mobility with current mobility
limitation of “at least 60 percent but less than 80 percent impaired, limited or
restricted”)
• G8979-CI to report the projected goal for a mobility restriction of “at least 1
percent but less than 20 percent impaired, limited or restricted.”
At the end of each progress reporting period-- On the claim for the DOS when the
services related to the progress report (which must be done at least once each 10
treatment days) are furnished, the clinician will report the same two G-codes but the
modifier for the current status may be different.
• G8978 with the appropriate modifier are reported to show the beneficiary’s
current status as of this DOS. So if the beneficiary has made no progress, this
claim will include G8978-CL. If the beneficiary made progress and now has a
mobility restriction of 65 percent CL would still be the appropriate modifier for
65 percent, and G8978-CL would be reported in this case. If the beneficiary now
has a mobility restriction of 45 percent, G8978-CK would be reported.
• G8979-CI would be reported to show the projected goal. This severity modifier
would not change unless the clinician adjusts the beneficiary’s goal.
This step is repeated as necessary and clinically appropriate, adjusting the current status
modifier used as the beneficiary progresses through therapy.
At the time the beneficiary is discharged from the therapy episode. The final claim for
therapy episode will include two G-codes.
• G8979-CI would be reported to show the projected goal. G8980-CI would be
reported if the beneficiary attained the 15 percent mobility goal. Alternatively, if
the beneficiary’s mobility restriction only reached 25 percent; G8980-CJ would
be reported.
To end reporting of one functional limitation-- As noted above, functional reporting is
required to continue throughout the entire episode of care. Accordingly, when further
therapy is medically necessary after the beneficiary attains the goal for the first reported
functional limitation, the clinician would end reporting of the first functional limitation
by using the same G-codes and modifiers that would be used at the time of discharge.
Using the mobility example, to end reporting of the mobility functional limitation,
G8979-CI and G8980-CI would be reported on the same DOS that coincides with end of
that progress reporting period.
To begin reporting of a second functional limitation. At the time reporting is begun for a
new and different functional limitation, within the same episode of care (i.e., after the
reporting of the prior functional limitation is ended). Reporting on the second functional
limitation, however, is not begun until the DOS of the next treatment day -- which is day
one of the new progress reporting period. When the next functional limitation to be
reported is NOT defined by one of the other three PT/OT categorical codes, the G-code
set (G8990 - G8992) for the “other PT/OT primary” functional limitation is used, rather
than the G-code set for the “other PT/OT subsequent” because it is the first reported
“other PT/OT” functional limitation. This reporting begins on the DOS of the first
treatment day following the mobility “discharge” reporting, which is counted as the
initial service for the “other PT/OT primary” functional limitation and the first treatment
day of the new progress reporting period. In this case, G8990 and G8991, along with the
corresponding modifiers, are reported on the claim for therapy services.
The table below illustrates when reporting is required using this example and what G-
codes would be used.
Example of Required Reporting
Key: Reporting Period (RP)
Begin RP #1 for Mobility
at Episode Outset
End RP#1for Mobility at
Progress Report
Mobility RP #2 Begins
Next Treatment Day
End RP #2 for Mobility
at Progress Report
Mobility RP #3 Begins
Next Treatment Day
D/C or End Reporting for
Mobility
Begin RP #1 for Other
PT/OT Primary
Mobility: Walking & Moving
Around
G8978 – Current Status
X
X
X
G 8979– Goal Status
X
X
X
X
G8980 – Discharge Status
X
Other PT/OT Primary
G8990 – Current Status
X
G8991 – Goal Status
X
G8992 – Discharge Status
No Functional Reporting
Required
X
X
H. Required Tracking and Documentation of Functional G-codes and Severity
Modifiers
The clinician who furnishes the services must not only report the functional information
on the therapy claim, but, he/she must track and document the G-codes and severity
modifiers used for this reporting in the beneficiary’s medical record of therapy services.
For details related to the documentation requirements, refer to, Medicare Benefit Policy
Manual, Pub. 100-02, Chapter 15, section 220.4 - Functional Reporting. For coverage
rules related to MCTRJCA and therapy goals, refer to Pub. 100-02: a) for outpatient
therapy services, see Chapter 15, section 220.1.2 B and b) for instructions specific to PT,
OT, and SLP services in the CORF, see Chapter 12, section 10.