G9148 — National committee for quality assurance - level 1 medical home
G9148 is a HCPCS Level II code for national committee for quality assurance - level 1 medical home. It belongs to the Procedures and Professional Services (Temporary) section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Physician fee schedule statusR
Restricted coverage. Special coverage instructions apply, and if covered the service is contractor-priced.
Global period: XXX
Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.
Medically Unlikely Edits — units per day
The most units of G9148 Medicare will pay on one date of service. Bill more on a single line and it is denied. The limit is not the same in every setting, so the row that matters is the one matching the claim you are building.
- practitioner
- 1 unit MAI 3 — Date of Service Edit: Clinical · Clinical: CMS Workgroup
- outpatient
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
The adjudication indicator decides whether exceeding the limit is worth appealing at all: MAI 1 is a line edit you can support with documentation, MAI 3 is a date-of-service edit that is also appealable, and MAI 2 is absolute — no documentation overrides it. CMS MUE 2026Q3.
The CMS record for G9148
- Long descriptor
- National committee for quality assurance - level 1 medical home
- Short descriptor
- Medical home level 1
- Added
- July 1, 2011
- BETOS
- Z2
- Pricing indicator
- 00 — Not priced by Part B
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to G9148
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G9148 is not quite right, the correct code is very often within a few positions of it.
- G9135Oncology; disease status; non-hodgkin's lymphoma, any cellular classification; stage iii, iv, not relapsed, not refractory (for use in a medicare-approved demonstration project)
- G9136Oncology; disease status; non-hodgkin's lymphoma, transformed from original cellular diagnosis to a second cellular classification (for use in a medicare-approved demonstration project)
- G9137Oncology; disease status; non-hodgkin's lymphoma, any cellular classification; relapsed/refractory (for use in a medicare-approved demonstration project)
- G9138Oncology; disease status; non-hodgkin's lymphoma, any cellular classification; diagnostic evaluation, stage not determined, evaluation of possible relapse or non-response to therapy, or not listed (for use in a medicare-approved demonstration project)
- G9139Oncology; disease status; chronic myelogenous leukemia, limited to philadelphia chromosome positive and/or bcr-abl positive; extent of disease unknown, staging in progress, not listed (for use in a medicare-approved demonstration project)
- G9140Frontier extended stay clinic demonstration; for a patient stay in a clinic approved for the cms demonstration project; the following measures should be present: the stay must be equal to or greater than 4 hours; weather or other conditions must prevent transfer or the case falls into a category of monitoring and observation cases that are permitted by the rules of the demonstration; there is a maximum frontier extended stay clinic (fesc) visit of 48 hours, except in the case when weather or other conditions prevent transfer; payment is made on each period up to 4 hours, after the first 4 hours
- G9143Warfarin responsiveness testing by genetic technique using any method, any number of specimen(s)
- G9147Outpatient intravenous insulin treatment (oivit) either pulsatile or continuous, by any means, guided by the results of measurements for: respiratory quotient; and/or, urine urea nitrogen (uun); and/or, arterial, venous or capillary glucose; and/or potassium concentration
- G9149National committee for quality assurance - level 2 medical home
- G9150National committee for quality assurance - level 3 medical home
- G9151Mapcp demonstration - state provided services
- G9152Mapcp demonstration - community health teams
- G9153Mapcp demonstration - physician incentive pool
- G9156Evaluation for wheelchair requiring face to face visit with physician
- G9157Transesophageal doppler measurement of cardiac output (including probe placement, image acquisition, and interpretation per course of treatment) for monitoring purposes
- G9158Motor speech functional limitation, discharge status, at discharge from therapy or to end reportingterminated
Questions about G9148
What is HCPCS code G9148?
G9148 is a HCPCS Level II code for national committee for quality assurance - level 1 medical home. It sits in the Procedures and Professional Services (Temporary) section.
Does Medicare cover G9148?
The CMS HCPCS file marks G9148 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
How is G9148 paid under the physician fee schedule?
G9148 carries PFS status code R. Restricted coverage. Special coverage instructions apply, and if covered the service is contractor-priced.