G9140 HCPCS Level II Code: Frontier extended stay demo
Medicare Coverage & Payment
- CMS short descriptor: Frontier extended stay demo
- Medicare coverage: Carrier judgment (CMS coverage code C)
- Payment category: Service not separately priced (pricing indicator 00)
- BETOS: Z2 — Undefined codes
- Last CMS action effective: October 1, 2007
Source: CMS HCPCS Level II release. Coverage codes indicate how Medicare treats the code, not whether a specific claim will be paid; payer policy and documentation still govern.
Contextual Map
Every relationship of G9140 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Nearest codes (40)
- G9114 — Oncology; disease status; ovarian cancer, limited to epithelial cancer; pathologic stage ia-b (grade 2-3); or stage ic (all grades); or stage ii; without evidence of disease progression, recurrence, or metastases (for use in a medicare-approved demonstration project)[Sibling]— CMS HCPCS Level II code set
- G9115 — Oncology; disease status; ovarian cancer, limited to epithelial cancer; pathologic stage iii-iv; without evidence of progression, recurrence, or metastases (for use in a medicare-approved demonstration project)[Sibling]— CMS HCPCS Level II code set
- G9116 — Oncology; disease status; ovarian cancer, limited to epithelial cancer; evidence of disease progression, or recurrence, and/or platinum resistance (for use in a medicare-approved demonstration project)[Sibling]— CMS HCPCS Level II code set
- G9117 — Oncology; disease status; ovarian cancer, limited to epithelial cancer; extent of disease unknown, staging in progress, or not listed (for use in a medicare-approved demonstration project)[Sibling]— CMS HCPCS Level II code set
- G9123 — Oncology; disease status; chronic myelogenous leukemia, limited to philadelphia chromosome positive and/or bcr-abl positive; chronic phase not in hematologic, cytogenetic, or molecular remission (for use in a medicare-approved demonstration project)[Sibling]— CMS HCPCS Level II code set
- G9124 — Oncology; disease status; chronic myelogenous leukemia, limited to philadelphia chromosome positive and/or bcr-abl positive; accelerated phase not in hematologic cytogenetic, or molecular remission (for use in a medicare-approved demonstration project)[Sibling]— CMS HCPCS Level II code set
- G9125 — Oncology; disease status; chronic myelogenous leukemia, limited to philadelphia chromosome positive and/or bcr-abl positive; blast phase not in hematologic, cytogenetic, or molecular remission (for use in a medicare-approved demonstration project)[Sibling]— CMS HCPCS Level II code set
- G9126 — Oncology; disease status; chronic myelogenous leukemia, limited to philadelphia chromosome positive and/or bcr-abl positive; in hematologic, cytogenetic, or molecular remission (for use in a medicare-approved demonstration project)[Sibling]— CMS HCPCS Level II code set
- and 32 more
Change history
- October 1, 2007 — Added to the code set [Change history]— CMS release files (code change ledger)
Sources for this page
Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.
- Code, descriptors, coverage and pricing attributes Official source data
- CMS HCPCS Alpha-Numeric (ANWEB) release — July 2026 quarterly update Release, file and checksum · Publisher’s page
- Change history and date-of-service validity Official source data
- CMS HCPCS quarterly update files, ingested into the change ledger Release, file and checksum · Publisher’s page
- Comparisons, relationships and the contextual map MedCoder structured relationship
- Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
- Summary and FAQ answers MedCoder explanation
- Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.
Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates
Change history
- October 1, 2007Added to the code setFrontier 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
Nearest Codes in This Family
Official HCPCS Level II classifications closest to G9140 in its code family, with their registry titles.
- G9135 — Oncology; disease status; non-hodgkin's lymphoma, any cellular classification; stage iii, iv, not relapsed, not refractory (for use in a medicare-approved demonstration project)
- G9136 — Oncology; disease status; non-hodgkin's lymphoma, transformed from original cellular diagnosis to a second cellular classification (for use in a medicare-approved demonstration project)
- G9137 — Oncology; disease status; non-hodgkin's lymphoma, any cellular classification; relapsed/refractory (for use in a medicare-approved demonstration project)
- G9138 — Oncology; 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…
- G9139 — Oncology; 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…
- G9143 — Warfarin responsiveness testing by genetic technique using any method, any number of specimen(s)
- G9147 — Outpatient 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);…
- G9148 — National committee for quality assurance - level 1 medical home
- G9149 — National committee for quality assurance - level 2 medical home
- G9150 — National committee for quality assurance - level 3 medical home