G9424 — Specimen site other than anatomic location of lung, or classified as nsclc-nos
G9424 is a HCPCS Level II code for specimen site other than anatomic location of lung, or classified as nsclc-nos. 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 statusM
Measurement code. Used for reporting purposes only; never paid.
Global period: XXX
Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.
The CMS record for G9424
- Long descriptor
- Specimen site other than anatomic location of lung, or classified as nsclc-nos
- Short descriptor
- Site no lung or lung cx
- Added
- January 1, 2015
- 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 G9424
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G9424 is not quite right, the correct code is very often within a few positions of it.
- G9416Patient had one tetanus, diphtheria toxoids and acellular pertussis vaccine (tdap) on or between the patient's 10th and 13th birthdays
- G9417Patient did not have one tetanus, diphtheria toxoids and acellular pertussis vaccine (tdap) on or between the patient's 10th and 13th birthdays
- G9418Primary non-small cell lung cancer lung biopsy and cytology specimen report documents classification into specific histologic type following iaslc guidance or classified as nsclc-nos with an explanation
- G9419Documentation of medical reason(s) for not including the histological type or nsclc-nos classification with an explanation (e.g. specimen insufficient or non-diagnostic, specimen does not contain cancer, or other documented medical reasons)
- G9420Specimen site other than anatomic location of lung or is not classified as primary non-small cell lung cancer
- G9421Primary non-small cell lung cancer lung biopsy and cytology specimen report does not document classification into specific histologic type or histologic type does not follow iaslc guidance or is classified as nsclc-nos but without an explanation
- G9422Primary lung carcinoma resection report documents pt category, pn category and for non-small cell lung cancer, histologic type (e.g., squamous cell carcinoma, adenocarcinoma and not nsclc-nos)
- G9423Documentation of medical reason for not including pt category, pn category and histologic type [for patient with appropriate exclusion criteria (e.g., metastatic disease, benign tumors, malignant tumors other than carcinomas, inadequate surgical specimens)]
- G9425Primary lung carcinoma resection report does not document pt category, pn category and for non-small cell lung cancer, histologic type (e.g., squamous cell carcinoma, adenocarcinoma)
- G9426Improvement in median time from ed arrival to initial ed oral or parenteral pain medication administration performed for ed admitted patients
- G9427Improvement in median time from ed arrival to initial ed oral or parenteral pain medication administration not performed for ed admitted patients
- G9428Pathology report includes the pt category, thickness, ulceration and mitotic rate, peripheral and deep margin status and presence or absence of microsatellitosis for invasive tumors
- G9429Documentation of medical reason(s) for not including pt category, thickness, ulceration and mitotic rate, peripheral and deep margin status and presence or absence of microsatellitosis for invasive tumors (e.g., negative skin biopsies, insufficient tissue, or other documented medical reasons)
- G9430Specimen site other than anatomic cutaneous location
- G9431Pathology report does not include the pt category, thickness, ulceration and mitotic rate, peripheral and deep margin status and presence or absence of microsatellitosis for invasive tumors
- G9432Asthma well-controlled based on the act, c-act, acq, or ataq score and results documented
Questions about G9424
What is HCPCS code G9424?
G9424 is a HCPCS Level II code for specimen site other than anatomic location of lung, or classified as nsclc-nos. It sits in the Procedures and Professional Services (Temporary) section.
Does Medicare cover G9424?
The CMS HCPCS file marks G9424 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 G9424 paid under the physician fee schedule?
G9424 carries PFS status code M. Measurement code. Used for reporting purposes only; never paid.