G9431 HCPCS Level II code: Pathology report does not include the pt category, thickness, ulceration and mitotic rate, peripheral and deep margin status and presence or absence of…
G9431 is the HCPCS code for “Pathology 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” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
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
Short description: Patho rpt no pt ctg
HCPCS · United States
Medicare details
The indicators CMS publishes with G9431 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Medicare pricing
- Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)
- Type of service
- Medical care
- BETOS category
- Undefined codes
- Added
- Jan 1, 2015
Where G9431 sits
- 1G codesProcedures and professional services
- 2Active code 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
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code G9431 mean?
G9431 is the HCPCS code for “Pathology 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” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover G9431?
CMS lists G9431’s Medicare coverage as “Carrier judgment” and its pricing as “Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside G9431
All G codesG9425Primary 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…G9426Improvement in median time from ed arrival to initial ed oral or parenteral pain medication administration performed for ed admitted patientsG9427Improvement in median time from ed arrival to initial ed oral or parenteral pain medication administration not performed for ed admitted patientsG9428Pathology report includes the pt category, thickness, ulceration and mitotic rate, peripheral and deep margin status and presence or absence of microsatellitosis for invasive…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…G9430Specimen site other than anatomic cutaneous locationG9432Asthma well-controlled based on the act, c-act, acq, or ataq score and results documentedG9433Death, permanent nursing home resident or receiving hospice or palliative care any time during the measurement periodG9434Asthma not well-controlled based on the act, c-act, acq, or ataq score, or specified asthma control tool not used, reason not givenG9435Aspirin prescribed at dischargeG9436Aspirin not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)G9437Aspirin not prescribed at discharge