G9323 HCPCS Level II code: Documentation of medical reason(s) for not counting previous ct and cardiac nuclear medicine (myocardial perfusion) studies (eg, ct studies performed for…
CMS terminated G9323: its last date of service was Dec 31, 2015. It stays here for looking up older claims; newer services need a current code.
Official description
G9323Documentation of medical reason(s) for not counting previous ct and cardiac nuclear medicine (myocardial perfusion) studies (eg, ct studies performed for radiation treatment planning or image-guided radiation treatment delivery)
Short description: Mdrsn no doc cnt of ct
HCPCS · United States
Medicare details
The indicators CMS publishes with G9323 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
- Specialist - psychiatry
- Added
- Jan 1, 2014
- Terminated after
- Dec 31, 2015
Where G9323 sits
- 1G codesProcedures and professional services
- 2Terminated G9323Documentation of medical reason(s) for not counting previous ct and cardiac nuclear medicine (myocardial perfusion) studies (eg, ct studies performed for radiation treatment planning or image-guided radiation treatment delivery)
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
Is HCPCS code G9323 still valid?
No. CMS terminated G9323; its last date of service was Dec 31, 2015. It is listed for looking up services from before then. Use a current code for newer services.
Does Medicare cover G9323?
CMS lists G9323’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 G9323
All G codesG9317Documentation of patient-specific risk assessment with a risk calculator based on multi-institutional clinical data, the specific risk calculator used, and communication of risk…G9318Imaging study named according to standardized nomenclatureG9319Imaging study not named according to standardized nomenclature, reason not givenG9320Documentation of medical reason(s) for not naming ct studies according to a standardized nomenclature provided (eg, ct studies performed for radiation treatment planning or…G9321Count of previous ct (any type of ct) and cardiac nuclear medicine (myocardial perfusion or infarct avid imaging) studies documented in the 12-month period prior to the current…G9322Count of previous ct and cardiac nuclear medicine (myocardial perfusion or infarct avid imaging) studies not documented in the 12-month period prior to the current study, reason…G9324All necessary data elements not included, reason not givenG9325Ct studies not reported to a radiation dose index registry due to medical reasons (eg, ct studies performed for radiation treatment planning or image-guided radiation treatment…G9326Ct studies performed not reported to a radiation dose index registry that is capable of collecting at a minimum all necessary data elements, reason not givenG9327Ct studies performed reported to a radiation dose index registry that is capable of collecting at a minimum all necessary data elementsG9328Dicom format image data availability not documented in final report due to medical reasons (eg, ct studies performed for radiation treatment planning or image-guided radiation…G9329Dicom format image data available to non-affiliated external healthcare facilities or entities on a secure, media free, reciprocally searchable basis with patient authorization…