G9320 — Documentation of medical reason(s) for not naming ct studies according to a standardized nomenclature provided (eg, ct studies performed for radiation treatment planning or image-guided radiation treatment delivery)
G9320 is a HCPCS Level II code for documentation of medical reason(s) for not naming ct studies according to a standardized nomenclature provided (eg, ct studies performed for radiation treatment planning or image-guided radiation treatment delivery). It belongs to the Procedures and Professional Services (Temporary) section. It was terminated on December 31, 2015 and is not valid on new claims.
This code has been terminated
CMS terminated G9320 on December 31, 2015. It stays in the file as history — a claim you are auditing from before that date may legitimately carry it — but it must not appear on a new claim. The adjacent codes below are the usual place to look for its replacement.
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.
The CMS record for G9320
- Long descriptor
- Documentation of medical reason(s) for not naming ct studies according to a standardized nomenclature provided (eg, ct studies performed for radiation treatment planning or image-guided radiation treatment delivery)
- Short descriptor
- Medrsn no std nomenclature
- Added
- January 1, 2014
- Terminated
- December 31, 2015
- BETOS
- M5B
- 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.
When CMS retired it.
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 G9320
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G9320 is not quite right, the correct code is very often within a few positions of it.
- G9312Surgical site infection
- G9313Amoxicillin, with or without clavulanate, not prescribed as first line antibiotic at the time of diagnosis for documented reason
- G9314Amoxicillin, with or without clavulanate, not prescribed as first line antibiotic at the time of diagnosis, reason not given
- G9315Amoxicillin, with or without clavulanate, prescribed as a first line antibiotic at the time of diagnosis
- G9316Documentation of patient-specific risk assessment with a risk calculator based on multi-institutional clinical data, the specific risk calculator used, and communication of risk assessment from risk calculator with the patient or family
- G9317Documentation of patient-specific risk assessment with a risk calculator based on multi-institutional clinical data, the specific risk calculator used, and communication of risk assessment from risk calculator with the patient or family not completed
- G9318Imaging study named according to standardized nomenclature
- G9319Imaging study not named according to standardized nomenclature, reason not given
- 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 study
- 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 not given
- 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)terminated
- G9324All necessary data elements not included, reason not giventerminated
- G9325Ct 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 delivery)terminated
- 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 giventerminated
- G9327Ct studies performed reported to a radiation dose index registry that is capable of collecting at a minimum all necessary data elementsterminated
- G9328Dicom 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 treatment delivery)terminated
Questions about G9320
What is HCPCS code G9320?
G9320 is a HCPCS Level II code for documentation of medical reason(s) for not naming ct studies according to a standardized nomenclature provided (eg, ct studies performed for radiation treatment planning or image-guided radiation treatment delivery). It sits in the Procedures and Professional Services (Temporary) section.
Does Medicare cover G9320?
The CMS HCPCS file marks G9320 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.
Is G9320 still valid?
No. G9320 was terminated on December 31, 2015 and should not be used on new claims.