Temporary G codes are assigned to services and procedures that are under review before being included in the CPT coding system. Payment for these services is under the jurisdiction of the local carriers.

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• G9285

  Specimen site other than anatomic location of lung or is not classified as non small cell lung cancer

• G9286

  Antibiotic regimen prescribed within 10 days after onset of symptoms

• G9287

  Antibiotic regimen not prescribed within 10 days after onset of symptoms

• G9288

  Documentation of medical reason(s) for not reporting the histological type or nsclc-nos classification with an explanation (e.g., a solitary fibrous tumor in a person with a history of non-small cell carcinoma or other documented medical reasons)

• G9289

  Non small cell lung cancer biopsy and cytology specimen report documents classification into specific histologic type or classified as nsclc-nos with an explanation

• G9290

  Non small cell lung cancer biopsy and cytology specimen report does not document classification into specific histologic type or classified as nsclc-nos with an explanation

• G9291

  Specimen site other than anatomic location of lung, is not classified as non small cell lung cancer or classified as nsclc-nos

• G9292

  Documentation of medical reason(s) for not reporting pt category and a statement on thickness and ulceration and for pt1, mitotic rate (e.g., negative skin biopsies in a patient with a history of melanoma or other documented medical reasons)

• G9293

  Pathology report does not include the pt category and a statement on thickness and ulceration and for pt1, mitotic rate

• G9294

  Pathology report includes the pt category and a statement on thickness and ulceration and for pt1, mitotic rate

• G9295

  Specimen site other than anatomic cutaneous location

• G9296

  Patients with documented shared decision-making including discussion of conservative (non-surgical) therapy (e.g., nsaids, analgesics, weight loss, exercise, injections) prior to the procedure

• G9297

  Shared decision-making including discussion of conservative (non-surgical) therapy (e.g., nsaids, analgesics, weight loss, exercise, injections) prior to the procedure, not documented, reason not given

• G9298

  Patients who are evaluated for venous thromboembolic and cardiovascular risk factors within 30 days prior to the procedure (e.g., history of dvt, pe, mi, arrhythmia and stroke)

• G9299

  Patients who are not evaluated for venous thromboembolic and cardiovascular risk factors within 30 days prior to the procedure (e.g., history of dvt, pe, mi, arrhythmia and stroke, reason not given)

• G9300

  Documentation of medical reason(s) for not completely infusing the prophylactic antibiotic prior to the inflation of the proximal tourniquet (e.g., a tourniquet was not used)

• G9301

  Patients who had the prophylactic antibiotic completely infused prior to the inflation of the proximal tourniquet

• G9302

  Prophylactic antibiotic not completely infused prior to the inflation of the proximal tourniquet, reason not given

• G9303

  Operative report does not identify the prosthetic implant specifications including the prosthetic implant manufacturer, the brand name of the prosthetic implant and the size of each prosthetic implant, reason not given

• G9304

  Operative report identifies the prosthetic implant specifications including the prosthetic implant manufacturer, the brand name of the prosthetic implant and the size of each prosthetic implant

• G9305

  Intervention for presence of leak of endoluminal contents through an anastomosis not required

• G9306

  Intervention for presence of leak of endoluminal contents through an anastomosis required

• G9307

  No return to the operating room for a surgical procedure, for complications of the principal operative procedure, within 30 days of the principal operative procedure

• G9308

  Unplanned return to the operating room for a surgical procedure, for complications of the principal operative procedure, within 30 days of the principal operative procedure

• G9309

  No unplanned hospital readmission within 30 days of principal procedure

• G9310

  Unplanned hospital readmission within 30 days of principal procedure

• G9311

  No surgical site infection

• G9312

  Surgical site infection

• G9313

  Amoxicillin, with or without clavulanate, not prescribed as first line antibiotic at the time of diagnosis for documented reason

• G9314

  Amoxicillin, with or without clavulanate, not prescribed as first line antibiotic at the time of diagnosis, reason not given

• G9315

  Amoxicillin, with or without clavulanate, prescribed as a first line antibiotic at the time of diagnosis

• G9316

  Documentation 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

• G9317

  Documentation 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

• G9318

  Imaging study named according to standardized nomenclature

• G9319

  Imaging study not named according to standardized nomenclature, reason not given

• 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)

• G9321

  Count 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

• G9322

  Count 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

• G9323

  Documentation 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)

• G9324

  All necessary data elements not included, reason not given

• G9325

  Ct 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)

• G9326

  Ct studies performed not reported to a radiation dose index registry that is capable of collecting at a minimum all necessary data elements, reason not given

• G9327

  Ct studies performed reported to a radiation dose index registry that is capable of collecting at a minimum all necessary data elements

• G9328

  Dicom 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)

• G9329

  Dicom format image data available to non-affiliated external healthcare facilities or entities on a secure, media free, reciprocally searchable basis with patient authorization for at least a 12-month period after the study not documented in final report, reason not given

• G9340

  Final report documented that dicom format image data available to non-affiliated external healthcare facilities or entities on a secure, media free, reciprocally searchable basis with patient authorization for at least a 12-month period after the study

• G9341

  Search conducted for prior patient ct studies completed at non-affiliated external healthcare facilities or entities within the past 12-months and are available through a secure, authorized, media-free, shared archive prior to an imaging study being performed

• G9342

  Search not conducted prior to an imaging study being performed for prior patient ct studies completed at non-affiliated external healthcare facilities or entities within the past 12-months and are available through a secure, authorized, media-free, shared archive, reason not given

• G9343

  Due to medical reasons, search not conducted for dicom format images for prior patient ct imaging studies completed at non-affiliated external healthcare facilities or entities within the past 12 months that are available through a secure, authorized, media-free, shared archive (e.g., ct studies performed for radiation treatment planning or image-guided radiation treatment delivery)

• G9344

  Due to system reasons search not conducted for dicom format images for prior patient ct imaging studies completed at non-affiliated external healthcare facilities or entities within the past 12 months that are available through a secure, authorized, media-free, shared archive (e.g., non-affiliated external healthcare facilities or entities does not have archival abilities through a shared archival system)

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HCPCS Level II codes and descriptors are approved and maintained jointly by the alpha-numeric editorial panel (consisting of CMS, the Health Insurance Association of America, and the Blue Cross and Blue Shield Association). — Updated 6/5/2026

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