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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• G9404

  Patient did not receive follow-up within 30 days after discharge

• G9405

  Patient received follow-up within 7 days after discharge

• G9406

  Clinician documented reason patient was not able to complete 7 day follow-up from acute inpatient setting discharge (i.e patient death prior to follow-up visit, patient non-compliance for visit follow-up)

• G9407

  Patient did not receive follow-up within 7 days after discharge

• G9408

  Patients with cardiac tamponade and/or pericardiocentesis occurring within 30 days

• G9409

  Patients without cardiac tamponade and/or pericardiocentesis occurring within 30 days

• G9410

  Patient admitted within 180 days, status post cied implantation, replacement, or revision with an infection requiring device removal or surgical revision

• G9411

  Patient not admitted within 180 days, status post cied implantation, replacement, or revision with an infection requiring device removal or surgical revision

• G9412

  Patient admitted within 180 days, status post cied implantation, replacement, or revision with an infection requiring device removal or surgical revision

• G9413

  Patient not admitted within 180 days, status post cied implantation, replacement, or revision with an infection requiring device removal or surgical revision

• G9414

  Patient had one dose of meningococcal vaccine (serogroups a, c, w, y or a, c, w, y, b) on or between the patient's 10th and 13th birthdays

• G9415

  Patient did not have one dose of meningococcal vaccine (serogroups a, c, w, y or a, c, w, y, b), on or between the patient's 10th and 13th birthdays

• G9416

  Patient had one tetanus, diphtheria toxoids and acellular pertussis vaccine (tdap) on or between the patient's 10th and 13th birthdays

• G9417

  Patient did not have one tetanus, diphtheria toxoids and acellular pertussis vaccine (tdap) on or between the patient's 10th and 13th birthdays

• G9418

  Primary 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

• G9419

  Documentation 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)

• G9420

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

• G9421

  Primary 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

• G9422

  Primary 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)

• G9423

  Documentation 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)]

• G9424

  Specimen site other than anatomic location of lung, or classified as nsclc-nos

• G9425

  Primary 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)

• G9426

  Improvement in median time from ed arrival to initial ed oral or parenteral pain medication administration performed for ed admitted patients

• G9427

  Improvement in median time from ed arrival to initial ed oral or parenteral pain medication administration not performed for ed admitted patients

• G9428

  Pathology report includes the pt category, thickness, ulceration and mitotic rate, peripheral and deep margin status and presence or absence of microsatellitosis for invasive tumors

• G9429

  Documentation 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)

• G9430

  Specimen site other than anatomic cutaneous location

• G9431

  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

• G9432

  Asthma well-controlled based on the act, c-act, acq, or ataq score and results documented

• G9433

  Death, permanent nursing home resident or receiving hospice or palliative care any time during the measurement period

• G9434

  Asthma not well-controlled based on the act, c-act, acq, or ataq score, or specified asthma control tool not used, reason not given

• G9435

  Aspirin prescribed at discharge

• G9436

  Aspirin not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)

• G9437

  Aspirin not prescribed at discharge

• G9438

  P2y inhibitor prescribed at discharge

• G9439

  P2y inhibitor not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)

• G9440

  P2y inhibitor not prescribed at discharge

• G9441

  Statin prescribed at discharge

• G9442

  Statin not prescribed for documented reasons (e.g., allergy, medical intolerance)

• G9443

  Statin not prescribed at discharge

• G9448

  Patients who were born in the years 1945 to 1965

• G9449

  History of receiving blood transfusions prior to 1992

• G9450

  History of injection drug use

• G9451

  Patient received one-time screening for hcv infection

• G9452

  Documentation of medical reason(s) for not receiving hcv antibody test due to limited life expectancy

• G9453

  Documentation of patient reason(s) for not receiving one-time screening for hcv infection (e.g., patient declined, other patient reasons)

• G9454

  One-time screening for hcv infection not received within 12-month reporting period and no documentation of prior screening for hcv infection, reason not given

• G9455

  Patient underwent abdominal imaging with ultrasound, contrast enhanced ct or contrast mri for hcc

• G9456

  Documentation of medical or patient reason(s) for not ordering or performing screening for hcc. medical reason: comorbid medical conditions with expected survival < 5 years, hepatic decompensation and not a candidate for liver transplantation, or other medical reasons; patient reasons: patient declined or other patient reasons (e.g., cost of tests, time related to accessing testing equipment)

• G9457

  Patient did not undergo abdominal imaging and did not have a documented reason for not undergoing abdominal imaging in the submission period

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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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