G0235 PET Imaging HCPCS Reimbursement & Benchmarks | OpenPayer

Summary & Overview

HCPCS G0235: PET Imaging, Any Site, Not Otherwise Specified

HCPCS Level II code G0235 represents positron emission tomography (PET) imaging for any anatomical site when no more specific PET code applies. PET scans are critical diagnostic tools in oncology, neurology, and cardiology, providing metabolic and functional information that complements anatomical imaging. Nationally, PET imaging informs cancer staging, treatment response assessment, and evaluation of certain neurological and cardiac disorders, making accurate coding important for clinical documentation and claims processing.

Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise breakdown of what G0235 covers, typical settings where the service is delivered, and what to expect in payer coverage patterns. The publication summarizes benchmarks and policy-relevant considerations related to PET imaging reimbursement and coding specificity, highlights clinical contexts where a non-specific PET code is used, and outlines common operational implications for revenue cycle and utilization management.

The report does not provide state-specific guidance; it is written for a national audience and indicates where data is not available in the input.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareG0235HCPCS Level IIPET imagingnuclear medicinediagnostic imagingoutpatient imagingmedical codingradiology billingdiagnostic PET

Billing Code Overview

HCPCS Level II code G0235 denotes PET imaging, any site, not otherwise specified. This service represents a positron emission tomography (PET) scan performed for diagnostic imaging purposes and can apply to any anatomical site when no more specific PET code is appropriate.

Service type: Diagnostic nuclear medicine imaging — PET scan

Typical site of service: Hospital outpatient departments, freestanding imaging centers, and specialized nuclear medicine facilities

Clinical & Coding Specifications

Clinical Context

A 68-year-old patient with a history of metastatic lung cancer is referred for a diagnostic PET imaging study to evaluate suspected progression after new focal bone pain and rising tumor markers. The patient presents to an outpatient nuclear medicine or radiology department or an ambulatory imaging center. The scheduling staff verifies insurance and prior authorization as needed. On arrival, technologists confirm patient identity, review fasting and medication instructions, assess blood glucose for diabetic patients, and administer the radiotracer intravenously. The patient rests during the uptake period then undergoes whole-body or targeted PET acquisition on a PET or PET/CT scanner. A nuclear medicine physician interprets the images and documents the report, including radiopharmaceutical administered, dose, and findings. Billing uses G0235 for PET imaging of a site not otherwise specified, with the technical and/or professional component reported using appropriate modifiers and facility/provider taxonomy codes recorded on the claim. Typical sites of service include outpatient hospital imaging departments, freestanding PET centers, and ambulatory surgical centers equipped for nuclear medicine procedures.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Use when billing the physician interpretation only for the PET study.

HCPCS G9992: Palliative Care Services During Measurement Period

HCPCS-G8985-CARRYING-MOVING-HANDLING-OBJECTS-FUNCTIONAL-STATUS

HCPCS G8985: Carrying, Moving and Handling Objects, Projected Goal Status

HCPCS-G6016-COMPENSATOR-BEAM-MODULATION-INVERSE-PLANNED-THERAPY

HCPCS G6016: Compensator-Based Beam Modulation, Inverse-Planned Radiotherapy

HCPCS-G8963-CARDIAC-STRESS-IMAGING-POST-PCI-SURVEILLANCE

HCPCS G8963: Cardiac Stress Imaging for Post-PCI Surveillance

HCPCS-G0137-INTENSIVE-OUTPATIENT-MENTAL-HEALTH-WEEKLY-BUNDLE

HCPCS G0137: Intensive Outpatient Behavioral Health Weekly Bundle

HCPCS-G8933-SUICIDE-RISK-NOT-ASSESSED-INITIAL-EVALUATION

HCPCS G8933: Suicide Risk Not Assessed at Initial Evaluation

HCPCS-G9633-NO-URETER-INJURY-WITHIN-30-DAYS-POST-SURGERY

HCPCS G9633: No Ureter Injury Identified Within 30 Days Post-Surgery

HCPCS-G2067-METHADONE-WEEKLY-MEDICATION-ASSISTED-TREATMENT-BUNDLE

HCPCS G2067: Methadone Medication Assisted Treatment Weekly Bundle

HCPCS-G8476-BLOOD-PRESSURE-CONTROLLED-SYSTOLIC-UNDER-140-DIASTOLIC-UNDER-90

HCPCS G8476: Blood Pressure Controlled, <140/<90

HCPCS-G8869-HEPATITIS-B-IMMUNITY-ANTI-TNF-INITIATION

HCPCS G8869: Hepatitis B Immunity Documented for Anti-TNF Initiation

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Taxonomy Code	Specialty	Notes
`2085R0201X`	Nuclear Medicine Physician	Interprets PET studies and documents the diagnostic report.
`207RH0000X`	Diagnostic Radiologist	May interpret PET or PET/CT studies; often reports fused studies.
`163W00000X`	Radiology Technologist	Performs image acquisition and radiotracer administration under supervision.
`367500000X`	Oncology	Referring specialty ordering PET imaging for cancer staging or restaging.
`333600000X`	Internal Medicine	Referring or co-managing clinicians who order PET for evaluation of systemic disease.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`C34.90`	Malignant neoplasm of unspecified part of unspecified bronchus or lung	PET is commonly used for staging, restaging, and detecting metastatic disease in lung cancer.
`C79.51`	Secondary malignant neoplasm of bone	PET imaging identifies osseous metastatic lesions contributing to pain or rising tumor markers.
`C50.919`	Malignant neoplasm of unspecified site of unspecified female breast	PET may be used for systemic staging or evaluation of suspected recurrence.
`M54.5`	Low back pain	PET is occasionally used to evaluate metabolic activity of lesions when metastatic disease is suspected as a cause of pain.
`R91.8`	Other nonspecific abnormal finding of lung field	PET helps characterize indeterminate pulmonary nodules identified on CT or X-ray.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`78815`	Positron emission tomography (PET) multiple studies, concurrent; for tumor imaging, complete radiopharmaceutical localization	Commonly billed when PET imaging is performed for oncologic whole-body assessment; may be used instead of or in conjunction with `G0235` depending on payer rules.
`78816`	PET imaging, limited area; for tumor imaging	Used for regional or limited PET studies when a full whole-body study is not required; may be performed before or after `G0235` if multiple sites are evaluated.
`78811`	Radiopharmaceutical localization of tumor imaging (PET) with single area	Applicable when a single-site PET study is performed; supports clinical workflow for targeted imaging.
`77336`	Radiation treatment devices and/or accessories (planning) — Data not directly related to PET	Not typically billed with PET but included here for radiation oncology planning workflows when PET informs therapy.
`96413`	Chemotherapy administration, IV infusion (single agent)	Not an imaging code but commonly present in the same episode of care for oncology patients who undergo PET for response assessment.

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