Summary & Overview
HCPCS G4019: Oncology/Hematology MIPS Specialty Set
HCPCS Level II code G4019 identifies the Oncology/Hematology MIPS specialty set, a measurement grouping used for specialty-specific quality reporting in oncology and hematology practices. Nationally, this code matters because it links clinicians to performance measurement under federal value-based payment programs and influences quality reporting compliance, performance profiles, and potential adjustments in Medicare payment.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of what the code represents, the clinical and administrative context for its use, and the typical sites of service where it applies. The publication outlines benchmarks and reporting expectations tied to MIPS specialty measures, summarizes policy and regulatory implications for participating clinicians, and provides clinical context relevant to oncology and hematology outpatient care.
This summary serves clinicians, practice managers, and billing professionals seeking a national overview of HCPCS Level II code G4019, how it fits into quality reporting frameworks, and what to expect when aligning oncology/hematology services with MIPS specialty measures. Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.
Billing Code Overview
HCPCS Level II code G4019 denotes the Oncology/hematology MIPS specialty set, a quality measure grouping used to report specialty-specific performance under the Merit-based Incentive Payment System (MIPS). This code represents a services-related classification tied to oncology and hematology clinicians participating in quality reporting programs.
Service Type: Specialty quality reporting / MIPS measure set
Typical Site of Service: Outpatient oncology and hematology clinic or hospital outpatient department
Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.
Clinical & Coding Specifications
Clinical Context
A 62-year-old patient with diagnosed metastatic colorectal adenocarcinoma attends a clinic visit at a hematology/oncology practice for management under the Oncology/Hematology MIPS specialty set (G4019). The clinical workflow begins with a nurse check-in and vitals, then review of current systemic therapy, recent laboratory results (CBC, CMP, tumor markers), and imaging. The oncologist documents disease status, treatment response, toxicity assessment, performance status, and establishes next steps: continue current regimen, modify dose, provide supportive care (antiemetics, growth factors), or refer for palliative care. Quality measure data elements for the MIPS specialty set are captured in the EHR during the visit, including documentation of chemotherapy intent, pain assessment, advance care planning, and survivorship counseling. Claims include the specialty MIPS group code G4019 to indicate reporting participation and may be accompanied by the appropriate surgical, infusion, or evaluation and management CPT codes for the face-to-face encounter or procedures performed during the same encounter.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when work required is substantially greater than typically required, documented with supporting operative or encounter notes. |