Summary & Overview
CPT 82985: Glycated Protein (Fructosamine) Assay
CPT code 82985 identifies a laboratory assay measuring glycated protein (fructosamine) in serum or plasma to evaluate short-term glycemic control over approximately two to three weeks. This test offers clinicians a complementary measure to hemoglobin A1c for monitoring glucose control in situations where A1c is unreliable or when shorter-term trends are needed. Nationally, the test is relevant for ambulatory and outpatient laboratory practice patterns and for payers managing diabetes care quality and utilization.
Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical context and typical settings for the test, an overview of common billing and coding considerations, and benchmarks and policy updates where available. The publication covers expected sites of service (clinical and hospital outpatient laboratories), typical service classification as a chemistry laboratory assay, and discussion of how the test is used in clinical workflows. Data not available in the input is noted where applicable.
This summary equips clinical managers, laboratory directors, and billing professionals with a clear understanding of what CPT code 82985 represents, why it matters for diabetes management and laboratory services, and what to review when aligning coding, reimbursement, and clinical use nationally.
Billing Code Overview
CPT code 82985 describes a laboratory analysis for glycated protein (fructosamine), typically performed on serum or plasma to assess recent glycemic control over a roughly two- to three-week period. The test quantifies glycated protein levels to provide clinicians with short-term information about a patient’s blood glucose control.
Service Type: Clinical laboratory test (chemistry assay)
Typical Site of Service: Clinical laboratory or hospital outpatient laboratory
Clinical & Coding Specifications
Clinical Context
A 52-year-old patient with type 2 diabetes mellitus presents to an outpatient laboratory after a clinician orders a glycated protein (fructosamine) test to assess intermediate-term glycemic control over the prior 2–3 weeks. The patient had a recent change in diabetes therapy and requires monitoring sooner than an HbA1c would allow. A phlebotomist performs venipuncture to collect a serum or plasma sample; the sample is sent to the clinical laboratory where a technologist or automated analyzer performs the 82985 fructosamine assay. Results are reviewed by the ordering clinician and used to adjust medications or reinforce self-management education. Typical sites of service include outpatient laboratory collection centers, hospital outpatient departments, and clinic-based laboratories. Common clinical workflows include specimen labeling, electronic order entry, sample processing, analysis, and result reporting in the electronic health record for clinician review and follow-up.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when reporting only the professional interpretation component if applicable in complex laboratory networks that separate instrumentation/analysis from interpretation. |