Summary & Overview
CPT 82653: Pancreatic Elastase (Fecal) Test
CPT code 82653 designates a laboratory test that measures pancreatic elastase (EL–1) in a fecal specimen, most commonly by ELISA. Clinically, the test is used to assess exocrine pancreatic function and help identify exocrine pancreatic insufficiency, a condition that can cause malabsorption and progressive nutrient deficiencies. As a targeted diagnostic assay, CPT code 82653 is relevant nationally for gastroenterology, primary care, and clinical laboratory stakeholders who manage patients with chronic pancreatitis, cystic fibrosis, or unexplained steatorrhea.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context and appropriate laboratory settings for the test, a summary of typical payer coverage considerations, and where available, benchmarking and policy-relevant updates affecting laboratory reimbursement and coding practice. The publication highlights what clinicians and coding professionals need to know about the service type, typical site of service, and practical billing considerations tied to CPT code 82653. Data not available in the input will be noted where applicable.
Billing Code Overview
CPT code 82653 describes a laboratory chemistry test that measures pancreatic elastase (EL–1) in a fecal specimen. The assay is typically performed by immunoassay methods such as enzyme-linked immunosorbent assay (ELISA) and aids clinical assessment of exocrine pancreatic function, including evaluation for exocrine pancreatic insufficiency (EPI).
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Service type: Clinical laboratory testing of fecal specimen for pancreatic elastase level
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Typical site of service: Outpatient clinical laboratory or hospital laboratory processing fecal specimens
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Clinical & Coding Specifications
Clinical Context
A 52-year-old patient presents to a gastroenterology clinic with chronic steatorrhea, unintentional weight loss, and intermittent abdominal pain. The clinician suspects exocrine pancreatic insufficiency (EPI) after reviewing the history and prior imaging showing pancreatic atrophy. A stool sample is collected for measurement of pancreatic elastase-1 (EL-1) using an enzyme-linked immunosorbent assay. The specimen is sent to the outpatient clinical laboratory with requisition including indications and relevant ICD-10 diagnosis codes. Laboratory testing is performed in a certified clinical lab; results are reported to the ordering gastroenterologist who interprets the EL-1 level alongside clinical findings, pancreatic imaging, and nutritional assessments to guide management such as pancreatic enzyme replacement therapy or further diagnostic evaluation.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When only the professional interpretation/reading portion of the test is billed separately from the technical lab component. |
59 | Distinct procedural service | When a separate, distinct test or service is performed and needs to be distinguished from other services on the same date. |