Summary & Overview
CPT 84583: Urobilinogen Measurement in Urine
CPT code 84583 denotes a laboratory assay that estimates urobilinogen concentration in urine specimens. This test is clinically relevant for assessing hepatic function and hemolysis and is commonly ordered in diagnostic panels for jaundice, liver disease monitoring, and differential diagnosis of anemia. As a standardized CPT code, 84583 facilitates national billing, coding consistency, and claims processing for clinical laboratories and hospital labs.
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, typical sites of service, and standard coding practice for 84583, along with benchmarking insights on payer coverage patterns and reimbursement considerations where available. The publication summarizes common modifiers and administrative considerations relevant to laboratory billing, highlights potential documentation touchpoints, and outlines the scope of services associated with urine urobilinogen testing.
The article is intended to inform coding professionals, lab managers, and policy analysts about the role of CPT code 84583 in routine and diagnostic laboratory workflows, payer interactions, and national coding practice. Data not available in the input will be identified as such in the corresponding sections.
Billing Code Overview
CPT code 84583 describes a laboratory procedure in which a lab analyst estimates the amount of urobilinogen in a patient's urine. This test is a urine biochemical assay used to evaluate liver function and hemolytic processes by measuring urobilinogen levels produced from bilirubin metabolism.
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Service type: Urine biochemical assay
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Typical site of service: Clinical laboratory or hospital laboratory setting
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult presenting to an ambulatory clinic or outpatient laboratory with symptoms prompting evaluation of hepatobiliary function or hemolysis, such as jaundice, dark urine, pale stools, fatigue, right upper quadrant discomfort, or suspected liver disease. A clinician orders a urinalysis that includes urobilinogen testing to assess bilirubin metabolism and enterohepatic circulation. The patient provides a urine sample which is processed by laboratory personnel: a technologist or lab analyst performs a qualitative or semi-quantitative urobilinogen test using reagent strips or a bench assay. Results are documented in the laboratory information system and reported to the ordering provider. Typical sites of service include outpatient physician offices, hospital outpatient laboratories, community laboratories, and urgent care centers where routine urine testing is available.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Unspecified | Rarely used; placeholder when no other modifier applies and payer allows unspecified modifier |
11 | Professional component | Use when reporting only the professional component of a test that has separate technical and professional components |