Summary & Overview
CPT 36600: Arterial Blood Sampling for Diagnostic Testing
CPT code 36600 represents an arterial puncture used to obtain arterial blood for laboratory testing to diagnose disease or monitor physiologic status. This brief covers the clinical purpose of the procedure, typical settings where it is performed, and payer coverage context relevant to national billing and compliance considerations. Nationally, arterial blood sampling is a common diagnostic procedure in acute care and outpatient settings, with implications for coding accuracy, documentation, and appropriate site-of-service reporting.
Key payers referenced in the analysis include Aetna, Blue Cross Blue Shield, Cigna, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the service, a summary of payer considerations when present, and an outline of the typical service line and settings. The content highlights common modifiers associated with procedural billing when available and notes where input data is incomplete.
What to expect: an executive overview of the procedure's clinical role, how it is billed as CPT code 36600, and the primary payers that commonly adjudicate claims for arterial blood sampling. Data not provided in the input (such as associated taxonomies, ICD-10 diagnoses, and related codes) is identified as unavailable.
Billing Code Overview
CPT code 36600 describes an arterial puncture procedure in which the provider punctures an artery and withdraws blood to send to the laboratory for testing. The service is performed to diagnose a disease or condition by obtaining arterial blood for analysis.
Service type: Diagnostic procedure — arterial blood sampling
Typical site of service: Hospital inpatient or outpatient settings, emergency department, ambulatory clinic, or other acute care sites where arterial blood gas or other arterial blood testing is required.
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A 62-year-old male with a history of chronic obstructive pulmonary disease (COPD) and congestive heart failure presents to the emergency department with increasing shortness of breath and hypoxia. The treating physician orders an arterial blood gas (ABG) to assess oxygenation, ventilation, and acid–base status. The respiratory therapist or physician performs an arterial puncture, typically at the radial artery, obtains an arterial blood sample, and sends it to the laboratory for analysis of pH, PaO2, PaCO2, HCO3-, and oxygen saturation. Results guide immediate decisions about oxygen delivery, ventilator settings, and acid–base management. Typical site of service is the emergency department, hospital inpatient unit, or intensive care unit; the service type is a diagnostic arterial blood draw for laboratory testing (CPT 36600).
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management (E/M) service by the same physician on the same day of the procedure | Use when an E/M visit is performed and documented separately from the arterial puncture on the same date. |
| 26 | Professional component | Use when reporting only the professional component of a diagnostic service if applicable in bundled reporting contexts.