XXA Assistance - Physiological Systems ICD-10-PCS
The XXA code range contains 3 ICD-10-PCS codes for Assistance procedures on the physiological systems. 2 of the codes are billable and valid for inpatient claim submission in fiscal year 2026.
Root Operation Definition
Assistance: Taking over a portion of a physiological function by extracorporeal means.
Codes in the XXA Range 3 codes · 2 billable
About the XXA Code Range
The ICD-10-PCS root operation Assistance (code XXA) pertains to procedures involving support of physiological systems using new technology. It represents interventions that aid or enhance normal body functions through advanced medical techniques.
Classified under the New Technology section, Assistance includes procedures such as Circulatory Filtration targeting Blood Pathogens via a Percutaneous Approach (code XXA536A). This code exemplifies using novel methods to help cleanse the bloodstream, demonstrating how new technology assists physiological systems. Documenting this root operation accurately captures the specialized nature of these modern supportive treatments within ICD-10-PCS coding.
Questions About This Page
How many billable codes are in the XXA range?
Of the 3 codes in this range, 2 are billable and valid for inpatient claim submission from October 1, 2025 through September 30, 2026. Table header codes group them but cannot be reported on claims.
What does the XXA range classify?
The range classifies Assistance procedures, taking over a portion of a physiological function by extracorporeal means, performed on the physiological systems. Each code adds the body part, approach, device, and qualifier in characters four through seven, and links to its own reference page.
Related References
Source: CMS FY 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.
