6A1 Decompression - Physiological Systems ICD-10-PCS
The 6A1 code range contains 3 ICD-10-PCS codes for Decompression procedures on the physiological systems. 2 of the codes are billable and valid for inpatient claim submission in fiscal year 2026.
Root Operation Definition
Decompression: Extracorporeal elimination of undissolved gas from body fluids.
Codes in the 6A1 Range 3 codes · 2 billable
About the 6A1 Code Range
The ICD-10-PCS root operation Decompression (code 6A1) refers to the reduction or relief of pressure in a physiological system. It is classified under Extracorporeal or Systemic Therapies, focusing on therapies that affect body systems rather than specific anatomical sites.
This root operation involves techniques to alleviate pressure within a system, which is crucial in managing conditions caused by pressure buildup. For example, the codes 6A150ZZ and 6A151ZZ describe decompression of the Circulatory system, either targeting a Single area or Multiple areas, respectively. These codes capture interventions aimed at improving blood flow or relieving vascular pressure through extracorporeal methods. Understanding and applying ICD-10-PCS decompression codes in the context of systemic therapies helps ensure accurate reporting of treatments designed to restore normal physiological function by reducing harmful pressure within body systems.
Questions About This Page
How many billable codes are in the 6A1 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 6A1 range classify?
The range classifies Decompression procedures, extracorporeal elimination of undissolved gas from body fluids, 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.
