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 2027.
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
These procedures remove gas that has not dissolved in body fluids, using a process outside the body. They involve the circulatory system.
The fourth character is Circulatory. The fifth character, Duration, distinguishes Single from Multiple. The sixth and seventh characters are both No Qualifier.
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, 2026 through September 30, 2027. 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 2027 ICD-10-PCS order file and code tables, effective October 1, 2026 through September 30, 2027.
