5A05121Extracorporeal Hyperbaric Oxygenation, Intermittent
- Billable / Specific Code
5A05121 is a billable ICD-10-PCS procedure code for Extracorporeal Hyperbaric Oxygenation, Intermittent. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The root operation Assistance involves taking over a portion of a physiological function by extracorporeal means.
Code Identity
PCS Table Breakdown
Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.
| Position | Designation | Value | Meaning |
|---|---|---|---|
| 1 | Section | 5 | Extracorporeal or Systemic Assistance and Performance |
| 2 | Body System | A | Physiological Systems |
| 3 | Operation | 0 | Assistance |
| 4 | BodySystem | 5 | Circulatory |
| 5 | Duration | 1 | Intermittent |
| 6 | Function | 2 | Oxygenation |
| 7 | Qualifier | 1 | Hyperbaric |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for 5A05121 under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 5A05121
Is 5A05121 a billable code?
Yes. 5A05121 is a complete seven-character ICD-10-PCS code, specific enough to report Extracorporeal Hyperbaric Oxygenation, Intermittent on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 5A05121 mean?
5A05121 breaks down character by character: the 1st character 5 is the Section (Extracorporeal or Systemic Assistance and Performance); the 2nd character A is the Body System (Physiological Systems); the 3rd character 0 is the Operation (Assistance); the 4th character 5 is the BodySystem (Circulatory); the 5th character 1 is the Duration (Intermittent); the 6th character 2 is the Function (Oxygenation); the 7th character 1 is the Qualifier (Hyperbaric).
What is the ICD-9-PCS equivalent of 5A05121?
Under the General Equivalence Mappings, Extracorporeal Hyperbaric Oxygenation, Intermittent crosswalks to ICD-9-PCS 93.59 and 93.95. The mapping is approximate, so confirm it fits the documentation.
