01B20ZXExcision of Phrenic Nerve, Open Approach, Diagnostic
- Billable / Specific Code
01B20ZX is a billable ICD-10-PCS procedure code for Excision of Phrenic Nerve, Open Approach, Diagnostic. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to 12 MS-DRGs. The root operation Excision involves cutting out or off, without replacement, a portion of a body part.
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 | 0 | Medical and Surgical |
| 2 | Body System | 1 | Peripheral Nervous System |
| 3 | Operation | B | Excision |
| 4 | BodyPart | 2 | Phrenic Nerve |
| 5 | Approach | 0 | Open |
| 6 | Device | Z | No Device |
| 7 | Qualifier | X | Diagnostic |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for 01B20ZX under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 01B20ZX
Is 01B20ZX a billable code?
Yes. 01B20ZX is a complete seven-character ICD-10-PCS code, specific enough to report Excision of Phrenic Nerve, Open Approach, Diagnostic on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 01B20ZX mean?
01B20ZX breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 1 is the Body System (Peripheral Nervous System); the 3rd character B is the Operation (Excision); the 4th character 2 is the BodyPart (Phrenic Nerve); the 5th character 0 is the Approach (Open); the 6th character Z is the Device (No Device); the 7th character X is the Qualifier (Diagnostic).
What MS-DRG does 01B20ZX group to?
On an inpatient stay, Excision of Phrenic Nerve, Open Approach, Diagnostic maps to MS-DRGs 040, 041, 042, 515, 516, 517, 907, 908, 909, 957, 958, 959, with relative weights from 1.3127 to 7.6199. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 01B20ZX?
Under the General Equivalence Mappings, Excision of Phrenic Nerve, Open Approach, Diagnostic crosswalks to ICD-9-PCS 41.2. The mapping is approximate, so confirm it fits the documentation.
