00BM0ZZExcision of Facial Nerve, Open Approach
- Billable / Specific Code
00BM0ZZ is a billable ICD-10-PCS procedure code for Excision of Facial Nerve, Open Approach. 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 | 0 | Central Nervous System and Cranial Nerves |
| 3 | Operation | B | Excision |
| 4 | BodyPart | M | Facial Nerve |
| 5 | Approach | 0 | Open |
| 6 | Device | Z | No Device |
| 7 | Qualifier | Z | No Qualifier |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for 00BM0ZZ under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 00BM0ZZ
Is 00BM0ZZ a billable code?
Yes. 00BM0ZZ is a complete seven-character ICD-10-PCS code, specific enough to report Excision of Facial Nerve, Open Approach on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 00BM0ZZ mean?
00BM0ZZ breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 0 is the Body System (Central Nervous System and Cranial Nerves); the 3rd character B is the Operation (Excision); the 4th character M is the BodyPart (Facial Nerve); the 5th character 0 is the Approach (Open); the 6th character Z is the Device (No Device); the 7th character Z is the Qualifier (No Qualifier).
What MS-DRG does 00BM0ZZ group to?
On an inpatient stay, Excision of Facial Nerve, Open Approach maps to MS-DRGs 040, 041, 042, 143, 144, 145, 515, 516, 517, 907, 908, 909, with relative weights from 1.2023 to 3.8612. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 00BM0ZZ?
Under the General Equivalence Mappings, Excision of Facial Nerve, Open Approach crosswalks to ICD-9-PCS 40.6 and 40.7. The mapping is approximate, so confirm it fits the documentation.
