09BC8ZZExcision of Left Mastoid Sinus, Via Natural or Artificial Opening Endoscopic
- Billable / Specific Code
09BC8ZZ is a billable ICD-10-PCS procedure code for Excision of Left Mastoid Sinus, Via Natural or Artificial Opening Endoscopic. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRGs 135, 136. 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 | 9 | Ear, Nose, Sinus |
| 3 | Operation | B | Excision |
| 4 | BodyPart | C | Mastoid Sinus, Left |
| 5 | Approach | 8 | Via Natural or Artificial Opening Endoscopic |
| 6 | Device | Z | No Device |
| 7 | Qualifier | Z | No Qualifier |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for 09BC8ZZ under the General Equivalence Mappings.
Code History
- 09BC4ZZ — Excision of Left Mastoid Sinus, Perc Endo Approach
Similar Procedure Codes
Questions About 09BC8ZZ
Is 09BC8ZZ a billable code?
Yes. 09BC8ZZ is a complete seven-character ICD-10-PCS code, specific enough to report Excision of Left Mastoid Sinus, Via Natural or Artificial Opening Endoscopic on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 09BC8ZZ mean?
09BC8ZZ breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 9 is the Body System (Ear, Nose, Sinus); the 3rd character B is the Operation (Excision); the 4th character C is the BodyPart (Mastoid Sinus, Left); the 5th character 8 is the Approach (Via Natural or Artificial Opening Endoscopic); the 6th character Z is the Device (No Device); the 7th character Z is the Qualifier (No Qualifier).
What MS-DRG does 09BC8ZZ group to?
On an inpatient stay, Excision of Left Mastoid Sinus, Via Natural or Artificial Opening Endoscopic maps to MS-DRGs 135, 136, with relative weights from 1.0153 to 2.1152. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 09BC8ZZ?
Under the General Equivalence Mappings, Excision of Left Mastoid Sinus, Via Natural or Artificial Opening Endoscopic crosswalks to ICD-9-PCS 20.49. The mapping is approximate, so confirm it fits the documentation.
