099W8ZZDrainage of Right Sphenoid Sinus, Via Natural or Artificial Opening Endoscopic
- Billable / Specific Code
099W8ZZ is a billable ICD-10-PCS procedure code for Drainage of Right Sphenoid Sinus, Via Natural or Artificial Opening Endoscopic. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The root operation Drainage involves taking or letting out fluids and/or gases from 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 | 9 | Drainage |
| 4 | BodyPart | W | Sphenoid Sinus, Right |
| 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 099W8ZZ under the General Equivalence Mappings.
Code History
- 099W4ZZ — Drainage of Right Sphenoid Sinus, Perc Endo Approach
Similar Procedure Codes
Questions About 099W8ZZ
Is 099W8ZZ a billable code?
Yes. 099W8ZZ is a complete seven-character ICD-10-PCS code, specific enough to report Drainage of Right Sphenoid Sinus, Via Natural or Artificial Opening Endoscopic on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 099W8ZZ mean?
099W8ZZ 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 9 is the Operation (Drainage); the 4th character W is the BodyPart (Sphenoid Sinus, Right); 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 is the ICD-9-PCS equivalent of 099W8ZZ?
Under the General Equivalence Mappings, Drainage of Right Sphenoid Sinus, Via Natural or Artificial Opening Endoscopic crosswalks to ICD-9-PCS 22.01. The mapping is approximate, so confirm it fits the documentation.
