099N0ZXDrainage of Nasopharynx, Open Approach, Diagnostic
- Billable / Specific Code
099N0ZX is a billable ICD-10-PCS procedure code for Drainage of Nasopharynx, Open Approach, Diagnostic. 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 | N | Nasopharynx |
| 5 | Approach | 0 | Open |
| 6 | Device | Z | No Device |
| 7 | Qualifier | X | Diagnostic |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for 099N0ZX under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 099N0ZX
Is 099N0ZX a billable code?
Yes. 099N0ZX is a complete seven-character ICD-10-PCS code, specific enough to report Drainage of Nasopharynx, Open Approach, Diagnostic on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 099N0ZX mean?
099N0ZX 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 N is the BodyPart (Nasopharynx); 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 is the ICD-9-PCS equivalent of 099N0ZX?
Under the General Equivalence Mappings, Drainage of Nasopharynx, Open Approach, Diagnostic crosswalks to ICD-9-PCS 29.12. The mapping is approximate, so confirm it fits the documentation.
