0C9P0ZZDrainage of Tonsils, Open Approach
- Billable / Specific Code
0C9P0ZZ is a billable ICD-10-PCS procedure code for Drainage of Tonsils, Open Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRGs 143, 144, 145. 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 | C | Mouth and Throat |
| 3 | Operation | 9 | Drainage |
| 4 | BodyPart | P | Tonsils |
| 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 0C9P0ZZ under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 0C9P0ZZ
Is 0C9P0ZZ a billable code?
Yes. 0C9P0ZZ is a complete seven-character ICD-10-PCS code, specific enough to report Drainage of Tonsils, Open Approach on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 0C9P0ZZ mean?
0C9P0ZZ breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character C is the Body System (Mouth and Throat); the 3rd character 9 is the Operation (Drainage); the 4th character P is the BodyPart (Tonsils); 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 0C9P0ZZ group to?
On an inpatient stay, Drainage of Tonsils, Open Approach maps to MS-DRGs 143, 144, 145, with relative weights from 1.2023 to 3.7466. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 0C9P0ZZ?
Under the General Equivalence Mappings, Drainage of Tonsils, Open Approach crosswalks to ICD-9-PCS 28.0. The mapping is approximate, so confirm it fits the documentation.
