0C520ZZDestruction of Hard Palate, Open Approach
- Billable / Specific Code
0C520ZZ is a billable ICD-10-PCS procedure code for Destruction of Hard Palate, Open Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRGs 137, 138. The root operation Destruction involves physical eradication of all or a portion of a body part by the direct use of energy, force, or a destructive agent. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under ENT excision (excluding nasal passage, sinuses, tongue, salivary glands, larynx).
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 | 5 | Destruction |
| 4 | BodyPart | 2 | Hard Palate |
| 5 | Approach | 0 | Open |
| 6 | Device | Z | No Device |
| 7 | Qualifier | Z | No Qualifier |
In the ICD-10-PCS Alphabetic Index
These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:
To code destruction of the hard palate, open the FY 2027 ICD-10-PCS Alphabetic Index at Destruction, then the subterms Palate, Hard. The index leads to table 0C5, where the approach, device and qualifier values shown in the breakdown above complete the seven-character code 0C520ZZ.
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 0C520ZZ
Is 0C520ZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Destruction of Hard Palate, Open Approach on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in 0C520ZZ mean?
The code 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 5 is the Operation (Destruction); the 4th character 2 is the BodyPart (Hard Palate); 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 0C520ZZ group to?
On an inpatient stay, Destruction of Hard Palate, Open Approach maps to MS-DRGs 137, 138, with relative weights from 0.9184 to 1.2517. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 0C520ZZ?
Under the General Equivalence Mappings, Destruction of Hard Palate, Open Approach crosswalks to ICD-9-PCS 27.31 (Local excision or destruction of lesion or tissue of bony palate). The mapping is approximate, so confirm it fits the documentation.
