0Y640ZZDetachment at Bilateral Hindquarter, Open Approach
- Billable / Specific Code
0Y640ZZ is a billable ICD-10-PCS procedure code for Detachment at Bilateral Hindquarter, Open Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to 17 MS-DRGs. The root operation Detachment involves cutting off all or a portion of the upper or lower extremities. The Alphabetic Index lists this code under Amputation. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Above knee and other proximal lower extremity amputation.
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 | Y | Anatomical Regions, Lower Extremities |
| 3 | Operation | 6 | Detachment |
| 4 | BodyPart | 4 | Hindquarter, Bilateral |
| 5 | Approach | 0 | Open |
| 6 | Device | Z | No Device |
| 7 | Qualifier | Z | No Qualifier |
In the ICD-10-PCS Alphabetic Index
The FY 2027 ICD-10-PCS Alphabetic Index refers to 0Y640ZZ as Amputation. These index entries lead to this code:
To code amputation, open the FY 2027 ICD-10-PCS Alphabetic Index at Amputation. The entry lists 0Y640ZZ directly as a complete, billable code.
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.
Questions About 0Y640ZZ
Is 0Y640ZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Detachment at Bilateral Hindquarter, Open Approach on inpatient claims from October 1, 2026 through September 30, 2027.
What is the ICD-10-PCS code for amputation?
The ICD-10-PCS Alphabetic Index lists Amputation under code 0Y640ZZ, Detachment at Bilateral Hindquarter, Open Approach, billable on inpatient claims in fiscal year 2027.
What do the characters in 0Y640ZZ mean?
The code breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character Y is the Body System (Anatomical Regions, Lower Extremities); the 3rd character 6 is the Operation (Detachment); the 4th character 4 is the BodyPart (Hindquarter, Bilateral); 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 0Y640ZZ group to?
On an inpatient stay, Detachment at Bilateral Hindquarter, Open Approach maps to MS-DRGs 239, 240, 241, 403, 404, 474, 475, 476, 579, 580, 581, 907, 908, 909, 957, 958, 959, with relative weights from 1.1355 to 7.5502. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 0Y640ZZ?
Under the General Equivalence Mappings, Detachment at Bilateral Hindquarter, Open Approach crosswalks to ICD-9-PCS 84.19 (Abdominopelvic amputation). The mapping is approximate, so confirm it fits the documentation.
