0C01XZZAlteration of Lower Lip, External Approach

  • Billable / Specific Code
ICD-10-PCS 0C01XZZ
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

0C01XZZ is a billable ICD-10-PCS procedure code for Alteration of Lower Lip, External Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to 11 MS-DRGs. The root operation Alteration involves modifying the anatomic structure of a body part without affecting the function of the body part.

Code Identity

ICD-10-PCS Code
0C01XZZ
Billable Status
Yes — Valid for Submission
Code Describes
Alteration of Lower Lip, External Approach
Parent Code
0C0 Mouth and Throat, Alteration
Short Description
Alteration of Lower Lip, External Approach

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.

PositionDesignationValueMeaning
1Section0Medical and Surgical
2Body SystemCMouth and Throat
3Operation0Alteration
4BodyPart1Lower Lip
5ApproachXExternal
6DeviceZNo Device
7QualifierZNo Qualifier

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for 0C01XZZ under the General Equivalence Mappings.

27.59
Approximate match.

Similar Procedure Codes

Questions About 0C01XZZ

Is 0C01XZZ a billable code?

Yes. 0C01XZZ is a complete seven-character ICD-10-PCS code, specific enough to report Alteration of Lower Lip, External Approach on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in 0C01XZZ mean?

0C01XZZ 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 0 is the Operation (Alteration); the 4th character 1 is the BodyPart (Lower Lip); the 5th character X is the Approach (External); the 6th character Z is the Device (No Device); the 7th character Z is the Qualifier (No Qualifier).

What MS-DRG does 0C01XZZ group to?

On an inpatient stay, Alteration of Lower Lip, External Approach maps to MS-DRGs 137, 138, 579, 580, 581, 907, 908, 909, 957, 958, 959, with relative weights from 0.8862 to 7.6199. The MS-DRG sets the fixed Medicare payment for the stay.

What is the ICD-9-PCS equivalent of 0C01XZZ?

Under the General Equivalence Mappings, Alteration of Lower Lip, External Approach crosswalks to ICD-9-PCS 27.59. The mapping is approximate, so confirm it fits the documentation.