2025 ICD-10-CM Procedure Code 0WM20ZZ

Reattachment of Face, Open Approach

ICD-10-PCS Code:: 0WM20ZZ
ICD-10-PCS Code for:: Reattachment of Face, Open Approach
Is Billable?: Yes - Valid for Submission
Code Navigator:

0WM20ZZ is a billable procedure code used to specify the performance of reattachment of face, open approach. The code is valid for the year 2025 for the submission of HIPAA-covered transactions. The procedure code involves putting back in or on all or a portion of a separated body part to its normal location or other suitable location. Procedure code explanation: vascular circulation and nervous pathways may or may not be reestablished reattachment of hand, reattachment of avulsed kidney

Table of Contents

Code Information
PCS Table
Clinical Classification
Diagnostic Related Groups Mapping
Convert to ICD-9-PCS
Other Similar Codes

0WM20ZZ PCS Table

In an PCS table each code is represented by up seven alphanumeric characters, with each character in the table respresenting different aspects of the procedure. In the table provided below, each row represents an individual character and includes information about the character's position, designation, label, and procedure notes. For this PCS table the procedure code is in the medical and surgical section and is part of the anatomical regions, general body system, classified under reattachment operation. The applicable bodypart for this procedure code is face.

Position	Designation	Character	Label	Procedures Notes
1	Section	0	Medical and Surgical
2	Body System	W	Anatomical Regions, General
3	Operation	M	Reattachment	Involves: Putting back in or on all or a portion of a separated body part to its normal location or other suitable location Explanation: Vascular circulation and nervous pathways may or may not be reestablished Includes: Reattachment of hand, reattachment of avulsed kidney
4	BodyPart	2	Face
5	Approach	0	Open	Involves: Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure
6	Device	Z	No Device	Explanation: The value Z is used for the sixth character to indicate that a specific device does not apply to the procedure.
7	Qualifier	Z	No Qualifier	Explanation: The value Z is used for the seventh character to indicate that a specific qualifier does not apply to the procedure.

Clinical Classification

Clinical Category is ENT procedures, NEC
CCSR Category Code: ENT017
Clinical Domain is Ear, Nose, and Throat Procedures - ENT contains 17 categories that include procedures performed on the ear, nose, and throat (ENT) as well as the head and neck, such as myringotomy, frenectomy, and tonsillectomy as well as diagnostic audiology.

0WM20ZZ is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together procedures for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on the primary procedure being performed. Once a patient is assigned a particular group, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care associated with a particular procedure. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The procedure code 0WM20ZZ is present in the following groups for version MS-DRG V42.0 applicable from 10/01/2024 through 09/30/2025.

MS-DRG	MS-DRG Title	MCD
143	Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC	03
144	Other Ear, Nose, Mouth and Throat O.R. Procedures with CC	03
145	Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC	03
579	Other Skin, Subcutaneous Tissue and Breast Procedures with MCC	09
580	Other Skin, Subcutaneous Tissue and Breast Procedures with CC	09
581	Other Skin, Subcutaneous Tissue and Breast Procedures without CC/MCC	09
907	Other O.R. Procedures for Injuries with MCC	21
908	Other O.R. Procedures for Injuries with CC	21
909	Other O.R. Procedures for Injuries without CC/MCC	21

Convert to ICD-9-PCS

The following crosswalk between ICD-10-PCS to ICD-9-PCS is based based on the General Equivalence Mappings (GEMS) information:

ICD-9-PCS: 8689 (Approximate Flag) Approximate Flag
The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.

Other ICD-10-PCS Codes Used for Reattachment Face

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What is ICD-10-PCS?

The ICD-10 Procedure Coding System (ICD-10-PCS) is a catalog of procedural codes used by medical professionals for hospital inpatient healthcare settings. The Centers for Medicare and Medicaid Services (CMS) maintain the catalog in the U.S. releasing yearly updates. The 2025 ICD-10-PCS codes are to be used for discharges occurring from October 1, 2024 through September 30, 2025.

Each ICD-10-PCS code has a structure of seven alphanumeric characters and contains no decimals. The first character defines the major "section". Depending on the "section" the second through seventh characters mean different things.