0CMW0Z2Reattachment of Upper Tooth, All, Open Approach

Medical and Surgical›Mouth and Throat›Reattachment

Billable / Specific Code

ICD-10-PCS 0CMW0Z2

CMS Source: FY 2027 ICD-10-PCS dataset. Effective Oct 1, 2026 – Sep 30, 2027.

0CMW0Z2 is a billable ICD-10-PCS procedure code for Reattachment of Upper Tooth, All, Open Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027). The root operation Reattachment involves putting back in or on all or a portion of a separated body part to its normal location or other suitable location. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Dental procedures.

Code Identity

ICD-10-PCS Code

0CMW0Z2

Billable Status

Yes — Valid for Submission

Code Describes

Reattachment of Upper Tooth, All, Open Approach

Short Description

Reattachment of Upper Tooth, All, Open Approach

Same as the full description in the CMS dataset.

Parent Code

0CM

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	M	Reattachment
4	BodyPart	W	Upper Tooth
5	Approach	0	Open
6	Device	Z	No Device
7	Qualifier	2	All

In the ICD-10-PCS Alphabetic Index

These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:

Autotransplant, Tooth

Leads to this code's table

Reattachment, Tooth, Upper

Leads to this code's table

To code autotransplant of the tooth, open the FY 2027 ICD-10-PCS Alphabetic Index at Autotransplant, then the subterm Tooth. The index leads to table 0CM, where the approach, device and qualifier values shown in the breakdown above complete the seven-character code 0CMW0Z2.

Browse the full ICD-10-PCS Alphabetic Index →

Clinical Classification (CCSR)

AHRQ groups this procedure code into these clinical categories.

ENT015

Dental procedures

Clinical domain: Ear, Nose, and Throat Procedures

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.

23.5

Implantation of tooth

Approximate match.

Similar Procedure Codes

Questions About 0CMW0Z2

Is 0CMW0Z2 a billable code?

Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Reattachment of Upper Tooth, All, Open Approach on inpatient claims from October 1, 2026 through September 30, 2027.

What do the characters in 0CMW0Z2 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 M is the Operation (Reattachment); the 4th character W is the BodyPart (Upper Tooth); the 5th character 0 is the Approach (Open); the 6th character Z is the Device (No Device); the 7th character 2 is the Qualifier (All).

What is the ICD-9-PCS equivalent of 0CMW0Z2?

Under the General Equivalence Mappings, Reattachment of Upper Tooth, All, Open Approach crosswalks to ICD-9-PCS 23.5 (Implantation of tooth). The mapping is approximate, so confirm it fits the documentation.