07TM0ZZResection of Thymus, Open Approach

  • Billable / Specific Code
ICD-10-PCS 07TM0ZZ
CMS Source: FY 2027 ICD-10-PCS dataset. Effective Oct 1, 2026 – Sep 30, 2027.FacebookXLinkedInPrint

07TM0ZZ is a billable ICD-10-PCS procedure code for Resection of Thymus, Open Approach. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to 24 MS-DRGs. The root operation Resection involves cutting out or off, without replacement, all of a body part. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Thymectomy.

Code Identity

ICD-10-PCS Code
07TM0ZZ
Billable Status
Yes — Valid for Submission
Code Describes
Resection of Thymus, Open Approach
Short Description
Resection of Thymus, Open Approach
Same as the full description in the CMS dataset.
Parent Code

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 System7Lymphatic and Hemic Systems
3OperationTResection
4BodyPartMThymus
5Approach0Open
6DeviceZNo Device
7QualifierZNo Qualifier

In the ICD-10-PCS Alphabetic Index

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

Leads to this code's table
Leads to this code's table
Anatomy or device term that leads here
Leads to this code's table
Leads to this code's table
Resection, Thymus
Leads to this code's table

To code resection of the thymus, open the FY 2027 ICD-10-PCS Alphabetic Index at Resection, then the subterm Thymus. The index leads to table 07T, where the approach, device and qualifier values shown in the breakdown above complete the seven-character code 07TM0ZZ.

Browse the full ICD-10-PCS Alphabetic Index →

Clinical Classification (CCSR)

AHRQ groups this procedure code into these clinical categories.

LYM004
Thymectomy
Clinical domain: Lymphatic and Hemic System Procedures

Convert to ICD-9-PCS

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

07.82
Other total excision of thymus
Approximate match.

Similar Procedure Codes

Questions About 07TM0ZZ

Is 07TM0ZZ a billable code?

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

What do the characters in 07TM0ZZ mean?

The code breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 7 is the Body System (Lymphatic and Hemic Systems); the 3rd character T is the Operation (Resection); the 4th character M is the BodyPart (Thymus); 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 07TM0ZZ group to?

On an inpatient stay, Resection of Thymus, Open Approach maps to MS-DRGs 040, 041, 042, 163, 164, 165, 628, 629, 630, 802, 803, 804, 820, 821, 822, 826, 827, 828, 907, 908, 909, 957, 958, 959, with relative weights from 1.1267 to 7.5502. The MS-DRG sets the fixed Medicare payment for the stay.

What is the ICD-9-PCS equivalent of 07TM0ZZ?

Under the General Equivalence Mappings, Resection of Thymus, Open Approach crosswalks to ICD-9-PCS 07.82 (Other total excision of thymus). The mapping is approximate, so confirm it fits the documentation.