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ICD-10-PCS 2027 procedure code

0BTT0ZZResection of Diaphragm, Open Approach

✓ Valid for 2027O.R. procedure

Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 0BTT0ZZ

0BTT0ZZ is the ICD-10-PCS code for a resection procedure on the diaphragm using an open approach. In ICD-10-PCS, resection means cutting out or off, without replacement, all of a body part.

In plain terms, this corresponds to other operations on thorax, the ICD-9-CM procedure title it maps to (34.99).

For a different body part, codes include 0BT10ZZ (trachea), 0BT20ZZ (carina), 0BT30ZZ (right main bronchus), 0BT40ZZ (right upper lobe bronchus), 0BT50ZZ (right middle lobe bronchus), 0BT60ZZ (right lower lobe bronchus) and 13 more.

The same procedure with a different approach is coded 0BTT4ZZ (percutaneous endoscopic).

It is an operating-room procedure in the MS-DRG logic for DRG 166 (Other Respiratory System O.R. Procedures with MCC), DRG 167 (Other Respiratory System O.R. Procedures with CC), DRG 168 (Other Respiratory System O.R. Procedures without CC/MCC), DRG 907 (Other O.R. Procedures for Injuries with MCC), DRG 908 (Other O.R. Procedures for Injuries with CC) and DRG 909 (Other O.R. Procedures for Injuries without CC/MCC), under the surgical categories “Other Respiratory System O.R. Procedures”, “Other O.R. Procedures for Injuries” and “Other O.R. Procedures for Multiple Significant Trauma”.

It was added in FY2018, effective October 1, 2017.

What each character means

1. Section
0Medical and Surgical
2. Body System
BRespiratory System
3. Operation
TResection

Cutting out or off, without replacement, all of a body part

Includes: Total nephrectomy, total lobectomy of lung

4. Body Part
TDiaphragm
5. Approach
0Open

Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

6. Device
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

ICD-9-CM equivalent

Converter →
  • 34.99Other operations on thoraxapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2018 (effective 10/1/2017): Added
  • No changes since FY2018.

Common questions about 0BTT0ZZ

Is 0BTT0ZZ a valid ICD-10-PCS code for 2027?

Yes. 0BTT0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0BTT0ZZ an O.R. procedure?

Yes. 0BTT0ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0BTT0ZZ group to?

Depending on the principal diagnosis, 0BTT0ZZ can group to MS-DRG 166, MS-DRG 167, MS-DRG 168, MS-DRG 907, MS-DRG 908 and MS-DRG 909.

What is the ICD-9 procedure code for 0BTT0ZZ?

The CMS GEMs map 0BTT0ZZ to ICD-9-CM 34.99 (Other operations on thorax).