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ICD-10-PCS 2027 procedure code

0B970ZZDrainage of Left Main Bronchus, Open Approach

✓ Valid for 2027O.R. procedure

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 0B970ZZ

0B970ZZ is the ICD-10-PCS code for a drainage procedure on the left main bronchus using an open approach. In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.

In plain terms, this corresponds to incision of bronchus, the ICD-9-CM procedure title it maps to (33.0).

For a different body part, codes include 0B910ZZ (trachea), 0B920ZZ (carina), 0B930ZZ (right main bronchus), 0B940ZZ (right upper lobe bronchus), 0B950ZZ (right middle lobe bronchus), 0B960ZZ (right lower lobe bronchus) and 15 more.

The same procedure with a different approach is coded 0B973ZZ (percutaneous), 0B974ZZ (percutaneous endoscopic), 0B977ZZ (via natural or artificial opening) and 0B978ZZ (via natural or artificial opening endoscopic).

With a different device, use 0B9700Z (drainage device).

It is an operating-room procedure in the MS-DRG logic for DRG 163 (Major Chest Procedures with MCC), DRG 164 (Major Chest Procedures with CC) and DRG 165 (Major Chest Procedures without CC/MCC), under the surgical category “Major Chest Procedures”.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

What each character means

1. Section
0Medical and Surgical
2. Body System
BRespiratory System
3. Operation
9Drainage

Taking or letting out fluids and/or gases from a body part

The qualifier DIAGNOSTIC is used to identify drainage procedures that are biopsies

Includes: Thoracentesis, incision and drainage

4. Body Part
7Main Bronchus, Left
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

Different device

Different qualifier

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 →
  • 33.0Incision of bronchusapproximate

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
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about 0B970ZZ

Is 0B970ZZ a valid ICD-10-PCS code for 2027?

Yes. 0B970ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0B970ZZ an O.R. procedure?

Yes. 0B970ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0B970ZZ group to?

Depending on the principal diagnosis, 0B970ZZ can group to MS-DRG 163, MS-DRG 164 and MS-DRG 165.

What is the ICD-9 procedure code for 0B970ZZ?

The CMS GEMs map 0B970ZZ to ICD-9-CM 33.0 (Incision of bronchus).