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ICD-10-PCS 2027 procedure code

0B778ZZDilation of Left Main Bronchus, Via Natural or Artificial Opening Endoscopic

✓ Valid for 2027

Short description: Dilation of Left Main Bronchus, Endo

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 0B778ZZ

0B778ZZ is the ICD-10-PCS code for a dilation procedure on the left main bronchus using a via natural or artificial opening endoscopic approach. In ICD-10-PCS, dilation means expanding an orifice or the lumen of a tubular body part.

In plain terms, this corresponds to bronchial dilation, the ICD-9-CM procedure title it maps to (33.91).

For a different body part, codes include 0B718ZZ (trachea), 0B728ZZ (carina), 0B738ZZ (right main bronchus), 0B748ZZ (right upper lobe bronchus), 0B758ZZ (right middle lobe bronchus), 0B768ZZ (right lower lobe bronchus) and 3 more.

The same procedure with a different approach is coded 0B770ZZ (open), 0B773ZZ (percutaneous), 0B774ZZ (percutaneous endoscopic) and 0B777ZZ (via natural or artificial opening).

With a different device, use 0B778DZ (intraluminal device).

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

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
7Dilation

Expanding an orifice or the lumen of a tubular body part

The orifice can be a natural orifice or an artificially created orifice. Accomplished by stretching a tubular body part using intraluminal pressure or by cutting part of the orifice or wall of the tubular body part

Includes: Percutaneous transluminal angioplasty, internal urethrotomy

4. Body Part
7Main Bronchus, Left
5. Approach
8Via Natural or Artificial Opening Endoscopic

Entry of instrumentation through a natural or artificial external opening to reach and visualize the site of the procedure

6. Device
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 33.91Bronchial dilationapproximate

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 0B778ZZ

Is 0B778ZZ a valid ICD-10-PCS code for 2027?

Yes. 0B778ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0B778ZZ?

The CMS GEMs map 0B778ZZ to ICD-9-CM 33.91 (Bronchial dilation).