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ICD-10-PCS 2027 procedure code

0F778ZZDilation of Common Hepatic Duct, Via Natural or Artificial Opening Endoscopic

✓ Valid for 2027

Short description: Dilation of Common Hepatic Duct, Endo

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 0F778ZZ

0F778ZZ is the ICD-10-PCS code for a dilation procedure on the hepatic duct, common 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 endoscopic dilation of ampulla and biliary duct, the ICD-9-CM procedure title it maps to (51.84).

For a different body part, codes include 0F758ZZ (right hepatic duct), 0F768ZZ (left hepatic duct), 0F788ZZ (cystic duct), 0F798ZZ (common bile duct), 0F7C8ZZ (ampulla of vater), 0F7D8ZZ (pancreatic duct) and 1 more.

The same procedure with a different approach is coded 0F770ZZ (open), 0F773ZZ (percutaneous), 0F774ZZ (percutaneous endoscopic) and 0F777ZZ (via natural or artificial opening).

With a different device, use 0F778DZ (intraluminal device).

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

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

What each character means

1. Section
0Medical and Surgical
2. Body System
FHepatobiliary System and Pancreas
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
7Hepatic Duct, Common
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 →
  • 51.84Endoscopic dilation of ampulla and biliary ductapproximate

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 0F778ZZ

Is 0F778ZZ a valid ICD-10-PCS code for 2027?

Yes. 0F778ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0F778ZZ?

The CMS GEMs map 0F778ZZ to ICD-9-CM 51.84 (Endoscopic dilation of ampulla and biliary duct).