Deleted ICD-10-PCS Code DFY1KZZ Laser Interstitial Thermal Therapy of Gallbladder

Radiation Therapy›Hepatobiliary System and Pancreas›Other Radiation
  • Deleted — Not Valid for Claims
  • Valid FY 2020–2022
  • Deleted in FY 2023
CMS Source: CMS ICD-10-PCS code files FY 2020–2022 and the ICD-10-PCS conversion table.
Do not report DFY1KZZ for inpatient discharges on or after October 1, 2022. Claims with a deleted code are rejected. Use one of the replacement codes below.

DFY1KZZ is a deleted ICD-10-PCS code, removed from the code set effective October 1, 2022. It was valid for laser Interstitial Thermal Therapy of Gallbladder on inpatient discharges from October 1, 2019 through September 30, 2022, and later discharges must use a current code. The CMS conversion table maps it to 0F540Z3, 0F543Z3, and 0F544Z3.

Replacement Codes for DFY1KZZ

The CMS ICD-10-PCS conversion table maps DFY1KZZ to these codes. Confirm the choice against the procedure documentation and the code page's table.

  • 0F540Z3 Destruction of Gallbladder using Laser Interstitial Thermal Therapy, Open Approach
  • 0F543Z3 Destruction of Gallbladder using Laser Interstitial Thermal Therapy, Percutaneous Approach
  • 0F544Z3 Destruction of Gallbladder using Laser Interstitial Thermal Therapy, Percutaneous Endoscopic Approach

Current Codes Starting With DFY1

Active FY 2027 codes that share the first 4 characters of DFY1KZZ (same table and body part).

  • DFY17ZZ Contact Radiation of Gallbladder
  • DFY18ZZ Hyperthermia of Gallbladder
  • DFY1CZZ Intraoperative Radiation Therapy (IORT) of Gallbladder
  • DFY1FZZ Plaque Radiation of Gallbladder

Code History

FY 2020AddedAdded to the ICD-10-PCS code setEffective October 1, 2019.
FY 2022Last fiscal year the code was validValid for discharges through September 30, 2022.
FY 2023DeletedRemoved from the ICD-10-PCS code setEffective October 1, 2022.

Questions About DFY1KZZ

Is DFY1KZZ still a valid ICD-10-PCS code?

No. DFY1KZZ was deleted from ICD-10-PCS effective October 1, 2022, with the FY 2023 code set. It cannot be reported for inpatient discharges on or after that date.

What replaced DFY1KZZ?

The CMS ICD-10-PCS conversion table maps DFY1KZZ to 0F540Z3, 0F543Z3, and 0F544Z3. Pick the one that matches the procedure documentation; a conversion is a starting point, not an automatic substitution.

Can I still use DFY1KZZ for older discharges?

Yes, for inpatient discharges from October 1, 2019 through September 30, 2022. ICD-10-PCS codes are assigned by the code set in effect on the date of discharge, so a corrected or late claim for a discharge in that window still uses DFY1KZZ.