Deleted ICD-10-PCS Code D0Y1KZZ Laser Interstitial Thermal Therapy of Brain Stem

Radiation Therapy›Central and Peripheral Nervous System›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 D0Y1KZZ for inpatient discharges on or after October 1, 2022. Claims with a deleted code are rejected. Use one of the replacement codes below.

D0Y1KZZ 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 Brain Stem 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 00500Z3, 00503Z3, and 00504Z3.

Replacement Codes for D0Y1KZZ

The CMS ICD-10-PCS conversion table maps D0Y1KZZ to these codes. Confirm the choice against the procedure documentation and the code page's table.

  • 00500Z3 Destruction of Brain using Laser Interstitial Thermal Therapy, Open Approach
  • 00503Z3 Destruction of Brain using Laser Interstitial Thermal Therapy, Percutaneous Approach
  • 00504Z3 Destruction of Brain using Laser Interstitial Thermal Therapy, Percutaneous Endoscopic Approach

Current Codes Starting With D0Y1

Active FY 2027 codes that share the first 4 characters of D0Y1KZZ (same table and body part).

  • D0Y17ZZ Contact Radiation of Brain Stem
  • D0Y18ZZ Hyperthermia of Brain Stem
  • D0Y1CZZ Intraoperative Radiation Therapy (IORT) of Brain Stem
  • D0Y1FZZ Plaque Radiation of Brain Stem

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 D0Y1KZZ

Is D0Y1KZZ still a valid ICD-10-PCS code?

No. D0Y1KZZ 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 D0Y1KZZ?

The CMS ICD-10-PCS conversion table maps D0Y1KZZ to 00500Z3, 00503Z3, and 00504Z3. Pick the one that matches the procedure documentation; a conversion is a starting point, not an automatic substitution.

Can I still use D0Y1KZZ 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 D0Y1KZZ.