ICD-10-PCS 2027 procedure code
D90F4ZZBeam Radiation of Oropharynx using Heavy Particles (Protons,Ions)
Short description: Beam Radiation of Oropharynx using Heavy Particles
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 D90F4ZZ
D90F4ZZ is the ICD-10-PCS code for a beam radiation procedure on the oropharynx using a heavy particles (protons,ions) approach with none (qualifier: none).
In plain terms, this corresponds to teleradiotherapy of other particulate radiation, the ICD-9-CM procedure title it maps to (92.26).
For a different body part, codes include D9004ZZ (ear), D9014ZZ (nose), D9034ZZ (hypopharynx), D9044ZZ (mouth), D9054ZZ (tongue), D9064ZZ (salivary glands) and 5 more.
The same procedure with a different approach is coded D90F0ZZ (photons <1 mev), D90F1ZZ (photons 1 - 10 mev), D90F2ZZ (photons >10 mev), D90F3ZZ (electrons), D90F5ZZ (neutrons) and D90F6ZZ (neutron capture).
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
- DRadiation Therapy
- 2. Body System
- 9Ear, Nose, Mouth and Throat
- 3. Modality
- 0Beam Radiation
- 4. Treatment Site
- FOropharynx
- 5. Modality Qualifier
- 4Heavy Particles (Protons,Ions)
- 6. Isotope
- ZNone
- 7. Qualifier
- ZNone
Other versions of this procedure
Different treatment site
ICD-9-CM equivalent
Converter →- 92.26Teleradiotherapy of other particulate radiationapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about D90F4ZZ
Is D90F4ZZ a valid ICD-10-PCS code for 2027?
- Yes. D90F4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for D90F4ZZ?
- The CMS GEMs map D90F4ZZ to ICD-9-CM 92.26 (Teleradiotherapy of other particulate radiation).